Solutions Search - Supercapacitor Chargers

60V Input Monolithic Converter Powers Critical Circuits without Supercaps or Other Additional Components

Victor Khasiev - Applications Engineer Nov 15th 2016
Design Note DN1040: Introduction The LTC3649 is a monolithic step-down regulator capable of operating from an input voltage range of 3.1V to 60V, and efficiently producing a (single) resistorprogrammable output voltage at up to 4A of output current. These features alone make it a compelling industrial or automotive supply for ...

 

Bidirectional DC/DC Regulator and Supercapacitor Charger

Victor Khasiev - Applications Engineer Nov 15th 2016
Design Note DN558: Introduction The LTC®3110 bidirectional buck-boost DC/DC regulator charges and balances a supercapacitor when a bus voltage is present (for example 3.3V) and discharges the supercapacitor into the load when the bus fails. The LTC3110 maintains the bus’s nominal level (3.3V in the example in Figure ...

 

Electrolytic Capacitor-Based Data Backup Power Solution for a 12V System Regulated from 5V to 36V Input

Victor Khasiev - Applications Engineer Jul 5th 2016
Design Note 553: Introduction Data loss is a concern in telecom, industrial and automotive applications where embedded systems depend on a consistent supply of power. Sudden power interruptions can corrupt data during read and write operations for hard drives and flash memory. Often, embedded systems need just 10ms to 50ms ...

 

2A Single-Inductor Bidirectional Power Backup Supply Provides Continuous Power During Input Supply Disruption

Jan 5th 2016
MILPITAS, CA - January 5, 2016 - Linear Technology Corporation introduces the LTC3643, a bidirectional, high voltage boost capacitor charger that automatically converts to a buck regulator for system backup. The proprietary, single-inductor topology with integrated PowerPath™ functionality does the work of two separate switching regulators, ...

 

DC2220A - LTC3643 Demo Board | 2A, Bidirectional 40V Boost Charger/Buck Back-Up Power Regulator, 3V ≤ VIN ≤ 17V (Boost), Vout = 5V @ 2A/3A/4A (Buck)

Nov 23rd 2015
Demonstration circuit 2220A is a 2A, bidirectional charger/ regulator featuring the LTC®3643, a bidirectional synchronous step-up charger and step-down converter. DC2220A implements backup by charging a storage capacitor up to approximately 40V in boost mode, when the input voltage is present. It discharges the storage capacitor ...

 

LTC3643 5V Backup System with VIN From 5V to 60V

Nov 4th 2015
The LTC®3643 is a bidirectional synchronous step-up charger and step-down converter which efficiently charges a capacitor array up to 40V from an input supply between 3V to 17V. When the input supply falls below the programmable power-fail threshold, the step-up charger operates in reverse as a synchronous step-down regulator ...

 

LTC3643 12V Backup System for Automotive Applications

Nov 4th 2015
The LTC®3643 is a bidirectional synchronous step-up charger and step-down converter which efficiently charges a capacitor array up to 40V from an input supply between 3V to 17V. When the input supply falls below the programmable power-fail threshold, the step-up charger operates in reverse as a synchronous step-down regulator ...

 

LTC3643 Temporary Supply Booster

Nov 4th 2015
The LTC®3643 is a bidirectional synchronous step-up charger and step-down converter which efficiently charges a capacitor array up to 40V from an input supply between 3V to 17V. When the input supply falls below the programmable power-fail threshold, the step-up charger operates in reverse as a synchronous step-down regulator ...

 

LTC3643 40V Synchronous Boost Regulator with Input Disconnect

Nov 4th 2015
The LTC®3643 is a bidirectional synchronous step-up charger and step-down converter which efficiently charges a capacitor array up to 40V from an input supply between 3V to 17V. When the input supply falls below the programmable power-fail threshold, the step-up charger operates in reverse as a synchronous step-down regulator ...

 

LT3761 94% Efficient Boost LED Driver for Automotive Headlamp with 25:1 PWM Dimming

Sep 3rd 2015
The LT®3761 is a DC/DC controller designed to operate as a constant-current source and constant-voltage regulator. It features a programmable internal PWM dimming signal. The LT3761 is ideally suited for driving high current LEDs, but also has features to make it suitable for charging batteries and supercapacitors. The ...

