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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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TDA1553CQ 데이터시트(HTML) 4 Page - NXP Semiconductors |
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TDA1553CQ 데이터시트(HTML) 4 Page - NXP Semiconductors |
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1995 Dec 15 4 Philips Semiconductors Product specification 2 × 22 W stereo BTL car radio power amplifier with loudspeaker protection and 3-state mode switch TDA1553CQ PINNING SYMBOL PIN DESCRIPTION IN1 1 input 1 GND(S) 2 signal ground VP1 3 supply voltage OUT1A 4 output 1A GND1 5 power ground 1 OUT1B 6 output 1B OUT2A 7 output 2A GND2 8 power ground 2 OUT2B 9 output 2B VP2 10 supply voltage MODE 11 mode switch input LSP 12 loudspeaker protection IN2 13 input 2 Fig.2 Pin configuration. handbook, halfpage 1 2 3 4 5 6 7 8 9 10 11 12 13 MBC993 TDA1553CQ IN1 GND(S) OUT1A GND1 OUT1B OUT2A GND2 OUT2B VP2 VP1 MODE LSP IN2 FUNCTIONAL DESCRIPTION The TDA1553CQ contains two identical amplifiers with differential input stages and can be used for bridge applications. The gain of each amplifier is fixed at 26 dB. Special features of the device are: 3-state mode switch • standby: low supply current (<100 µA) • mute: input signal suppressed • operating: normal on condition. Loudspeaker protection When a short-circuit to ground occurs, which forces a DC voltage across the loudspeaker of ≥1 V, a built-in protection circuit becomes active and limits the DC voltage across the loudspeaker to ≤1V. Pin 12 detects the status of the protection circuit (e.g. for diagnostic purposes). Short-circuit protection If any output is short-circuited to ground during the standby mode, it becomes impossible to switch the circuit to the mute or operating condition. In this event the supply current will be limited to a few milliamps. |
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