ICs for Audio Common Use AN7164N BTL 47W Audio Power Amplifier Circuit ■ Overview Unit : mm The AN7164N is an integrated circuit designed for 47W (VCC = 26.4V, 8Ω) output power amplifier. High power output (BTL 47W), low distortion and low noise are realized. High reliability is obtained due to same kinds of protectors built in. Furthermore, ON/OFF is enabled even if power is supplied to power supply pin by stand-by circuit. 5.9±0.25 7.7±0.3 7.8±0.25 ø 3.6 29.6±0.3 2.54 0.6 R1.8 ■ Features • High output power • Low distortion, low noise • Low shock noise from power ON/OFF operation • Incorporates stand-by circuits • Incorporates protection circuits 0.6±0.1 29.96±0.3 28.0±0.3 20.0±0.2 12 1 + 0.1 1.2±0.1 (Temperature, Overcurrent, Load Short, Output – GND Short) 3.5±0.3 0.35 – 0.05 12-Lead SIP Package with Fin (Power Type) (HSIP012-P-000A) ■ Pin Descriptions Pin No. Pin Name Pin No. Pin Name 1 Ripple Filter 7 Output Ch.1 2 NFB Ch.2 8 Bootstrap Ch.1 3 GND (Input) 9 GND (Output) 4 NFB Ch.1 10 Output Ch.2 5 Input 11 Bootstrap Ch.2 6 Stand-by 12 VCC ■ Block Diagram VCC 2 11 6 Input Circuit Driver Circuit 1 Ripple Filter Over Temp. Load Short Overcurrent 5 Input Circuit Driver Circuit 12 Output Circuit 10 Protection 3 GND 4 Output-GND Short Output Circuit 8 7 9 GND ICs for Audio Common Use AN7164N ■ Absolute Maximum Ratings (Ta= 25˚C) Parameter Symbol Rating Unit Supply Voltage VCC Supply Current ICC 5 VCC (surge) 55 V Power Dissipation PD 62.5 W Operating Ambient Temperature Topr – 30 ~ + 75 ˚C Storage Temperature Tstg – 55 ~ + 150 ˚C Peak Supply Voltage Note) 32 Note) V A Non-Signal ■ Recommended Operating Range (Ta= 25˚C) Parameter Symbol Range Operating Supply Voltage Range VCC 8.3V ~ 30V ■ Electrical Characteristics (VCC= 26.4V, RL= 8Ω, f= 1kHz, BTL Operation, Ta= 25˚C) Parameter Symbol Condition min. typ. max. Unit Quiescent Circuit Current ICQ Vin= 0V 55 100 mA Output Noise Voltage Vno Rg= 10kΩ Note) 0.9 1.5 mV Output Offset Voltage VO (offset) Vin= 0V 0 300 mV THD PO= 1W 0.06 0.3 % Voltage Gain GV PO= 1W 49.5 51.5 53.5 dB Maximum Output Power Po 40 47 W Ripple Rejection Ratio RR 45 48 dB Stand-by Current ISTB THD= 10% Rg= 0Ω, Supply Ripple 1Vrms, 120Hz Sine Wave Note) Piny Open DC Voltage of Piny at ICQ= less than 1mA Total Harmonic Distortion Stand-by Threshold Voltage Note) Vth (STB) With DIN/AUDIO filter ■ Characteristics Curve PD – Ta Rth (j – c) = 2˚C/W Rth (j – a) = 42˚C/W fin In (62.5) 60 ity a he ts Power Dissipation PD (W) ink 50 (41.7) 40 1˚ (31.3) 30 2˚C C/ W he at /W k (25.0) 3˚C 20 (17.9) 5˚C/ (10.4) 10 10˚C/W (3.0) 0 /W sin hea t si nk t si nk hea Wh eat s ink heat si nk No heat sink 0 25 50 75 100 Ambient Temperature Ta (˚C) 125 150 0.1 2.7 30 µA V ICs for Audio Common Use AN7164N ■ Characteristics Curve GV, THD – VCC Output Power Po (W) 50 40 30 RL = 8Ω 20 10 0 4 8 12 16 20 24 28 32 VCC = 26.4V RL = 8Ω VIN = 6.6mV At VO = 0dB PO = 0.75W 53 52 51 49 hysteresis present Gain (0dB = 51.5dB) f = 1kHz PO = 0.75W RL = 8Ω GV 0.5 THD 0.4 PO = 0.75W RI = 8Ω 0.3 f = 10kHz 0.2 0 0 0.8 –4 0.6 –8 0.4 –12 0 –16 f = 1kHz 0 8 16 24 32 40 100 Supply Voltage VCC (V) Supply Voltage VCC (V) PO, THD – VIN 5.0 GV = 51.5dB (f = 1kHz) 1.0 THD 0.3 1 0.1 0.3 0.03 PO 1 10 3 30 20 100 0.01 100 0 Voffset 80 – 20 60 – 40 ICQ 40 – 60 20 0 Offset Voltage Voffset (mV) 10 Quiescent Circuit Current ICQ (mA) 3 30 Total Harmonic Distortion THD (%) Output Power Po (W) 120 10 Output Noise Voltage Vno (mV) 4.0 100 0.3 0 10 20 30 40 With DIN/And1V filter 0 50 Vripple = 1Vrms 30 20 10 20 30 40 Supply Voltage VCC (V) 50 ∞ 10k RR – Vripple VCC = 26.4V Vripple = 1.0Vrms VCC = 26.4V fripple = 120Hz 90 80 Ripple Rejection Rate RR (dB) Ripple Rejection Rate RR (dB) Ripple Rejection Rate RR (dB) Vripple = 0.5Vrms 50 1k Source Resistance Rg (Ω) 80 60 100 100 90 Measured with heat sink open Grounding the heat sink increases RR by about 1 dB (improvement). 10 0 RR – fripple fripple = 120Hz 0 Without filter 1.0 100 0 2.0 Supply Voltage VCC (V) RR – VCC 40 3.0 – 80 Input Frequency VIN (mV) Note) 100k 10k Vno – Rg ICQ, Voffset – VCC GV = 51.5dB fIN = 1kHz 300 VCC = 26.4V RL = 8Ω 0.1 0.1 1k Input Frequency fIN (Hz) 1000 3 0.2 THD –20 0.1 36 1.0 4 50 Gain Response (dB) Total Harmonic Distortion THD (%) Voltage Gain GV (dB) THD = 10% Gain Response, THD – fIN Total Harmonic Distortion THD (%) Po – VCC 60 70 60 50 40 30 70 60 50 40 30 20 20 10 10 0 10 20 30 50 100 200 300 500 Ripple Frequency fripple (Hz) 1k 0 0.2 0.3 0.5 1.0 2 4 Ripple Voltage Vripple (Vrms)