 

LT3761 40W SEPIC LED Driver

Sep 3rd 2015
The LT®3761 is a DC/DC controller designed to operate as a constant-current source and constant-voltage regulator. It features a programmable internal PWM dimming signal. The LT3761 is ideally suited for driving high current LEDs, but also has features to make it suitable for charging batteries and supercapacitors. The ...

 

LT3761 10W Grounded Anode Inverting LED Driver

Sep 3rd 2015
The LT®3761 is a DC/DC controller designed to operate as a constant-current source and constant-voltage regulator. It features a programmable internal PWM dimming signal. The LT3761 is ideally suited for driving high current LEDs, but also has features to make it suitable for charging batteries and supercapacitors. The ...

 

LT3761 Boost LED Driver for 30kHz PWM Dimming

Sep 3rd 2015
The LT®3761 is a DC/DC controller designed to operate as a constant-current source and constant-voltage regulator. It features a programmable internal PWM dimming signal. The LT3761 is ideally suited for driving high current LEDs, but also has features to make it suitable for charging batteries and supercapacitors. The ...

 

LT3761 Buck Mode 5A LED Driver for 40kHz PWM Dimming

Sep 3rd 2015
The LT®3761 is a DC/DC controller designed to operate as a constant-current source and constant-voltage regulator. It features a programmable internal PWM dimming signal. The LT3761 is ideally suited for driving high current LEDs, but also has features to make it suitable for charging batteries and supercapacitors. The ...

 

LT3761 80W High Voltage Boost LED Driver with 25:1 Internally Generated PWM Dimming

Sep 3rd 2015
The LT®3761 is a DC/DC controller designed to operate as a constant-current source and constant-voltage regulator. It features a programmable internal PWM dimming signal. The LT3761 is ideally suited for driving high current LEDs, but also has features to make it suitable for charging batteries and supercapacitors. The ...

 

LT3796 Boost LED Driver for Twin LEDs with Detection and Protection for Faulty LED

Sep 1st 2015
The LT®3796/LT3796-1 are DC/DC controllers designed to regulate a constant-current or constant-voltage and are ideal for driving LEDs. The fixed frequency and current mode architecture result in stable operation over a wide range of supply and output voltages. Two ground referred voltage FB pins serve as the input for ...

 

LTC3110 3.3V/2A Output from Stack of Supercapacitors Backup/Recharge Application with Active Voltage Balancing

Aug 27th 2015
The LTC®3110 is a 2A bidirectional buck-boost DC/DC regulator with capacitor charger and balancer. Its wide 0.1V to 5.5V capacitor/battery voltage and 1.8V to 5.25V system backup voltage ranges make it well suited to a wide variety of backup applications using supercapacitors or batteries. A proprietary low noise switching ...

 

LTC3110 1.8V/300mA Output from Single Capacitor Discharged from 2.5V to 1V and with Reserve Available Down to 0.3V

Aug 27th 2015
The LTC®3110 is a 2A bidirectional buck-boost DC/DC regulator with capacitor charger and balancer. Its wide 0.1V to 5.5V capacitor/battery voltage and 1.8V to 5.25V system backup voltage ranges make it well suited to a wide variety of backup applications using supercapacitors or batteries. A proprietary low noise switching ...

 

LTC3110 500mA USB Charge/Backup Application with Variable Charging Power, PCHRG, Depending on System Load

Aug 27th 2015
The LTC®3110 is a 2A bidirectional buck-boost DC/DC regulator with capacitor charger and balancer. Its wide 0.1V to 5.5V capacitor/battery voltage and 1.8V to 5.25V system backup voltage ranges make it well suited to a wide variety of backup applications using supercapacitors or batteries. A proprietary low noise switching ...

 

LTC3110 Autonomous Backup and Recharge Application with Input Isolation Switch

Aug 27th 2015
The LTC®3110 is a 2A bidirectional buck-boost DC/DC regulator with capacitor charger and balancer. Its wide 0.1V to 5.5V capacitor/battery voltage and 1.8V to 5.25V system backup voltage ranges make it well suited to a wide variety of backup applications using supercapacitors or batteries. A proprietary low noise switching ...

 

LTC3110 Lead Acid Battery Backup/Recharge Application

Aug 27th 2015
The LTC®3110 is a 2A bidirectional buck-boost DC/DC regulator with capacitor charger and balancer. Its wide 0.1V to 5.5V capacitor/battery voltage and 1.8V to 5.25V system backup voltage ranges make it well suited to a wide variety of backup applications using supercapacitors or batteries. A proprietary low noise switching ...

