LTC4416/LTC4416-1 - 36V, Low Loss Dual PowerPath Controllers for Large PFETs

Features

  • Designed Specifically to Drive Large and Small QG PFETs
  • Very Low Loss Replacement for Power Supply OR’ing Diodes
  • Wide Operating Voltage Range: 3.6V to 36V
  • –40°C to 125°C Operating Temperature Range
  • Reverse Battery Protection
  • Automatic Switching Between DC Sources
  • Low Quiescent Current: 35μA per Channel
  • Load Current Sharing
  • MOSFET Gate Protection Clamp
  • Precision Input Control Comparators for Setting Switchover Threshold Points
  • Open-Drain Feedback Points for Customer Specified Hysteresis Control
  • Minimal External Components
  • Space Saving 10-Lead MSOP Package
Designed for Automotive and Transportation Applications
AEC-Q100 generic family data available for specific packages


Typical Application

LTC4416 Typical Application
LTC4416 Typical Application
LTC4416 Typical Application

Description

The LTC4416/LTC4416-1 control two sets of external P-channel MOSFETs to create two near ideal diode functions for power switchover circuits. This permits highly effi cient OR’ing of multiple power sources for extended battery life and low self heating. When conducting, the voltage drop across the MOSFET is typically 25mV. For applications with a wall adapter or other auxiliary power source, the load is automatically disconnected from the battery when the auxiliary source is connected.

The LTC4416 integrates two interconnected PowerPath controllers with soft switchover control. The “soft-off” switchover permits the users to transfer between two dissimilar voltages without excessive voltage undershoot (or VDROOP) in the output supply. The LTC4416/LTC4416-1 also contain a “fast-on” feature that dramatically increases gate drive current when the forward input voltage exceeds 25mV. The LTC4416 “fast off” feature is engaged when the sense voltage exceeds the input voltage by 25mV. The LTC4416-1 enables the fast off under the same conditions and when the other external P-channel device is selected using the enable pins.

The wide operating supply range supports operation from one to eight Li-Ion cells in series. The low quiescent current (35μA per channel) is independent of the load current. The gate driver includes an internal voltage clamp for MOSFET protection.

The LTC4416/LTC4416-1 are available in low profi le 10-lead MSOP packages.

Packaging

CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
Drawing
RoHS
LTC4416EMS-1#PBF MS-10 MS E 05-08-1661 Yes
LTC4416EMS-1#TRPBF MS-10 MS E 05-08-1661 Yes
LTC4416EMS#PBF MS-10 MS E 05-08-1661 Yes
LTC4416EMS#TRPBF MS-10 MS E 05-08-1661 Yes
LTC4416IMS-1#PBF MS-10 MS I 05-08-1661 Yes
LTC4416IMS-1#TRPBF MS-10 MS I 05-08-1661 Yes
LTC4416IMS#PBF MS-10 MS I 05-08-1661 Yes
LTC4416IMS#TRPBF MS-10 MS I 05-08-1661 Yes


LTC4416 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
(1-99)
Price
(1k)*
RoHS
LTC4416EMS-1#PBF MS-10 E $3.78 $2.45 Yes
LTC4416EMS-1#TRPBF MS-10 E $2.51 Yes
LTC4416EMS#PBF MS-10 E $3.78 $2.45 Yes
LTC4416EMS#TRPBF MS-10 E $2.51 Yes
LTC4416IMS-1#PBF MS-10 I $4.56 $2.95 Yes
LTC4416IMS-1#TRPBF MS-10 I $3.01 Yes
LTC4416IMS#PBF MS-10 I $4.56 $2.95 Yes
LTC4416IMS#TRPBF MS-10 I $3.01 Yes
Buy NowRequest Samples
* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC1059A LTC4416EMS Demo Board | Dual PowerPath Controller $100.00
Buy Now
Click here to view our complete list of demo boards

Designed for Automotive and Transportation Applications

Please contact your local sales representative for more information regarding reliability reports and AEC-Q100 data or to inquire about parts that are not included. For more information, view our Automotive and Transportation page

Part Number Package Temp Price
(1-99)
Price
(1k)*
RoHS
LTC4416IMS-1#PBF MS-10 I $4.56 $2.95 Yes
LTC4416IMS-1#TRPBF MS-10 I $3.01 Yes
LTC4416IMS#PBF MS-10 I $4.56 $2.95 Yes
LTC4416IMS#TRPBF MS-10 I $3.01 Yes
Buy NowRequest Samples
* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Applications

  • High Current PowerPath Switch
  • Industrial and Automotive Applications
  • Uninterruptible Power Supplies
  • Logic Controlled Power Switch
  • Battery Backup System
  • Emergency Systems with Battery Backups

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Design Tools

LTspice

LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice

To launch a ready to run LTspice demonstration circuit for this part:

  • Step 1: If you have not installed LTspice on this computer, download and install LTspice
  • Step 2: Once LTspice is installed, click on the link(s) below to launch the simulation
  • Step 3: If LTspice does not automatically open after clicking the link above, you can instead run the simulation by right clicking on the link and selecting "Save Target As." After saving the file to your computer, start LTspice and open the demonstration circuit by selecting 'Open' from the 'File' menu

To explore other ready to run LTspice demonstration circuits, please visit our Demo Circuits Collection.

Models for the following parts are available in LTspice:
LTC4416
LTC4416-1

Technical Support