UTCTA31002

LINEAR INTEGRATED CIRCUIT

1

QW-R108-004,A

TELEPHONE TONE RINGER

DESCRIPTION

The UTC TA31002 is a bipolar integrated circuit

designed for telephone bell replacement. It can also be

used as alarms or other alerting devices.

FEATURES

*Current consumption is small. (at no-load)

*Package is compaction. (DIP-8 pin)

*Oscillation frequency is variable.

*Built-in threshold circuits prevent false triggering due

to power noise as well as “chirps” due to rotary dial.

*Few external componens.

DIP-8

PIN CONFIGURATIONS

1

2

3

4

8

7

6

5

Vcc

RSL

Low Freq.

Time Constant

Low Freq.

Time Constant

Output

High Freq.

Time Constant

High Freq.

Time Constant

GND

°C )

PARAMETER

SYMBOL

VALUE

UNIT

Power Supply Voltage

Vcc

30

V

Power Dissipation

Pd

800

mW

Operating Temperature

Topr

-40 to 85

°C

Storage Temperature

Tstg

-55 to 150

°C