 

Data Backup Solution for 1mm, Low Profile Industrial Applications

Victor Khasiev - Applications Engineer Aug 25th 2015
Introduction Data backup and retention during a power interruption is required in a wide variety of industrial and automotive applications, where emergency backup power supplies (such as a UPS) may be unfeasible. For example, a vehicle may need to transmit geographical coordinates and the vehicle ID during an abrupt battery ...

 

DC1937B - LTC3350EUHF Demo Board | High Current Supercapacitor Backup Controller and System Monitor, up to 20Vin

Jul 13th 2015
Demonstration circuit 1937B is a supercapacitor charger and backup controller with supercapacitor health and system monitoring; featuring the LTC®3350. The LTC3350 has a 10.8V to 20VIN, 5.3A buck supercapacitor charger, a 25W output backup boost controller and an input ideal diode to disconnect the input supply in backup ...

 

LTC3110 - 2A Bidirectional Buck-Boost DC/DC Regulator and Charger/Balancer

Jun 17th 2015
The LTC®3110 is a 2A bidirectional buck-boost DC/DC regulator with capacitor charger and balancer. Its wide 0.1V to 5.5V capacitor/battery voltage and 1.8V to 5.25V system backup voltage ranges make it well suited to a wide variety of backup applications using supercapacitors or batteries. A proprietary low noise switching ...

 

2A Buck-Boost Supercapacitor Charger Features Bidirectional Operation for Fast Charging & System Backup

Jun 16th 2015
MILPITAS, CA - June 16, 2015 - Linear Technology Corporation introduces the LTC3110, a bidirectional, programmable input current buck-boost supercapacitor charger with active charge balancing for 1- or 2-series supercapacitors. The proprietary low noise buck-boost topology does the work of two separate switching regulators, ...

 

DC1964A - LTC3110 Demo Board | Bidirectional Buck-Boost with Supercap Charger/Balancer, 1.8V ≤ VIN ≤ 5.5V, 1.8V or 3.2V VBACKUP at 2A

Jun 2nd 2015
Demonstration circuit 1964A is a 2A, bidirectional buckboost DC/DC regulator and charger/balancer, featuring the LTC®3110 boost controller. Its wide voltage range both in capacitor/battery charger mode and in system backup mode makes it well suited to a wide variety of applications using supercapacitors and batteries. ...

 

Supercap Backup Circuit Provides Reliable Uninterrupted Power

Sam Nork - Boston Design Center Manager Sep 29th 2014
Temporary backup power is a common requirement for a wide range of applications whenever the main power source is suddenly unavailable. Examples include data backup applications ranging from servers to solid-state drives, power fail alarms in industrial or medical applications, and a host of other “dying gasp” functions ...

 

LT3796 SEPIC Sealed Lead Acid (SLA) Battery Charger

Sep 23rd 2014
The LT®3796/LT3796-1 are DC/DC controllers designed to regulate a constant-current or constant-voltage and are ideal for driving LEDs. The fixed frequency and current mode architecture result in stable operation over a wide range of supply and output voltages. Two ground referred voltage FB pins serve as the input for ...

 

LTM8052 36VIN, 3.3VOUT Step-Down CVCC Converter

Sep 23rd 2014
The LTM®8052/LTM8052A is a 36VIN, 5A, 2-quadrant constant-voltage, constant-current (CVCC) step-down μModule® regulator. Included in the package are the switching controller, power switches, inductor and support components. Operating over an input voltage range of 6V to 36V, the LTM8052/LTM8052A supports an output ...

 

LTM8052 36VIN, LTM8052 Charges Two 2.5V Series Supercapacitors at 5.6A

Sep 23rd 2014
The LTM®8052/LTM8052A is a 36VIN, 5A, 2-quadrant constant-voltage, constant-current (CVCC) step-down μModule® regulator. Included in the package are the switching controller, power switches, inductor and support components. Operating over an input voltage range of 6V to 36V, the LTM8052/LTM8052A supports an output ...

