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LTC4213

Linear Technology
Part Number LTC4213
Manufacturer Linear Technology
Description Electronic Circuit Breaker
Published Sep 21, 2009
Detailed Description www.DataSheet4U.com LTC4213 No RSENSE™ Electronic Circuit Breaker DESCRIPTIO U 2µs/DIV 4213 TA01b FEATURES ■ ■ ■ ■ ■ ■...
Datasheet PDF File LTC4213 PDF File

LTC4213
LTC4213

Overview
www.
DataSheet4U.
com LTC4213 No RSENSE™ Electronic Circuit Breaker DESCRIPTIO U 2µs/DIV 4213 TA01b 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 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.
, LTC and LT are registered trademarks of Linear Technology Corporation.
No RSENSE is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
U APPLICATIO S ■ ■ ■ Electronic Circuit Breaker High-Side Switch Hot Board Insertion TYPICAL APPLICATIO SI4864DY 1.
25V Electronic Circuit Breaker VIN 1.
25V VOUT 1.
25V 3.
5A VBIAS 2.
3V TO 6V VCC SENSEP GATE SENSEN VBIAS LTC4213 10k READY OFF ON ON GND ISEL U Severe Overload Response IOUT (50A/DIV) VOUT (1V/DIV) VGATE (5V/DIV) 4213 TA01 VIN (1V/DIV) 4213f 1 www.
DataSheet4U.
com LTC4213 ABSOLUTE (Note 1) AXI U RATI GS U W U PACKAGE/ORDER I FOR ATIO TOP VIEW READY 1 ON 2 ISEL 3 GND 4 9 8 VCC 7 SENSEP 6 SENSEN 5 GATE ...


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