FN3182 Rev 10.00

Page 1 of 15

August 10, 2015

FN3182

Rev 10.00

August 10, 2015

ICL7665S

CMOS Micropower Over/Under Voltage Detector

DATASHEET

The ICL7665S super CMOS micropower Over/Under

voltage detector contains two low power, individually

programmable voltage detectors on a single CMOS chip.

Requiring typically 3

A for operation, the device is intended

for battery-operated systems and instruments which require

high or low voltage warnings, settable trip points, or fault

monitoring and correction. The trip points and hysteresis of

the two voltage detectors are individually programmed via

external resistors. An internal bandgap type reference

provides an accurate threshold voltage while operating from

any supply in the 1.6V to 16V range.

The ICL7665S, super programmable Over/Under voltage

detector is a direct replacement for the industry standard.

The ICL7665B offering wider operating voltage and

temperature ranges, improved threshold accuracy

(ICL7665SA), and temperature coefficient, and guaranteed

maximum supply current. All improvements are highlighted

in the electrical characteristics section. All critical

parameters are guaranteed over the entire commercial

and industrial temperature ranges.

Pinout

ICL7665S

(SOIC, PDIP)

TOP VIEW

Features

• Guaranteed 10µA maximum quiescent current

over-temperature

• Guaranteed wider operating voltage range over entire

operating temperature range

• 2% threshold accuracy (ICL7665SA)

• Dual comparator with precision internal reference

• 100ppm/°C temperature coefficient of threshold voltage

• 100% tested at 2V

• Output current sinking ability . . . . . . . . . . . . . Up to 20mA

• Individually programmable upper and lower trip voltages

and hysteresis levels

• Pb-Free available (RoHS Compliant)

Applications

• Pocket pagers

• Portable instrumentation

• Charging systems

• Memory power back-up

• Battery operated systems

• Portable computers

• Level detectors

OUT 1

HYST 1

SET 1

GND

1

2

3

4

8

7

6

5

V+

OUT 2

SET 2

HYST 2