 

LTM8052 36VIN, –5VOUT Negative CVCC Converter

Sep 23rd 2014
The LTM®8052/LTM8052A is a 36VIN, 5A, 2-quadrant constant-voltage, constant-current (CVCC) step-down μModule® regulator. Included in the package are the switching controller, power switches, inductor and support components. Operating over an input voltage range of 6V to 36V, the LTM8052/LTM8052A supports an output ...

 

LTM8052 36VIN, 12VOUT Step-Down CVCC Converter

Sep 23rd 2014
The LTM®8052/LTM8052A is a 36VIN, 5A, 2-quadrant constant-voltage, constant-current (CVCC) step-down μModule® regulator. Included in the package are the switching controller, power switches, inductor and support components. Operating over an input voltage range of 6V to 36V, the LTM8052/LTM8052A supports an output ...

 

LTM8052 Stack Two LTM8052s to Charge and Actively Balance Supercapacitors (or Batteries)

Sep 23rd 2014
The LTM®8052/LTM8052A is a 36VIN, 5A, 2-quadrant constant-voltage, constant-current (CVCC) step-down μModule® regulator. Included in the package are the switching controller, power switches, inductor and support components. Operating over an input voltage range of 6V to 36V, the LTM8052/LTM8052A supports an output ...

 

Two LTM8052As Used to Regulate Positive or Negative Voltage (and Current) Across a Peltier Device

Sep 23rd 2014
The LTM®8052/LTM8052A is a 36VIN, 5A, 2-quadrant constant-voltage, constant-current (CVCC) step-down μModule® regulator. Included in the package are the switching controller, power switches, inductor and support components. Operating over an input voltage range of 6V to 36V, the LTM8052/LTM8052A supports an output ...

 

LT3796 SEPIC LED Driver with 100:1 Analog Dimming

Aug 25th 2014
The LT®3796/LT3796-1 are DC/DC controllers designed to regulate a constant-current or constant-voltage and are ideal for driving LEDs. The fixed frequency and current mode architecture result in stable operation over a wide range of supply and output voltages. Two ground referred voltage FB pins serve as the input for ...

 

LTC3350 25V to 35V, 6.4A Supercapacitor Charger with 2A Input Current Limit and 28V, 50W Backup Mode

Aug 8th 2014
The LTC®3350 is a backup power controller that can charge and monitor a series stack of one to four supercapacitors. The LTC3350’s synchronous step-down controller drives N‑channel MOSFETs for constant current/constant voltage charging with programmable input current limit. In addition, the step-down converter ...

 

LTC3350 11V to 20V, 5.3A LiFePO4 Battery Charger with 4.6A Input Current Limit and 12V, 48W Backup Mode

Aug 8th 2014
The LTC®3350 is a backup power controller that can charge and monitor a series stack of one to four supercapacitors. The LTC3350’s synchronous step-down controller drives N‑channel MOSFETs for constant current/constant voltage charging with programmable input current limit. In addition, the step-down converter ...

 

LTC3350 11V to 20V, 16A Supercapacitor Charger with 6.4A Input Current Limit and 10V, 60W Backup Mode

Aug 8th 2014
The LTC®3350 is a backup power controller that can charge and monitor a series stack of one to four supercapacitors. The LTC3350’s synchronous step-down controller drives N‑channel MOSFETs for constant current/constant voltage charging with programmable input current limit. In addition, the step-down converter ...

 

LTC3350 11V to 20V, 4A Supercapacitor Charger with 2A Input Current Limit and 5V, 2A Backup Mode

Aug 8th 2014
The LTC®3350 is a backup power controller that can charge and monitor a series stack of one to four supercapacitors. The LTC3350’s synchronous step-down controller drives N‑channel MOSFETs for constant current/constant voltage charging with programmable input current limit. In addition, the step-down converter ...

 

LTC3350 11V to 35V, 4A Supercapacitor Charger with 2A Input Current Limit and 10V, 1A Backup Mode

Aug 8th 2014
The LTC®3350 is a backup power controller that can charge and monitor a series stack of one to four supercapacitors. The LTC3350’s synchronous step-down controller drives N‑channel MOSFETs for constant current/constant voltage charging with programmable input current limit. In addition, the step-down converter ...

 

LTC3350 11V to 15V, 2.3A Zeta-SEPIC High Voltage Capacitor Charger with 2A Input Current Limit and 10V, 25W Backup Mode

Aug 8th 2014
The LTC®3350 is a backup power controller that can charge and monitor a series stack of one to four supercapacitors. The LTC3350’s synchronous step-down controller drives N‑channel MOSFETs for constant current/constant voltage charging with programmable input current limit. In addition, the step-down converter ...

