UNISONIC TECHNOLOGIES CO., LTD

81XX

LINEAR INTEGRATED CIRCUIT

www.unisonic.com.tw

1 of 6

Copyright © 2005 Unisonic Technologies Co., Ltd

QW-R119-001,J

POWER RESET IC

DESCRIPTION

The function of UTC 81XX is to accurately reset system after

detecting the supply voltage at the time of switching power on and

instantaneous power off in various CPU and other logic systems.

Further, this IC, with its super low consumption current and high

precision voltage detection capacity, is most suited as a voltage

check circuit for a number of products which use batteries.

FEATURES

*low current consumption.

*Low operating threshold voltage (0.65V typ.)

*Hystresis voltage is provided as a detect voltage.

(50mV typ.)

*Large output current at the time ON (15mA typ.)

*The detect voltage can be selected at your discretion at 0.1V step

within the range of 1.9V to 4.6V by the following stipulation method.

TO-92

1

SOT-25

SOT-23

1

SOT-89

1

2

3

4

5

3

2

1

*Pb-free plating product number: 81XX L

ORDERING INFORMATION

Order Number

Pin Assignment

Normal

Lead Free Plating

Package

1

2

3

4

5

Packing

81XX-AB3-D-R

81XXL-AB3-D-R

SOT-89

I

G

O

-

-

Tape Reel

81XX-AE3-2-R

81XXL-AE3-2-R

SOT-23

I

O

G

-

-

Tape Reel

81XX-AE3-3-R

81XXL-AE3-3-R

SOT-23

O

G

I

-

-

Tape Reel

81XX-AE3-5-R

81XXL-AE3-5-R

SOT-23

G

O

I

-

-

Tape Reel

81XX-AF5-A-R

81XXL-AF5-A-R

SOT-25

NC NC

G

O

I

Tape Reel

81XX-AF5-B-R

81XXL-AF5-B-R

SOT-25

O

I

G

NC

NC

Tape Reel

81XX-T92-D-B

81XXL-T92-D-B

TO-92

I

G

O

-

-

Tape Box

81XX-T92-D-K

81XXL-T92-D-K

TO-92

I

G

O

-

-

Bulk

81XX-T92-E-B

81XXL-T92-E-B

TO-92

O

I

G

-

-

Tape Box

81XX-T92-E-K

81XXL-T92-E-K

TO-92

O

I

G

-

-

Bulk

Note: Pin Assignment:

XX: detected voltage value

81XXL-AB3-D-R

(1)Packing Type

(3)Package Type

(4)Lead Plating

(2)Pin Assignment

(1) B: Tape Box, K: Bulk, R: Tape Reel

(2) refer to Pin Assignment

(3) AB3: SOT-89, AF5: SOT-25, AE3: SOT-23,

T 92: TO-92

(4) L: Lead Free Plating, Blank: Pb/Sn