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TA31002 Datasheet(PDF) 2 Page - Unisonic Technologies |
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TA31002 Datasheet(HTML) 2 Page - Unisonic Technologies |
2 / 4 page UTCTA31002 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R108-004,A BLOCK DIAGRAM LOW OSC HIGH OSC AMP POWER SUPPLY (WITH HYSTERESIS) 8 6 7 4 3 1 5 2 OUTPUT R2 R1 C2 C1 Note:R1,R2,C1 and C2 are partsexternally mounted ELECTRICAL CHARACTERISTICS( Ta=25 °C ) (All voltage referenced to GND unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Operating Voltage Vopr 29 V Initiation Supply Voltage Vsi (note 1) 17 19 21 V Sustaining Supply Voltage Vsus (note 2) 10.5 12 - V Initiation Current Consumption Isi No-Load 1.4 3.3 4.2 mA Sustaining Current Consumption Isus 0.7 1.4 2.5 mA fL C1=0.47 µF,R1=165kΩ 9 10 11 Hz Oscillation Frequency (not3) fH1 C2=6800pF,R2=191k Ω 461 512 563 Hz fH2 576 640 703 Hz Output Voltage “ H” Level VOH Vcc=24V,VOH=-10mA PIN7=GND 20.0 21.5 22.5 V Output Voltage “L” Level VOL Vcc=24V,VOL=10mA PIN7=7V 0.7 1.0 2.0 V *NOTE : 1. Initiation supply voltage (Vsi) is a supply voltage required to start oscillation of the tone ringer. 2. Sustaining supply voltage (Vsus) is a supply voltage required to maintain oscillation of the tone ringer. 3. Oscillation frequency is determined by the following equations 1,2,and 3. (1) fL=1/1.234 •R1•C1 (Hz) ; (2)fH1=1/1.515•R2•C2 (Hz); (3)fH2=1.24 fH1(Hz) |
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