 

LTC3350 4.8V to 12V, 10A Supercapacitor Charger with 6.4A Input Current Limit and 5V, 30W Backup Mode

Aug 8th 2014
The LTC®3350 is a backup power controller that can charge and monitor a series stack of one to four supercapacitors. The LTC3350’s synchronous step-down controller drives N‑channel MOSFETs for constant current/constant voltage charging with programmable input current limit. In addition, the step-down converter ...

 

LTC3350 12V PCle Backup Controller

Aug 8th 2014
The LTC®3350 is a backup power controller that can charge and monitor a series stack of one to four supercapacitors. The LTC3350’s synchronous step-down controller drives N‑channel MOSFETs for constant current/constant voltage charging with programmable input current limit. In addition, the step-down converter ...

 

LTC3225 5V Supercapacitor Back-Up Supply

Aug 7th 2014
The LTC3225/LTC3225-1 are programmable supercapacitor chargers designed to charge two supercapacitors in series to a selectable fixed output voltage (4.8V/5.3V for the LTC3225 and 4V/4.5V for the LTC3225-1) from input supplies as low as 2.8V to 5.5V. Automatic cell balancing prevents overvoltage damage to either supercapacitor. ...

 

10Amp Backup Power Controller IC Provides Uninterrupted Power & Charges/Monitors 1 to 4 Supercapacitor Series Stacks

May 19th 2014
MILPITAS, CA - May 19, 2014 - Linear Technology Corporation introduces the LTC3350, a supercapacitor charger and backup controller IC that includes all of the features necessary to provide a complete, standalone capacitor-based backup power solution. Many applications require reliable short-term uninterrupted power in the event ...

 

LTM8052 TechClips - Output Current Limit Protection

Walker Bai - Applications Enginneer
Willie Chan - Sr PME Power Modules May 9th 2014
The user adjustable current limit of the LTM8052 is a useful protection feature should the load become compromised due to cracked, worn or otherwise damaged wiring insulation. With a 24V input supply and current limit set at 4.8A, the thermal rise of the module stabilizes at 34°C above ambient with no forced airflow while ...

 

DC1887A - LTC3128 Demo Board | 2-Cell Supercap Charger and Balancer: 1.72Vin to 5.5Vin @up to 3A

Apr 14th 2014
Demonstration circuit 1887 is a DC/DC supercapacitor buck-boost charger and balancer converter featuring the LTC®3128. The DC1887A operates over 1.72V to 5.5V input and charges the output up to 5.5V. Also, the LTC3128 has 2% precision input current limit, which allows the circuit to operate effectively with current limited ...

 

DC2040A - LTC3355EUF Demo Board | 12V to 4V/1A Buck Regulator + SCAP Charger & Backup Boost Regulator

Mar 17th 2014
Demonstration circuit 2040A is a 12V to 4V/1A regulator with an integrated supercap charger and backup boost regulator featuring the LTC®3355EUF. The LTC3355 charges up a 3F supercapacitor from the output when the 12V input is available. When the 12V input fails, the backup boost regulator supplies the output until the energy ...

 

Complete Ride-Through DC/DC IC Provides 1A of Uninterrupted Output Current from Main Input or Single Supercapacitor Backup Supply

Mar 10th 2014
MILPITAS, CA - March 10, 2014 - Linear Technology Corporation introduces the LTC3355, a complete ride-through DC/DC system IC. The LTC3355 features a main buck regulator with a built-in boost converter for temporary backup, or ride-through, of VOUT during a sudden loss of VIN power from a single supercapacitor energy source. ...

 

LTC3355 NiMH Trickle Charger and Ride-Through Backup Supply

Mar 7th 2014
The LTC®3355 is a complete input power interrupt ridethrough DC/DC system. The part charges a supercapacitor while delivering load current to VOUT, and uses energy from the supercapacitor to provide continuous VOUT backup power when VIN power is lost. The LTC3355 contains a nonsynchronous constant frequency current mode ...

