© Semiconductor Components Industries, LLC, 2010

May, 2010 − Rev. 4

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Publication Order Number:

CAT8801/D

CAT8801

200 nA Microprocessor

Power Supply Supervisors

Description

The CAT8801 is a supervisory circuit that monitors power supplies

in digital systems and provides a reset signal whenever the system’s

input voltage is below a prescribed minimum level. The CAT8801

replaces popular voltage supervisors such as MAX809 in applications

where operating current is a primary consideration.

CAT8801 generates a reset signal, which is asserted while the power

supply voltage is below a preset threshold level and remains asserted

for at least 140 ms after the power supply level has risen above that

level. Nine industry standard threshold levels are offered to support

+5.0 V, +3.3 V, +3.0 V, +2.5 V and +1.8 V systems. ON Semiconductor’s

floating gate technology, used in programming the trigger thresholds,

makes it possible to quickly offer any custom reset threshold value

should the 9 standard voltage thresholds not meet a system’s needs.

The CAT8801 features a Push−Pull CMOS RESET output (active

LOW) and is fully specified over the industrial temperature range of

−40

°C to 85°C.

CAT8801 is available in compact 3−pin SOT23 and SC−70

packages.

Features

+5.0 V Power Supplies

Applications

http://onsemi.com

PIN CONNECTIONS

See detailed ordering and shipping information in the package

dimensions section on page 7 of this data sheet.

ORDERING INFORMATION

SOT−23

TB SUFFIX

CASE 527AG

SC−70

SD SUFFIX

CASE 419AB

3−Lead SOT−23

3−Lead SC−70

(Top View)

GND

RESET

CAT8801

L

M

T

S

R

Z

Nominal Threshold

Threshold Suffix

THRESHOLD SUFFIX SELECTOR

Y

W

V

4.625

4.380

3.075

2.925

2.630

2.320

2.190

1.670

1.580

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