LOW VOLTAGE AUDIO POWER AMP S1A0386A01 INTRODUCTION 8−DIP−300 The S1A0386A01 is a power amplifier designed for use in low voltage consumer applications. The gain is internally set to 20 to keep the external part count low, but the addition of an external resistor and Capacitor between Pin 1 and 8 will increase the gain to any value up to 200. 8−SOP−225 FEATURES • Battery operation • Minimum external parts • Wide supply voltage range: 4V − 12V (S1A0386A01-D0B0) 4V − 9V (S1A0386A01-S0B0) • Low quiescent current drain (4mA) • Voltage gains: 20 − 200dB • Ground referenced Input • Self-centering output quiescent voltage • Low distortion ORDERING INFORMATION Device Package S1A0386A01-D0B0 8−DIP−300 S1A0386A01-S0B0 8−SOP−225 Operating Temperature −20°C − + 70°C 1 S1A0386A01 LOW VOLTAGE AUDIO POWER AMP BLOCK DIAGRAM GAIN 1 8 GAIN - INPUT 2 7 BY PASS + INPUT 3 6 Vcc GND 4 5 Vo TOP VIEW ABSOLUTE MAXIMUM RATINGS (Ta = 25°C) Characteristic Supply Voltage Power Dissipation S1A0386A01-D0B0 Symbol Value Unit VCC 15 V PD 660 mW S1A0386A01-S0B0 Input Voltage Operating Temperature Storage Temperature 2 300 VI TOPR TSTG ± 0.4 -20 — +70 -40 — + 125 V °C °C LOW VOLTAGE AUDIO POWER AMP S1A0386A01 ELECTRICAL CHARACTERISTICS (Ta = 25°C, VCC = 6V, RL = 8Ω, f = 1kHz, unless otherwise specified) Characteristic Quiescent Circuit Current Symbol ICCQ Typ. Max. Unit − 4 8 mA 250 500 325 200 − mW mW VCC = 6 V, THD = 10% VCC = 9 V, THD = 10% GV Pins 1 and 8 Open 10F from Pin 1 to 8 − 26 46 − dB BW Pins 1 and 8 Open 10µF from Pin 1 to 8 − 300 60 − kHz THD PO = 125 mW, Pins 1 and 8 Open − 0.2 − % − 50 − kΩ − 250 − nA Voltage Gain Bandwidth Input Resistance Input Bias Current VI = 0 Min. PO Output Power Total Harmonic Distortion (D-Type) Test Conditions RI – IBIAS Pins 1 and 8 Open APPLICATION CIRCUIT Amplifier with Gain = 50 (34 dB) Vcc 1.2K + 10µF 6 1 2 8 Vi 10K 3 250µ + 5 + 4 7 + 10 RL BYPASS 0.05µ 3 S1A0386A01 LOW VOLTAGE AUDIO POWER AMP NOTES 4