 

LTC3355 Supercapacitor Charger and Ride-Through Power Supply

Mar 7th 2014
The LTC®3355 is a complete input power interrupt ridethrough DC/DC system. The part charges a supercapacitor while delivering load current to VOUT, and uses energy from the supercapacitor to provide continuous VOUT backup power when VIN power is lost. The LTC3355 contains a nonsynchronous constant frequency current mode ...

 

LTC3355 Tantalum Capacitor Charger and Ride-Through Backup Supply

Mar 7th 2014
The LTC®3355 is a complete input power interrupt ridethrough DC/DC system. The part charges a supercapacitor while delivering load current to VOUT, and uses energy from the supercapacitor to provide continuous VOUT backup power when VIN power is lost. The LTC3355 contains a nonsynchronous constant frequency current mode ...

 

3A Buck-Boost Super Capacitor Charger Features Active Capacitor Balancing for Fast Charging

Feb 17th 2014
MILPITAS, CA - February 17, 2014 - Linear Technology Corporation introduces the LTC3128, a high efficiency, input current-limited buck-boost supercapacitor charger with active charge balancing for 1 or 2 series supercapacitors. The LTC3128 features an average input current limit that can be programmed up to 3A with +/-2% accuracy, ...

 

60V, LED Controller with Internal PWM Generator for Boost, Buck or Buck-Boost High Current LED Applications

Dec 3rd 2012
MILPITAS, CA – December 3, 2012 – Linear Technology announces the LT3761, a 60V DC/DC controller designed to operate as a constant-current source and constant-voltage regulator. Its internal PWM dimming generator makes it ideal for driving high current LEDs, but it also has features making it suitable for charging batteries ...

 

DC1772A - LT3761EMSE Demo Board I Boost LED Controller, Internal PWM Dimming, 8V to 60VIN, VOUT up to 60V

Oct 10th 2012
DC1772A is a high voltage LED controller with internal PWM dimming. It generates its own PWMOUT waveform for accurate PWM dimming with up to 25:1 brightness ratio. It accepts an input voltage from 8V to 60V (8V UVLO and 9.1V rising turn-on), and drives up to 60V of LEDs at 1A (when PVIN is less than VLED). DC1772A features ...

 

Dual Supercapacitor Backup Power Supply, 0.5V to 5V

Jul 30th 2012
The LTC3122 is a synchronous step-up DC/DC converter with true output disconnect and inrush current limiting. The 2.5A current limit along with the ability to program output voltages up to 15V makes the LTC3122 well suited for a variety of demanding applications. Once started, operation will continue with inputs down to 500mV, ...

 

DC1706A - LT3796EFE Demo Board I 100V LED Controller with Current Monitor; 8V to 85VIN, up to 85VOUT@0.4A

Jun 6th 2012
DC1706A is a 100V LED controller with an input current monitor. It is a single switch boost LED driver with LED+ to GND short circuit protection. It accepts an input voltage from 8V to 100V (7.5V UVLO and 8.7V turn-on), and drives up to 85V of LEDs at 400mA (when PVIN is less than VLED). DC1706A features both PWM and analog ...

 

100V, Constant-Current & Constant-Voltage Controller with Input & Output Current Sense

Apr 17th 2012
MILPITAS, CA – April 17, 2012 – Linear Technology announces the LT3796, a 100V, high-side current sense DC/DC controller designed to regulate a constant-current or constant-voltage that is ideal for driving high brightness (HB) LEDs. Its 6V to 100V input voltage range supports a wide variety of applications, including automotive, ...

 

LT3796 Solar Panel Driven SLA Battery Charger with Maximum Power Point Tracking

Apr 3rd 2012
The LT®3796/LT3796-1 are DC/DC controllers designed to regulate a constant-current or constant-voltage and are ideal for driving LEDs. The fixed frequency and current mode architecture result in stable operation over a wide range of supply and output voltages. Two ground referred voltage FB pins serve as the input for ...

 

LT3796 SEPIC Converter with RWIRE Compensation and Output Current Limit

Apr 3rd 2012
The LT®3796/LT3796-1 are DC/DC controllers designed to regulate a constant-current or constant-voltage and are ideal for driving LEDs. The fixed frequency and current mode architecture result in stable operation over a wide range of supply and output voltages. Two ground referred voltage FB pins serve as the input for ...

