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| ICs for Audio Common Use AN7164N BTL 47W Audio Power Amplifier Circuit s Overview The AN7164N is an integrated circuit designed for 47W (VCC = 26.4V, 8) 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. Unit : mm 5.90.25 7.70.3 7.80.25 o 3.6 12 29.960.3 28.00.3 20.00.2 0.60.1 s Features * High output power * Low distortion, low noise * Low shock noise from power ON/OFF operation * Incorporates stand-by circuits * Incorporates protection circuits (Temperature, Overcurrent, Load Short, Output - GND Short) R1.8 0.6 1 0.35 - 0.05 1.20.1 3.50.3 10 7 + 0.1 12-Lead SIP Package with Fin (Power Type) (HSIP012-P-000A) s Pin Descriptions Pin No. 1 2 3 4 5 6 Pin Name Ripple Filter NFB Ch.2 GND (Input) NFB Ch.1 Input Stand-by Pin No. 7 8 9 10 11 12 Pin Name Output Ch.1 Bootstrap Ch.1 GND (Output) Output Ch.2 Bootstrap Ch.2 VCC s Block Diagram VCC 2 11 12 6 Input Circuit Driver Circuit Protection Output Circuit 1 Ripple Filter Over Temp. Load Short Overcurrent Output-GND Short 5 Input Circuit Driver Circuit Output Circuit 3 GND 4 8 9 GND 2.54 29.60.3 AN7164N s Absolute Maximum Ratings (Ta= 25C) Parameter Supply Voltage Supply Current Peak Supply Voltage Power Dissipation Operating Ambient Temperature Storage Temperature Note) Non-Signal Symbol VCC ICC VCC (surge) PD Topr Tstg ICs for Audio Common Use Rating 32 Note) 5 55 62.5 - 30 ~ + 75 - 55 ~ + 150 Unit V A V W C C s Recommended Operating Range (Ta= 25C) Parameter Operating Supply Voltage Range Symbol VCC Range 8.3V ~ 30V s Electrical Characteristics (VCC= 26.4V, RL= 8, f= 1kHz, BTL Operation, Ta= 25C) Parameter Quiescent Circuit Current Output Noise Voltage Output Offset Voltage Total Harmonic Distortion Voltage Gain Maximum Output Power Ripple Rejection Ratio Stand-by Current Stand-by Threshold Voltage Note) With DIN/AUDIO filter Symbol ICQ Vno VO (offset) THD GV Po RR ISTB Vth (STB) Vin= 0V Rg= 10k Note) Vin= 0V PO= 1W PO= 1W THD= 10% Rg= 0, Supply Ripple 1Vrms, 120Hz Sine Wave Note) Piny Open DC Voltage of Piny at ICQ= less than 1mA 49.5 40 45 Condition min. typ. 55 0.9 0 0.06 51.5 47 48 0.1 2.7 30 max. 100 1.5 300 0.3 53.5 Unit mA mV mV % dB W dB A V s Characteristics Curve PD - Ta (62.5) 60 Rth (j - c) = 2C/W Rth (j - a) = 42C/W ts ink fin In ity a he 50 Power Dissipation PD (W) (41.7) 40 (31.3) 30 (25.0) 20 (17.9) (10.4) 10 (3.0) 0 1 C/ W he at 2C sin /W k 3C /W hea hea 5C/ Wh t si nk t si nk eat s 10C/W No heat sink 0 25 ink heat si nk 50 75 100 125 150 Ambient Temperature Ta (C) ICs for Audio Common Use s Characteristics Curve Po - VCC Total Harmonic Distortion THD (%) Voltage Gain GV (dB) 60 THD = 10% 50 53 52 51 50 49 hysteresis present GV 4 f = 1kHz PO = 0.75W RL = 8 Gain (0dB = 51.5dB) 0 Gain Response (dB) -4 -8 -12 -16 -20 f = 1kHz 0 8 16 24 32 40 100 1k AN7164N GV, THD - VCC Gain Response, THD - fIN VCC = 26.4V RL = 8 VIN = 6.6mV At VO = 0dB PO = 0.75W 1.0 0.8 0.6 0.4 THD 0.2 0 40 30 0.5 0.4 0.3 0.2 0.1 0 f = 10kHz THD PO = 0.75W RI = 8 20 RL = 8 10 0 4 8 12 16 20 24 28 32 36 10k 100k Supply Voltage VCC (V) Supply Voltage VCC (V) Input Frequency fIN (Hz) PO, THD - VIN 1000 GV = 51.5dB fIN = 1kHz 300 VCC = 26.4V RL = 8 100 Output Power Po (W) 30 10 3 1 0.3 0.1 0.1 PO THD 10 Total Harmonic Distortion THD (%) 3 1.0 0.3 0.1 0.03 0.01 100 120 Quiescent Circuit Current ICQ (mA) 100 ICQ, Voffset - VCC 5.0 Vno - Rg GV = 51.5dB (f = 1kHz) 4.0 20 0 Output Noise Voltage Vno (mV) Voffset 80 60 ICQ 40 20 0 - 60 - 80 - 20 - 40 Offset Voltage Voffset (mV) 3.0 2.0 Without filter 1.0 With DIN/And1V filter 0 0 100 1k 10k 0.3 1 3 10 30 0 10 20 30 40 50 Input Frequency VIN (mV) Supply Voltage VCC (V) Source Resistance Rg () RR - VCC 100 fripple = 120Hz Note) 60 Vripple = 0.5Vrms Ripple Rejection Rate RR (dB) 50 40 30 20 10 0 Vripple = 1Vrms Measured with heat sink open Grounding the heat sink increases RR by about 1 dB (improvement). 90 80 Ripple Rejection Rate RR (dB) RR - fripple 100 VCC = 26.4V Vripple = 1.0Vrms Ripple Rejection Rate RR (dB) 90 80 70 60 50 40 30 20 10 50 100 200 300 500 1k 0 0.2 0.3 RR - Vripple VCC = 26.4V fripple = 120Hz 70 60 50 40 30 20 10 0 10 20 30 40 50 0 10 20 30 0.5 1.0 2 4 Supply Voltage VCC (V) Ripple Frequency fripple (Hz) Ripple Voltage Vripple (Vrms) Total Harmonic Distortion THD (%) Output Power Po (W) |
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