Datasheet
Design Note
Reliability Data
Product Selector Card
LT Journal
Press Release
cad_symbol
Features
- Fast 1µs Response Circuit Breaker
- 3 Selectable Circuit Breaker Thresholds
- No Sense Resistor Required
- Dual Level Overcurrent Fault Protection
- Controls Load Voltages from 0V to 6V
- High Side Drive for External N-Channel FET
- Undervoltage Lockout
- READY Pin Signals When Circuit Breaker Armed
- Small Plastic (3mm x 2mm) DFN Package
Typical Application
Description
The LTC®4213 is an Electronic Circuit Breaker. An overcurrent circuit breaker senses the voltage across the drain and source terminals of an external N-channel MOSFET with no need for a sense resistor. The advantages are a lower cost and reduced voltage and power loss in the switch path. An internal high-side driver controls the external MOSFET gate.Two integrated comparators provide dual level overcurrent protection over the bias supply to ground common mode range. The slow comparator has 16µs response while the fast comparator trips in 1µs. The circuit breaker has three selectable trip thresholds: 25mV, 50mV and 100mV. An ON pin controls the ON/OFF and resets circuit breaker faults. READY signals the MOSFET is conducting and the circuit breaker is armed. The LTC4213 operates from VCC = 2.3V to 6V.
3x2 DFN-8
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LTC4213CDDB#PBF | DFN | 8 | C | $2.23 | |
| LTC4213CDDB#TRMPBF | DFN | 8 | C | $2.23 | $1.58 |
| LTC4213CDDB#TRPBF | DFN | 8 | C | $2.23 | $1.56 |
| LTC4213IDDB#PBF | DFN | 8 | I | $2.57 | |
| LTC4213IDDB#TRMPBF | DFN | 8 | I | $2.57 | $1.88 |
| LTC4213IDDB#TRPBF | DFN | 8 | I | $2.66 | $1.86 |
| LTC4213CDDB | DFN | 8 | C | $4.46 | |
| LTC4213CDDB#TR | DFN | 8 | C | $4.46 | $3.12 |
| LTC4213IDDB | DFN | 8 | I | $5.14 | |
| LTC4213IDDB#TR | DFN | 8 | I | $5.32 | $3.72 |
| LTC4213CDDB#TRM | DFN | 8 | C | $4.46 | $3.16 |
| LTC4213IDDB#TRM | DFN | 8 | I | $5.14 | $3.76 |
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 |
|---|---|---|---|
| DC872A | LTC4213CDD Electronic Circuit Breaker | $50.00 |