ICs for Audio Common Use AN7164 30 W BTL audio power amplifier ■ Overview Unit : mm 29.6±0.3 (1.27) +0.15 0.6 –0.05 (1.27) 20.0±0.3 R1.8 (1.2) 19.1±0.3 21.9±0.3 1.45±0.15 3.5±0.3 1.80±0.15 1 1.2±0.1 (12.5) +0.10 0.25 –0.05 2.54 0.6 ■ Features • High power output • Low distortion, Low noise • Low shock noise when power supply is turned-on, off • Built-in standby function • Built-in protection circuits (Temperature, Overcurrent, Load short circuit, Output GND short circuit) φ3.6 (10.0) 28.0±0.3 (10.0) (1.3) 12 7.7±0.3 29.75±0.30 The AN7164 is an integrated circuit designed for 30 W (VCC = 21 V, 8 Ω) output power amplifier. High power output (BTL 30 W), low distortion and low noise are realized. High reliability is obtained due to various kinds of protectors built in. Furthermore, on-off of output is possible from standby terminal. HSIP012-P-0000A ■ Applications • Stereo, Karaoke, TV Ripple filter 5 GND 4 3 Input circuit 10 SEPP output circuit Protection circuits for Temp. Overcurrent, Load short, Output-GND short Driver circuit 7 SEPP output circuit 9 1 Driver circuit GND Input circuit 8 6 12 2 11 VCC ■ Block Diagram 1 AN7164 ICs for Audio Common Use ■ Pin Descriptions Pin No. Description Pin No. Description 1 Ripple filter 7 Output (ch.1) 2 Negative feedback (ch.2) 8 Bootstrap (ch.1) 3 GND (Input side) 9 GND (output side) 4 Negative feedback (ch.1) 10 Output (ch.2) 5 Input 11 Bootstrap (ch.2) 6 Standby 12 Supply voltage (VCC) ■ Absolute Maximum Ratings Parameter Supply voltage Symbol Rating VCC 30 V ICC 5.0 A PD 62.5 W Topr −30 to +75 °C Tstg −55 to +150 °C *2 Supply current Power dissipation *3 Operating ambient temperature Storage temperature *1 *1 Unit Note) *1 : Ta = 25°C except power dessipation, operating ambient temperature and storage temperature. *2 : Without signal *3 : θj-c = 2.0 (°C/W) ■ Recommended Operating Range Parameter Supply voltage Symbol Range Unit VCC 8.3 to 24 V ■ Electrical Characteristics at VCC = 21 V, RL = 8 Ω, f = 1 kHz, BTL operation, Ta = 25°C Parameter Quiescent current Output noise voltage *1 Output offset voltage Total harmonic distortion Voltage gain Maximum output power Ripple rejection ratio Standby current *1, 2 Symbol Conditions Typ Max Unit ICQ VIN = 0 V 55 100 mA VNO Rg = 10 kΩ 0.85 1.3 mV VOFF SET VIN = 0 V 0 300 mV THD PO = 1 W 0.07 0.3 % GV PO = 1 W 49.5 51.5 53.5 dB PO THD = 10% 24 30 W R.R. Rg = 0 Ω, power supply ripple 45 51 dB ISTB Pin 6 open 3 µA Note) *1 : Measurement through the DIN audio filter. *2 : Power supply ripple ······ 120 Hz Sine wave, 1V[rms] 2 Min ICs for Audio Common Use AN7164 ■ Usage Notes Standby-on (i.e. an application of 5 V to pin 6) under a high temperature may cause no-output due to the malfunction of rapid discharging circuit of the ripple filter. To avoid this, it is necessary to forcibly flow a current of 1 mA into pin 1 at standby-on. ■ Technical Information • PD Ta curves of HSIP012-P-0000A PD T a 65 62.5 60 Infinite heat sink Rth (j−c) = 2°C/W Rth (j−a) = 42°C/W 55 Power dissipation PD (W) 50 45 41.7 40 1°C/W heat sink 35 31.3 30 2°C/W heat sink 3°C/W heat sink 25 20 17.9 15 5°C/W heat sink 10.4 10 10°C/W heat sink 5 3.0 0 Without heat sink 0 25 50 75 100 125 150 Ambient temperature Ta (°C) ■ Application Circuit Example 2 kΩ VCC = 21 V 1 000 µF 12 1 100 µF 2 0.047 µF 220 Ω 11 100 µF 10 4 100 µF 2.2 Ω 8Ω 7 3 8 100 µF 2.2 Ω 0.1 µF 9 VIN 5 6 1 µF 0.1 µF 0V 5V 3