AN7191NZ

ICs for Audio Common Use AN7191NZ Dual 20 W BTL audio power amplifier s Overview The AN7191NZ is an audio power IC developed for the sound output of car audio (dual 20 W). It is incorporating various protective circuits to protect the IC from destruction by GND-open short circuit to GND and power supply surge which are the important subject of power IC protection, so the IC will largely contribute to a high reliability design of equipment. Also, it is incorporating a perfect muting circuit which is free from shock noise, so that a shock noise design under the set transient condition can be made easily using together with its standby function. 18.00±0.30 13.50±0.30 1.50±0.10 Unit : mm 4.00±0.20 φ3.60±0.10 1 1.27 0.50+0.20 –0.10 15 (0.61) (1.80) (2.54) 2.40±0.50 R0.55 (1.95) 0.25+0.15 –0.05 s Features BTL 20 W × 2-channel (4 Ω), GV = 34 dB Built-in various protection circuits (thermal protection, short circuit to VCC and short circuit to GND, VCC-open short circuit to VCC , GND-open short circuit to GND, overvoltage and supply surge, and ASO, etc.) Especially, the supply surge breakdown voltage is 100 V or more. GND open breakdown voltage is 16 V or more. Built-in standby function (free from shock noise at standby on/off) Built-in muting function Free from shock noise at mute-on/off. Adapting attenuator method so that abnormal sound due to waveform deformation is not generated. Attack time, recovery time are 50 ms or less. Reduction in external components It el...