 

LT3796 28VIN to 28V SuperCap Charger with Input Current Limit and Charge Done Flag

Apr 3rd 2012
The LT®3796/LT3796-1 are DC/DC controllers designed to regulate a constant-current or constant-voltage and are ideal for driving LEDs. The fixed frequency and current mode architecture result in stable operation over a wide range of supply and output voltages. Two ground referred voltage FB pins serve as the input for ...

 

36V, 5A μModule Regulator Protects Input Supplies from Overcurrent Conditions & Supports Asymmetric Power Sharing

Mar 15th 2012
MILPITAS, CA – March 15, 2012 Linear Technology announces the LTM8026, a 36V input, 5A step-down µModule® regulator with an adjustable and precise (+/-10%) accurate current limit. The current limit enables designers to set the maximum amount of power drawn from the supply, preventing input voltage droop caused by overcurrent ...

 

DC1583A-B - LTC3625-1EDE Demo Board | VIN = 2.7V to 5.5V, VOUT= 4.5V or 4.0V @ IOUT up to 1A

Jan 18th 2012
Demonstration circuit 1583A is a 1A high effi ciency 2- Cell supercapacitor charger with automatic cell balancing featuring the LTC3625/LTC3625-1. The LTC3625/LTC3625-1 are step-up/step-down programmable supercapacitor chargers designed to charge two supercapacitors in series to a fi xed voltage of 5.3V or 4.8V (LTC3625), or ...

 

36VIN, ±5A Source/Sink Step-Down uModule Regulator Features Adjustable Output Current Limit

Oct 11th 2011
MILPITAS, CA – October 11, 2011 – Linear Technology introduces the LTM8052, a 36V input constant frequency step-down µModule® regulator with an adjustable output current limit up to 5A. The adjustable current limit helps system designers set the maximum power delivered to a load, minimizing the output rating of the upstream ...

 

DC1735A - LTC3226EUD Demo Board u 2-Cell Supercap Charger with Backup PowerPath Controller

Aug 31st 2011
DC1735A - Demo Board for:LTC3226 - 2-Cell Supercapacitor Charger with Backup PowerPath Controller ...

 

150mA Supercapacitor Charger with PowerPath Control & Auto Cell Balancing in 9mm2

Jul 26th 2011
MILPITAS, CA – July 26, 2011 – Linear Technology Corporation introduces the LTC3226, an inductorless supercapacitor charger with backup PowerPath™ controller for Li-ion or other low-voltage system rails in applications that require short term backup power. The device employs a low-noise dual mode (1x/2x) charge-pump architecture ...

 

LTC3226 Li-Ion Backup Supply

Jul 8th 2011
The LTC3226 is a 2-cell series supercapacitor charger with a backup PowerPath controller. It includes a charge pump supercapacitor charger with programmable output voltage, a low dropout regulator, and a power-fail comparator for switching between normal and backup modes. The constant input current supercapacitor charger is ...

 

DC1583A-A - LTC3625EDE Demo Board | VIN = 2.7V to 5.5V, VOUT= 5.3V / 4.8V @IOUT up to 1A

Nov 15th 2010
DC1583A-A - Demo Board for:LTC3625 - 1A High Efficiency 2-Cell Supercapacitor Charger with Automatic Cell Balancing ...

 

Programmable 1A Buck-Boost 2-Cell Supercap Chargers with Automatic Cell Balancing in Compact 12mm2 Package

Aug 10th 2010
MILPITAS, CA - August 10, 2010 - Linear Technology Corporation introduces the LTC3625 and LTC3625-1, the latest in a family of 2-cell supercapacitor chargers for addressing high peak power, data backup and "dying gasp" needs in portable and data storage applications.  The LTC3625/LTC3625-1's high efficiency switchmode topology ...

 

LTC4425 2A Linear Supercapacitor Charger with Current-Limited Ideal Diode - Video Product Brief

Steve Knoth - Senior Product Marketing Engineer Jul 19th 2010
The LTC4425 is a constant-current/constant-voltage linear charger designed to charge a 2-cell supercap stack from either a Li-Ion/Polymer battery, a USB port, or a 2.7V to 5.5V current-limited supply. The part operates as an ideal diode with an extremely low 50mΩ on-resistance making it suitable for high peak-power/low average ...

