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| UTC31001 CIRCUIT LINEAR INTEGRATED TELEPHONE TONE RINGER GENERAL DESCRIPTION The UTC 31001 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 extention of lines. *Adjustable 2-frequency tone. *Adjustable warbling rate. *Bulit-in hysteresis prevents false triggering and rotary dial 'CHIRPS'. *Programmable for initiation voltage by simple external resistor DIP-8 BLOCK DIAGRAM R2 C3 R3 4 7 6 3 C2 LOW OSC HIGH OSC AMP 8 OUTPUT 1 POWER SUPPLY (WITH HYSTERESIS) 5 Note:R2,R3,C2 and C3 are parts 2 externally mounted ABSOLUTE MAXIMUM RATINGS(Ta=25C ) CHARACTERISTIC 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 1 UNISONIC TECHNOLOGIES CO. LTD UTC31001 CIRCUIT CHARACTERISTIC 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(Pin3) IIN(pin7) High Frequency 1 High Frequency 2 Low Frequency LINEAR INTEGRATED ELECTRICAL CHARACTERISTICS( Ta=25C ) (All voltage referenced to GND unless otherwise specified) SYMBOL Vcc Vsi Isi Vsus Isus VOH VOL TEST CONDITION See Fig.2 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=0.47F MIN 17 1.4 9.7 0.7 17.0 TYP. 19 3.5 11.0 1.4 19.0 MAX 29.0 21 4.2 12.0 2.5 21.0 1.6 500 500 563 704 11.0 UNIT V V mA V mA V V nA nA Hz Hz Hz FH1 FH2 FL 461 576 9.0 512 640 10 *NOTE (See electrical characteristics sheet) 1. Initiation supply voltage (Vsi) is the supply voltage required to start the tone ringer oscillating. 2. Sustaining voltage (Vsus) is the supply voltage required to maintain oscillation. Circuit Current-Supply Voltage (No Load) 8.5 4.0 7.5 3.5 Supply Current Vs. Supply Voltage (No Load) Icc(mA),Supply Current Supply Current (mA) 2 6 10 14 18 22 26 30 34 6.5 5.5 4.5 3.5 2.5 1.5 3.0 2.5 2.0 1.5 1.0 0.5 A:RSL=5K B:RSL=6.8K C:RSL=13K 0.5 2 6 10 14 18 22 26 30 34 Vcc(V),Supply voltage Vcc(V),Supply voltage Fig.2 Fig. 3 UTC 2 UNISONIC TECHNOLOGIES CO. LTD UTC31001 CIRCUIT APPLICATION CIRCUIT TIP C1 0.9 F R1 560 LINEAR INTEGRATED C5 0.22 F 1 8 10k 2 RING 5.6k - 1 M 3 C4 22 F/35V D1 29V R2 4 165k+-1% C2 F+-5% 0.47 7 UTC 31001 6 R3 191k+-1% C3 6.9nF+-5% 5 SP 15k 1300:8 Fig.4 UTC 3 UNISONIC TECHNOLOGIES CO. LTD |
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