LTC4216 - Ultralow Voltage Hot Swap Controller
Features
- Allows Safe Board Insertion and Removal from a Live Backplane
- Controls Load Voltages from 0V to 6V
- Fast Response Limits Peak Fault Current
- Adjustable Analog Current Limit
- Adjustable Soft-Start with Inrush Current Limiting
- Adjustable Response Time for Overcurrent Protection
- Low Circuit Breaker Trip Threshold: 25mV
- No External Gate Capacitor Required
- Internal Charge Pump for N-Channel MOSFET
- Adjustable Output Power-Up Rate
- RESET and FAULT Output
- 10-Lead MSOP and 12-Lead (4mm × 3mm) DFN Packages
AEC-Q100 data available for specific packages
Typical Application
Description
The LTC®4216 is a positive low voltage Hot Swap™ controller that allows a board to be safely inserted and removed from a live backplane. It controls load voltages ranging from 0V to 6V and isolates a severe fault with instantaneous analog current limiting.
An internal high side switch driver controls the gate of an external N-channel MOSFET. An adjustable soft-start limits the rate of change of the inrush current at start-up for a large load capacitor. Together with an analog current limit amplifier, an electronic circuit breaker with adjustable response time provides dual level overcurrent protection. No external gate capacitor is required for the analog current limit loop compensation.
The FB pin monitors the output supply voltage and signals the RESET output pin. An ON pin provides on/off control and a FAULT pin indicates the fault status. The LTC4216 is available in the 10-lead MSOP and 12-lead (4mm × 3mm) DFN 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 |
|---|---|---|---|---|---|
| LTC4216CDE#PBF | 4x3 DFN-12 | DE/UE | C | 05-08-1695 | Yes |
| LTC4216CDE#TRPBF | 4x3 DFN-12 | DE/UE | C | 05-08-1695 | Yes |
| LTC4216CMS#PBF | MS-10 | MS | C | 05-08-1661 | Yes |
| LTC4216CMS#TRPBF | MS-10 | MS | C | 05-08-1661 | Yes |
| LTC4216IDE#PBF | 4x3 DFN-12 | DE/UE | I | 05-08-1695 | Yes |
| LTC4216IDE#TRPBF | 4x3 DFN-12 | DE/UE | I | 05-08-1695 | Yes |
| LTC4216IMS#PBF | MS-10 | MS | I | 05-08-1661 | Yes |
| LTC4216IMS#TRPBF | MS-10 | MS | I | 05-08-1661 | Yes |
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 | |
|---|---|---|---|---|---|---|
| LTC4216CDE#PBF | 4x3 DFN-12 | C | $2.77 | $1.95 | Yes | |
| LTC4216CDE#TRPBF | 4x3 DFN-12 | C | $2.05 | Yes | ||
| LTC4216CMS#PBF | MS-10 | C | $2.59 | $1.85 | Yes | |
| LTC4216CMS#TRPBF | MS-10 | C | $1.91 | Yes | ||
| LTC4216IDE#PBF | 4x3 DFN-12 | I | $3.21 | $2.25 | Yes | |
| LTC4216IDE#TRPBF | 4x3 DFN-12 | I | $2.35 | Yes | ||
| LTC4216IMS#PBF | MS-10 | I | $2.95 | $2.10 | Yes | |
| LTC4216IMS#TRPBF | MS-10 | I | $2.16 | Yes | ||
| Buy Now • Request Samples | ||||||
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.Click here to view our complete list of demo boards
Designed for Automotive and Transportation Applications
AEC-Q100 data is available for these specific part numbers. Please contact your local sales representative for more information regarding reliability reports 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 | |
|---|---|---|---|---|---|---|
| LTC4216IMS#PBF | MS-10 | I | $2.95 | $2.10 | Yes | |
| LTC4216IMS#TRPBF | MS-10 | I | $2.16 | Yes | ||
| Buy Now • Request Samples | ||||||
Applications
- Electronic Circuit Breaker
- Live Board Insertion and Removal
- Industrial High Side Switch/Circuit Breaker
- Optical Networking
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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
Models for the following parts are available in LTspice:
LTC4216
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
