(Hong Kong)
Product Summary
The LTC1153IS8#TR is an electronic circuit breaker which drives a low cost N-channel MOSFET to interrupt power to a sensitive electronic load in the event of an over-current condition. The breaker remains tripped for a period of time set by an external timing capacitor and then is automatically reset. This cycle continues until the over-current condition is removed, protecting both the sensitive load and the MOSFET switch. The trip current, trip delay time and auto-reset period are programmable over a wide range to accommodate a variety of load impedances. An active high shutdown input is also provided and interfaces directly to a PTC thermistor for thermal circuit breaking. An open-drain output is provided to report breaker status to the μP. The LTC1153IS8#TR is available in 8-pin SOIC package. The LTC1153IS8#TR’s applications include: Power Bus Circuit Breaker, SCSI Termination Power Protection, Regulator Over-Current Protection, Battery Short-Circuit Protection, DC Motor Stall Protection and Sensitive System Power Interrupt.
Parametrics
LTC1153IS8#TR absolute maximum ratings: (1)Supply Voltage: 22V; (2)Input Voltage: (VS + 0.3V) to (GND – 0.3V); (3)Timing Capacitor Voltage: (VS + 0.3V) to (GND – 0.3V); (4)Gate Voltage: (VS + 24V) to (GND – 0.3V); (5)Status Output Voltage: 15V; (6)Current (Any Pin): 50mA; (7)Storage Temperature Range: –65℃ to 150℃; (8)Lead Temperature (Soldering, 10 sec.): 300℃.
Features
LTC1153IS8#TR features: (1)Programmable Trip Delay: 15μs to >100ms; (2)Programmable Trip Current: 1mA to >20A; (3)Programmbale Auto-Reset Time: 1ms to >10 sec.; (4)4.5V to 18V Supply Range; (5)Drives Low RDS(ON) N-Channel MOSFETs; (6)Status Output Indicates Fault Condition; (7)Thermal Trip with PTC Thermistor; (8)8μA IQ in Standby Mode; (9)No External Charge Pump Capacitors; (10)Available in 8-Pin SOIC.
Diagrams
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 LTC1153IS8#TR |
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IC CIRCUIT BRKR ELEC AUTO 8SOIC |
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LTC1153IS8#TRPBF |
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IC ELECTR CIRCUIT BREAKER 8-SOIC |
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