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Reliability Data
Product Selector Card
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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
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.
4x3 DFN-12,MS-10
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LTC4216CDE#PBF | DFN | 12 | C | $2.77 | $1.95 |
| LTC4216CDE#TRPBF | DFN | 12 | C | $2.05 | |
| LTC4216CMS#PBF | MSOP | 10 | C | $2.59 | $1.85 |
| LTC4216CMS#TRPBF | MSOP | 10 | C | $1.91 | |
| LTC4216IDE#PBF | DFN | 12 | I | $3.21 | $2.25 |
| LTC4216IDE#TRPBF | DFN | 12 | I | $2.35 | |
| LTC4216IMS#PBF | MSOP | 10 | I | $2.95 | $2.10 |
| LTC4216IMS#TRPBF | MSOP | 10 | I | $2.16 | |
| LTC4216CDE | DFN | 12 | C | $5.54 | $3.90 |
| LTC4216CDE#TR | DFN | 12 | C | $4.10 | |
| LTC4216CMS | MSOP | 10 | C | $5.18 | $3.70 |
| LTC4216CMS#TR | MSOP | 10 | C | $3.82 | |
| LTC4216IDE | DFN | 12 | I | $6.42 | $4.50 |
| LTC4216IDE#TR | DFN | 12 | I | $4.70 | |
| LTC4216IMS | MSOP | 10 | I | $5.90 | $4.20 |
| LTC4216IMS#TR | MSOP | 10 | I | $4.32 |
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.