LM386M

The LM386M is one member of the LM386 family which designed as the low voltage audio power amplifier. This device can be used in (1)AM-FM radio amplifi-ers; (2)portable tape player amplifiers; (3)intercoms; (4)TV sound systems; (5)line drivers; (6)ultrasonic drivers; (7)small servo drivers; (8)power converters. There are two pins that make the LM386 a more versatile amplifier:pin 1 and 8. If a capacitor is put from pin 1 to 8, bypassing the 1.35 kW resistor, the gain will go up to 200 (46 dB). If a resistor is placed in series with the capacitor, the gain can be set to any value from 20 to 200.

Features of the LM386M are:(1)battery operation; (2)minimum external parts; (3)wide supply voltage range: 4V12V or 5V18V; (4)low quiescent current drain: 4 mA; (5)voltage gains from 20 to 200; (6)ground referenced input; (7)self-centering output quiescent voltage; (8)low distortion; (9)available in 8 pin MSOP package.

The absolute maximum ratings of the LM386M can be summarized as:(1)junction temperature:+150°C;(2)operating temperature:0°C to +70°C;(3)storage temperature:-65°C to +150°C;(4)input voltage:±0.4V;(5)supply voltage:22 V;(6)dual-in-line package soldering (10 sec):+260°C;(7)small outline package (SOIC and MSOP) vapor phase (60 sec):+215°C;(8)small outline package (SOIC and MSOP) infrared (15 sec):+220°C. If you want to know more information such as the electrical characteristics about the LM386M, please download the datasheet in www.seekic.com or www.chinaicmart.com .