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2022-09-20 05:00:00
Lm1876 #8482; Audio power amplifier series dual 20W audio power amplifier, with silence and standby function mode
General description
lm1876 is a stereo audio amplifier, which can provide usable ) Power supply to 4Ω or 8Ω load. Each amplifier has an independent smooth transition fade/output silent and energy -saving standby mode, which can be controlled by external logic. The performance of LM1876 uses its self -peak #8482;) protection circuit using its self -peak #8482;) under the providing safety device under the Stantaneous Temperature. Area (SOA). Peak protection means that the components are protected by over -voltage, underwriting, overload (including thermal discharge and peak of constant temperature) at the output end. Main specifications
J THD+N, 2 x 15W continuous average
The output power is 4Ω or 8Ω: 0.1%(maximum value) [123 ]
J THD+N
output power of 1kHz continuously is 2 x 20W to 8Ω: 0.009%(typical value)
Acting current: 4.2 mAh (typical value)
Features
Peak Protection
The minimum number of external components required
S quiet fading/lighting mute mode
Stand -up mode [123 ]
Isolation 15 line to -220 package
Non-isolation 15 to -220 packaging
Application
High-end stereo TV
Metal stereo [ 123]
Small three -dimensional soundAbsolute maximum rated value (Note 4, 5)
Power voltage | vcc |+| v | (no input) 64V
Power supply Voltage | VCC |+| V | (with input) 64V
The co -mode input voltage (VCC or VEE) and | VCC |+| V shaped | ≤54V
Differential input voltage 54V [ 123]
Internal restrictions on the output current
Power Consumption (Note 6) 62.5W
Static discharge tolerance (Note 7) 2000V
Jiemin (Note 8 ) 150 12
Thermal resistance
isolated TF package θjc 2 ° C/W
Non -isolation T package θjc 1 ° C/W
Welding information
TF packaging (10 seconds) 260 ℉
StorageTemperature 40 ° C to+150 ° C
The working rated value (Note 4, 5)
Temperature range
tmin ≤Ta ≤TMAX 20 degrees C ≤TA ≤+85 degrees C
Power voltage | VCC |+| V | (Note 1) 20V to 64V
Electric characteristics (Note 4, 5) Otherwise, the following specifications are applicable to VCC +22V, V E -22V, RL 8Ω. Restricted to TA 25 degrees Celsius.
Electric characteristics (Note 4, 5) (continued)
Unless otherwise regulations, the following specifications are applicable to VCC +22V, V E - 22V, RL 8Ω. Restricted to TA 25 degrees Celsius.
Note 1: The working voltage can ensure up to 64V, but if the proper thermal factors are not considered, the peak protection circuit may produce distortion accounts. For a complete explanation, see the Application Information " section.
Note 2: DC electrical test; Reference test circuit 1.
Note 3: AC electrical test; see Test Circuit 2.
Note 4: Unless there are other regulations