ICs for Audio Common Use AN7147N Dual 5.3W Audio Power Amplifier Circuit ■ Overview Unit : mm The AN7147N is an integrated circuit designed for power amplifier of 5.3W (12.0V, 3Ω) output. Stereo operation is enabled due to incorporating two amps. on one chip. It makes high reliability by smaller quiescent current compared with power amp. current and protectors built in. As quiescent circuit current is very small, it is most suitably used for battery operated set such as radio cassette recorder. Furthermore, low distortion and low noise are realized and external components are very few. 12-pin SIL package enabled compact and high integrated set. 5.9±0.25 7.7±0.3 7.8±0.25 ø 3.6 Pin No. Pin Name Pin No. N.F.B Ch.1 7 Output Ch.2 2 Input Ch.1 8 Bootstrap Ch.2 3 Ripple Filter 9 GND (Output) 4 GND (Input) 10 VCC 5 Input Ch.2 11 Bootstrap Ch.1 6 N.F.B Ch.2 12 Output Ch.1 ■ Block Diagram 1 11 Driver Circuit Output Circuit 12 Over Current Over Temperature Protection 3 5 Input Circuit 6 Pin Name 1 Input Circuit Driver Circuit 4 GND (Input) 29.6±0.3 12-Lead SIP Package with Fin (HSIP012-P-0000A) ■ Pin Descriptions 2 3.5±0.3 1.2±0.1 1 + 0.1 0.35 – 0.05 2.54 ■ Features • Low quiescent current • High operation stability • Low radiation • Low distortion • Low noise • Low shock noise from power ON/OFF operation • Fewer external componetns 0.6 R1.8 0.6±0.1 29.96±0.3 28.0±0.3 20.0±0.2 12 Output Circuit 9 GND (Output) 10 VCC 7 8 ICs for Audio Common Use AN7147N ■ Absolute Maximum Ratings (Ta= 25˚C) Symbol Rating Unit Supply Voltage Parameter VCC 24 V Supply Current ICC 4 A Power Dissipation * PD 41.7 W Operating Ambient Temperature Topr – 30 ~ + 75 ˚C Storage Temperature Tstg – 55 ~ + 150 ˚C * Rθj – c = 3˚C/W ■ Electrical Characteristics (VCC = 12V, RC = 3Ω, f = 1kHz, Ta = 25˚C) Parameter Symbol Condition Quiescent Circuit Current ICQ Vi = 0mV Voltage Gain GV PO = 1.0W THD Total Harmonic Distortion Vno Output Noise Voltage typ. max. 19 mA 44.5 46.5 dB PO = 1.0W, f = 1kHz 0.2 0.75 PO = 1.0W, f = 100Hz 0.4 PO = 1.0W, f = 10kHz 0.3 42.5 4.7 4.3 THD = 10%, VCC = 9V, RL = 3Ω 2.9 0.25 Rg = 10kΩ, Without Filter 0.40 0.5 0 1 CB PO = 0.5W CS PO = 0.5W 40 50 Ripple Rejection Ratio RR PO = 0.5W 45 50 Output Offset Voltage VO (offset) Vi = 0 Operating Supply Voltage Range : 5V to 22V PD – Ta 50 (1) Tc= Ta (θj – c = 3˚C/W) (2) With a 100cm2 × 3mm Al heat sink (black color coated) or a 200cm2 × 2mm Al heat sink (not lacquered) (3) With a 100cm2 × 2mm Al heat sink (not lacquered) (4) Without heat sink Power Dissipation PD (W) (1) 30 20 (2) 10 (3) (4) 0 0 40 80 120 Ambient Temperature Ta (˚C) 160 W Rg = 10kΩ, f = 15Hz ~ 30kHz, 12dB/OCT Channel Separation 40 % 5.3 THD = 10%, RL = 4Ω Channel Balance Note) Unit 13 THD = 10%, RL = 3Ω PO Maximum Output Power min. 0 mV dB dB dB 200 mV ICs for Audio Common Use AN7147N PO, THD – Vi 0 0 4 8 12 16 20 24 f = 10kHz f = 100Hz 1 f = 1kHz 0.3 z 0.1 0.03 PO f = 1kHz 0.01 0.1 0.3 1 Supply Voltage VCC (V) 3 10 30 100 45 GV 44 43 42 1.5 1.0 0 10 0.8 ICQ 0.6 10 0.4 THD 0.2 5 0 4 8 12 16 20 4Ω = RL 2Ω RL = RL Total Harmonic Distortion THD (%) 20 Total Harmonic Distortion THD (%) 1.0 Supply Current ICC (mA) 800 f = 1kHz RL = 3Ω =3 Ω GV 44 0 600 f = 1kHz Rg = 600Ω THD = 10% 400 200 0 24 4 8 12 16 20 V CC 10kHz 1kHz 0.1 0.3 0.5 V =9 THD = 5% 4 2 1.0 1 3 5 10 Vno – Rg VCC = 12V RL = 3Ω 1.8 1.6 Output Noise Voltage Vno (W) 2.0 100Hz 0.3 Output Power PO (W) VCC = 12V RL = 3Ω Output Power PO (W) = 1 0.01 0.1 24 THD = 10% VC 100k 2.0 6 V 12 10k VCC = 12.0V RL = 3Ω Rg = 600Ω PO – f RL = 3Ω f = 1kHz Single channel operation C 3 Supply Voltage VCC (V) 8 3.0 1k 0.03 PC – PO 4.0 100 THD – PO 10 45 15 THD 0.5 Frequency f (Hz) 1000 43 VCC = 12V RL = 3Ω PO = 1.0W 2.0 ICC – VCC 46 Supply Voltage VCC (V) Power Consumption PC (W) 46 Input Voltage Vi (mV) GV, ICQ, THD – VCC Quiescent Circuit Current ICQ (mA) Voltage Gain GV (dB) Total Harmonic Distortion THD (%) Voltage Gain GV (dB) 4 THD 3 Hz R 8 = L 8Ω 10 100 Ω =3 12 VCC = 12V RL = 3Ω f = 1kHz 30 10H RL = 4Ω 16 RL Output Power PO (W) 20 THD, GV – f f= THD = 10% 100 f= Output Power PO (W), Total Harmonic Distortion THD (%) PO – VCC 24 1.4 1.2 1.0 0.8 0.6 0.4 FLAT 0.2 0 0.1 0.3 0.5 1 3 Output Power PO (W) 5 10 0 10 100 1k 10k Frequency f (Hz) 0 10 100 DIN AUDIO 1k 10k Source Resistance Rg (Ω) 100k ICs for Audio Common Use AN7147N ■ Application Circuit VCC – + + 100µF – 3 10 0.1µF 1 100µF 11 + 2.2Ω + – 47µF Ch.1 Input 1000µF 2 – 1000µF 12 + – + – AN7147N Ch.2 Input 5 7 47µF – 1000µF + 6 100µF 8 + 4 – 0.1µF 9 2.2Ω ■ Printed Circuit Board Layout Scale : 1/1 AN7147N Output2 – + 1000µF Input2 – + 2.2Ω + – GND 100µF 100µF – + 100µF 2.2 Ω – + 47µF Input1 1 – + Output1 1000µF µF 0.1 0.1µF VCC + – + – 47µF 12 1000µF GND