UTC LM386 LINEAR INTEGRATED CIRCUIT LOW VOLTAGE AUDIO POWER AMPLIFIER DESCRIPTION The UTC LM386 is a power amplifier, designed for use in low voltage consumer applications. The gain is internally set to 20 keep the external part count low, but the additional of external resistor and capacitor between pin 1 and pin 8 will increase the gain to any value up to 200. SOP-8 FEATURES *Minimum external parts *Wide supply voltage range: *Voltage gains:20~200 *Ground referenced input *Low distortion 4V~12V DIP-8 PIN CONFIGURATIONS Gain 1 -Input 2 8 Gain 7 Bypass UTC LM386 +Input 3 6 VCC GND 4 5 Output BLOCK DIAGRAM 6 VCC 7 Bypass 8 Gain 15kΩ 1 Gain 15kΩ 5 Output 15kΩ 2 -Input 50kΩ UTC 150Ω 1.35kΩ 3 +Input 50kΩ 4 GND UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R107-007,B UTC LM386 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS(Ta=25°C ) PARAMETER Supply Voltage Power Dissipation SYMBOL Vcc Pd DIP-8 SOP-8 Input Voltage Operating Temperature Storage Temperature Vi Topr Tstg VALUE UNIT 15 1250 600 -0.4V~+0.4V 0 to 70 -40 to 150 V mW V °C °C ELECTRICAL CHARACTERISTICS( Ta=25°C, all voltage referenced to GND unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS ICCQ Po Vi=0 Vcc=6V,THD=10% Vcc=9V,THD=10% Pin1 and pin 8 open 10µF fron pin 1 and pin 8 Pin1 and pin 8 open 10µF fron pin 1 and pin 8 Po=125mW,pin1 and pin 8 open Quiescent circuit current Output Power Voltage Gain GV Bandwidth BW Total harmonic distortion Input Resistance Input Bias current THD Ri IBIAS MIN 250 500 Pin1 and pin 8 open TYP MAX UNIT 4 325 700 26 46 300 60 0.2 50 250 8 mA mW mW dB dB kHz kHz % kΩ nA APPLICATION CIRCUIT Fig. 2 G V =200dB Fig. 1 G V =20dB Vs Vs 6 2 3 7 10kΩ UTC 4 1 2 8 UTC LM386 Vin 10 µF 6 1 5 250 µF Vin 3 0.1 µF 10Ω 8 UTC LM386 10kΩ 250 µF 5 7 4 bypass 0.1 µF 10Ω UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R107-007,B