H31002P Datasheet, PDF (1/4 Pages) Hi-Sincerity Mocroelectronics – BIPOLAR TONE RINGER ICS

HI-SINCERITY
MICROELECTRONICS CORP.
Spec. No. : Preliminary Data
Issued Date : 1998.08.01
Revised Date : 1999.06.01
Page No. : 1/4
H31002P
BIPOLAR TONE RINGER ICS
Description
The H31002P is a bipolar integrated circuit. It is designed for
telephone bell replacement.
Features
• Current consumption is small.
• Package is compact. (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 components.
Applications
• Telecom Tone Ringer Set
Absolute Maximum Rating (Ta = 25°C)
Characteristics
Supply Voltage
Power Dissipation
Operating Temperature
Storage Temperature
Symbol
VCC
PD
Topr
Tstg
Rating
Unit
30
V
500
mW
-40°C to +85°C
°C
-55°C to+150°C
°C
Block Diagram
R1
3
Low
C1
OSC
4
R2
C2
7 _High
OSC
6
AMP
8
1
Power Supply
5
(With hysteresis)
2
HSMC Product Specification