 

DC1451A - LTC3127EDD Demo Board | Prog Average Input Current Limit, 1.2MHz, 1.8V ≤ VIN ≤ 5.5V, Vout = 3.8V @ 2A Pulsed

Jun 25th 2010
Demonstration circuit 1451A is a Buck-Boost DC/DC converter featuring the LTC3127EDD and is ideally suited for pulsed load applications where the input current needs to be limited. Demonstration circuit 1451A is configured for 1.0A maximum input current limit and can handle pulsed load currents of up to 2A, with duty cycles ...

 

DC1589A - LTC4425EDD Demo Board | Linear SuperCap Charger with Current-Limited Ideal Diode and V/I Monitor

May 5th 2010
DC1589A - Demo Board for:LTC4425 - Linear SuperCap Charger with Current-Limited Ideal Diode and V/I Monitor ...

 

Programmable 2A 2-Cell Supercap Charger with Automatic Cell Balancing in a Compact 9mm2 Package

Mar 4th 2010
MILPITAS, CA — March 4, 2010 — Linear Technology Corporation introduces the LTC4425, the latest in a family of 2-cell supercapacitor chargers for addressing high peak power, data backup and “dying gasp” needs in portable and data storage applications. The device employs a linear CC-CV architecture with thermal limiting ...

 

LTC4425 Redundant USB & 3xAA High Peak Power Battery Supplies using Two Supercapacitors

Mar 3rd 2010
The LTC4425 is a constant-current/constant-voltage linear charger designed to charge a 2-cell supercap stack from either a Li-Ion/Polymer battery, a USB port, or a 2.7V to 5.5V current-limited supply. The part operates as an ideal diode with an extremely low 50mΩ on-resistance making it suitable for high peak-power/low ...

 

LTC4425 USB to High Peak Power 3.3V Supply Using Two Supercapacitors

Mar 3rd 2010
The LTC4425 is a constant-current/constant-voltage linear charger designed to charge a 2-cell supercap stack from either a Li-Ion/Polymer battery, a USB port, or a 2.7V to 5.5V current-limited supply. The part operates as an ideal diode with an extremely low 50mΩ on-resistance making it suitable for high peak-power/low ...

 

LTC4425 Li-Ion High Peak Power Battery Buffer Using Two Supercapacitors

Mar 3rd 2010
The LTC4425 is a constant-current/constant-voltage linear charger designed to charge a 2-cell supercap stack from either a Li-Ion/Polymer battery, a USB port, or a 2.7V to 5.5V current-limited supply. The part operates as an ideal diode with an extremely low 50mΩ on-resistance making it suitable for high peak-power/low ...

 

LTC4425 3 x AA Alkaline to High Peak Power 3.3V at 2A Using Two Supercapacitors

Mar 3rd 2010
The LTC4425 is a constant-current/constant-voltage linear charger designed to charge a 2-cell supercap stack from either a Li-Ion/Polymer battery, a USB port, or a 2.7V to 5.5V current-limited supply. The part operates as an ideal diode with an extremely low 50mΩ on-resistance making it suitable for high peak-power/low ...

 

4% Accurate Programmable Average Input Current Limit Buck-Boost DC/DC Converter Delivers Maximum Current from Limited Power Sources for High Peak Power Applications

Feb 18th 2010
MILPITAS, CA - February 18, 2010 - Linear Technology announces the LTC3127, a 96% efficient, synchronous buck-boost converter that delivers up to 1A of output current to a regulated output voltage with inputs above, below or equal to the output. The LTC3127 features a ±4% accurate programmable average input current limit with ...

 

DC1570A-B - LT3663EDCB-5 Demo Board | Adj Current Limit, 7.5V ≤ VIN ≤ 36/60V, Vout = 5V @ 0.6A to 1.2A

Nov 24th 2009
Demonstration Circuit 1570 is a 1.0MHz current mode step-down switching regulator with programmable output current limit. The current limit accurately controls the system power dissipation and reduces the size of the power path components. The demo board operates with a 7.5V to 36V (60 transients) input voltage range and provides ...

 

DC1570A-A - LT3663EDCB-3.3 Demo Board | Adj Current Limit, 7.5V ≤ VIN ≤ 36/60V, Vout = 3.3V @ 0.6A to 1.2A

Nov 24th 2009
Demonstration Circuit 1570 is a 1.0MHz current mode step-down switching regulator with programmable output current limit. The current limit accurately controls the system power dissipation and reduces the size of the power path components. The demo board operates with a 7.5V to 36V (60 transients) input voltage range and provides ...