Datenblatt-Suchmaschine für elektronische Bauteile |
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TA2069AF Datenblatt(PDF) 5 Page - Toshiba Semiconductor |
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TA2069AF Datenblatt(HTML) 5 Page - Toshiba Semiconductor |
5 / 14 page TA2069AF 2002-10-30 5 Application Note 1. VCC and GND This IC has two VCC terminals and three GND terminals. Pattern layout should be designed carefully to reduce the common impedance. VCC VCC (pin 17): Preamplifier stage and power amplifier stage. GVN VCC (pin 16): Motor governor stage. GND PRE GND (pin 1): Preamplifier stage and power amplifier stage except the power drive stage. PW GND (pin 11): Power drive stage of power amplifier. GVN GND (pin 12): Motor governor stage. 2. VREF It is necessary to stabilize the VREF circuit, the internal circuit operate on this reference. 3. Preamplifier Input signal should be applied to VREF standard, otherwise pop noise become bigger when VCC is turned on and off. 4. Power amplifier It is necessary to insert the coupling capacitor through the PW IN terminal. In case that DC current or DC voltage is applied to the PW IN terminal, the internal circuit has unbalance and the power amplifier doesn't operate normally. Maximum Ratings (Ta = 25°C) Characteristic Symbol Rating Unit Supply voltage VCC 4 V (Note 1) 400 Power dissipation PD (Note 2) 925 mW Output current (PW AMP.) IO (PW) 200 mA Output current (GVN) IO (GVN) 700 mA Operating temperature Topr -25~75 °C Storage temperature Tstg -55~150 °C (Note 1) IC only : Derated above Ta = 25°C in the proportion 3.2mW / °C (Note 2) IC + PCB (TOSHIBA typical PCB): Derated above Ta = 25°C in the proportion 7.4mW / °C |
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Ähnliche Beschreibung - TA2069AF |
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