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31002A

Unisonic Technologies
Part Number 31002A
Manufacturer Unisonic Technologies
Description LINEAR INTEGRATED CIRCUIT
Published Sep 16, 2006
Detailed Description www.DataSheet4U.com UTC 31002A LINEAR INTEGRATED CIRCUIT TELEPHONE TONE RINGER DESCRIPTION The UTC 31002A is a bipola...
Datasheet PDF File 31002A PDF File

31002A
31002A

Overview
www.
DataSheet4U.
com UTC 31002A LINEAR INTEGRATED CIRCUIT TELEPHONE TONE RINGER DESCRIPTION The UTC 31002A is a bipolar integrated circuit designed for telephone bell replacement.
It can also be used as alarms or other alerting devices.
FEATURES *Designed for telephone bell replacement.
*Low current drain for multiple extension of lines.
*Adjustable 2-frequency tone.
*Adjustable warbling rate.
*Built-in hysteresis prevents false triggering and rotary dial 'CHIRPS'.
*Programmable for initiation current by simple external resistor SOP-8 DIP-8 PIN CONFIGURATIONS Vcc RSL Low Freq.
Time Constant Low Freq.
Time Costant 1 2 3 4 DataSheet4U.
com 7 6 5 8 Output High Freq.
Time Constant High Freq.
Time Constant GND DataShee ABSOLUTE MAXIMUM RATINGS(Ta=25°C ) PARAMETER Supply Voltage Power Dissipation Operating Temperature Storage Temperature SYMBOL Vcc Pd Topr Tstg VALUE 30 400 -45 to 85 -65 to 150 UNIT V mW °C °C UTC UNISONIC TECHNOLOGIES CO.
, LTD.
1 QW-R108-005,A DataSheet4U.
com DataSheet 4 U .
com www.
DataSheet4U.
com UTC 31002A BLOCK DIAGRAM LINEAR INTEGRATED CIRCUIT R2 C3 R3 4 7 6 3 C2 LOW OSC HIGH OSC AMP 8 OUTPUT 1 POWER SUPPLY (WITH HYSTERESIS) 5 2 Note:R2,R3,C2 and C3 are parts externally mounted et4U.
com specified) ELECTRICAL CHARACTERISTICS( Ta=25°C, all voltage referenced to GND unless otherwise DataSheet4U.
com PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX Operating Supply Voltage Initiation Supply Voltage (note 1) Initiation Supply Current (note 1) Sustaining Voltage (note 2) Sustaining Current (note 2) Output Voltage High Output Voltage Low IIN(Pin 3) IIN(Pin 7) High Frequency 1 High Frequency 2 Low Frequency Isi Vsus Isus VOH VOL 6.
8K-Pin 2 to GND See Fig.
2 No Load Vcc=Vsus,See Fig.
2 Vcc=21V, I8=-15mA Pin6=6V, Pin7=GND Vcc=21V, I8=15mA Pin6=GND, Pin7=6V Pin3=6V, Pin4=GND Pin7=6V, Pin6=GND R3=191K, C3=6800pF R3=191K, C3=6800pF R2=165K, C2=0.
47µF 1.
4 9.
7 0.
7 17.
0 2.
8 11.
0 1.
4 19.
0 4.
2 12.
0 2.
5 21.
0 1.
6 500 500 563 704 11.
0...


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