M51957BFP

VOLTAGE DETECTING, SYSTEM RESETTING IC

Few external parts

Large delay time with a capacitor of small capacitance (td 100ms, at 0.33uF)

(M51957, M51958)

Low threshold operating voltage (Supply voltage to keep low-state at low supply voltage)

Wide supply voltage range ............. 2 - 17V

Sudden change in power supply has minimal effect on the ICs

Wide operation range of detecting input pin .. Narrower ranges of 0.3V - VCC or 0.3V - 7v (Input voltage detecting type)

Suitable for high supply voltage circuit with simple circuit structure (M51957B, M51958B)

Permits easy configuration of circuit for protection against reverse cnnection or surges. (M51957B, M51958B)

Wide application rangge

SIL package of the same height as DIP (5-pin SIP)

Applications

Reset circuit of Pch, Nch, CMOS,

microcomputer

Reset of logic circuit

Battery check circuit

Switching circuit back-up voltage

Level detecting circuit

Waveform shaping circuit

Delay waveform generating cicuit

DC -DC converter

Over voltage protection circuit