SC1437 - Precision Voltage Detector With Programmable Trigger Voltage & Timer Delay
SEMTECH
General Description
The SC1437 is a battery over voltage detection circuit with driver for external MOSFET.
The trip point is adjustable with an external resistor divider connected to the SENSE pin.
The trip point is preset to a nominal trip voltage of 4.2V if no external divider is used.
Key Features
Low quiescent current, less than 10µA typical Input voltage range 1.8V to 6.8V Adjustable or preset voltage trip point Selectable timer delays of 0, 40 and 80ms without use of external resistor ! SOT-23 5 lead package ! Accuracy is 2% over specified temperature range ! 30V maximum rating ! ! ! !.
Full PDF Text Transcription for SC1437 (Reference)
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SC1437. For precise diagrams, and layout, please refer to the original PDF.
Precision Voltage Detector With Programmable Trigger Voltage & Timer Delay POWER MANAGEMENT Description The SC1437 is a battery over voltage detection circuit with driver...
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ion The SC1437 is a battery over voltage detection circuit with driver for external MOSFET. The trip point is adjustable with an external resistor divider connected to the SENSE pin. The trip point is preset to a nominal trip voltage of 4.2V if no external divider is used. Other internal trip voltages of 4.5V and 4.7V are available, specified by different part numbers. An internal delay, with two selectable times or bypass, is on-board to suppress accidental over voltage conditions due to glitches on the battery supply voltage, V+. The delay is externally adjustable by pulling the SEL pin high, low, or left floating.
SC1437 Datasheet
