Details, datasheet, quote on part number: LTC1153
PartLTC1153
CategoryPower Management => Power Distribution/Switches => Circuit Breakers
TitleCircuit Breakers
DescriptionLTC1153, Auto-reset Electronic Circuit Breaker
CompanyLinear Technology Corporation
DatasheetDownload LTC1153 datasheet
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Features, Applications
FEATURES

Programmable Trip Delay: to >100ms Programmable Trip Current: to >20A Programmbale Auto-Reset Time: to >10 sec. to 18V Supply Range Drives Low RDS(ON) N-Channel MOSFETs Status Output Indicates Fault Condition Thermal Trip with PTC Thermistor IQ in Standby Mode No External Charge Pump Capacitors Available in 8-Pin SOIC

The LTC1153 electronic circuit breaker 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 P. The LTC1153 is available in both 8-pin DIP and 8-pin SOIC packages.

Power Bus Circuit Breaker SCSI Termination Power Protection Regulator Over-Current Protection Battery Short-Circuit Protection DC Motor Stall Protection Sensitive System Power Interrupt

5V/1A Electronic Circuit Breaker with 1ms Trip Delay, 200ms Auto-Reset Period and 70C Thermal Shutdown

ALL COMPONENTS SHOWN ARE SURFACE MOUNT. * IMS026 INTERNATIONAL MANUFACTURING SERVICE, INC. 683-9700 RL2006-100-70-30-PT1 KEYSTONE CARBON COMPANY (814) 781-1591

Current (Any Pin).................................................. 50mA Operating Temperature to 70C Storage Temperature Range................. to 150C Lead Temperature (Soldering, 10 sec.)................ 300C

Supply Voltage........................................................ 22V Input Voltage..................... (VS 0.3V) to (GND 0.3V) Timing Capacitor Voltage... (VS 0.3V) to (GND 0.3V) Gate Voltage....................... (VS 24V) to (GND 0.3V) Status Output Voltage.............................................. 15V

TOP VIEW IN 1 TIMING CAP 2 STATUS 3 GND VS DRAIN SENSE GATE SHUTDOWN

SYMBOL VS IQ VINH VINL IIN CIN VCT ICT VSDH VSDL ISD VSEN ISEN PARAMETER Supply Voltage Quiescent Current OFF Quiescent Current ON Quiescent Current ON Input High Voltage Input Low Voltage Input Current Input Capacitance Timing Capacitor Threshold Voltage Timing Capacitor Current Shutdown Input High Voltage Shutdown Input Low Voltage Shutdown Input Current Drain Sense Threshold Voltage

TOP VIEW IN 1 TIMING CAP 2 STATUS 3 GND VS DRAIN SENSE GATE SHUTDOWN

SYMBOL PARAMETER CONDITIONS = 12V ISTAT = 400A VSTAT = 5V, CGATE = 1000pF Time for VGATE + 2V Time for VGATE = 12V, CGATE = 1000pF Time for VGATE + 5V Time for VGATE + 10V tOFF Turn-OFF Time = 5V, CGATE = 1000pF Time for VGATE = 12V, CGATE = 1000pF Time for VGATE < 1V tTD Minimum Trip Delay = 5V, CGATE = 1000pF Time for VGATE = 12V, CGATE = 1000pF Time for VGATE < 1V tSD Shutdown Turn-OFF Time = 5V, CGATE = 1000pF Time for VGATE = 12V, CGATE = 1000pF Time for VGATE < 1V The q denotes specifications which apply over the operating temperature range.

Status Output Low Voltage Status Output Leakage Current Turn-ON Time

 

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