DESCRIPTION

The MC33164 and the MC34164 are micropower undervoltage sensing circuits ideal for use in low-power battery applications, computer peripheral, consumer, appliance and automotive equipment. The device offers a 1.2V temperature compensated bandgap reference, a precision comparator with hysteresis and a high current open collector output. This device operates from 1 to 10V input supply and drains <10µA in the non-fault condition and trip level of 4.33V.

Both devices are available in an 8-pin, 150mil SOIC package and a plastic TO-92 package. The MC33164 is rated from -40°C to 85°C and the MC34164 from 0°C to 70°C.

KEY FEATURES

■ LOW STANDBY CURRENT

■ TEMPERATURE COMPENSATED BANDGAP REFERENCE

■ PRECISION COMPARATOR WITH 50MV OF HYSTERESIS

■ CLAMP DIODE FOR DISCHARGING DELAY CAPACITOR

■ OUTPUT CURRENT SINK CAPABILITY FROM 7 TO 50MA

■ 1-10V INPUT SUPPLY RANGE

■ AVAILABLE IN 150MIL, 8-PIN SOIC AND PLASTIC TO-92 PACKAGES

■ PIN-FOR-PIN COMPATIBLE WITH MC33164/34164

APPLICATIONS

■ µPOWER RESET GENERATOR

■ 5V VOLTAGE MONITOR

■ BATTERY-LEVEL DETECTOR