TPA4861
TPA4861 is 1-W MONO AUDIO POWER AMPLIFIER manufactured by Texas Instruments.
URES
- 1-W BTL Output (5 V, 0.11 % THD+N)
- 3.3-V and 5-V Operation
- No Output Coupling Capacitors Required
- Shutdown Control (IDD = 0.6 µA)
- Unpensated Gains of 2 to 20 (BTL Mode)
- Surface-Mount Packaging
- Thermal and Short-Circuit Protection
- High Supply Ripple Rejection Ratio (56 d B at
1 k Hz)
- LM4861 Drop-In patible
D PACKAGE (TOP VIEW)
SHUTDOWN BYPASS IN+ IN-
1 2 3 4
8 7 6 5
VO2 GND
VDD VO1
DESCRIPTION
The TPA4861 is a bridge-tied load (BTL) audio power amplifier capable of delivering 1 W of continuous average power into an 8-Ω load at 0.2% THD+N from a 5-V power supply in voiceband frequencies (f < 5 k Hz). A BTL configuration eliminates the need for external coupling capacitors on the output in most applications. Gain is externally configured by means of two resistors and does not require pensation for settings of 2 to 20. Features of the amplifier are a shutdown function for power-sensitive applications as well as internal thermal and short-circuit protection. The TPA4861 works seamlessly with TI's TPA4860 in stereo applications. The amplifier is available in an 8-pin SOIC surface-mount package that reduces board space and facilitates automated assembly.
Audio Input
RF RI 4 IN-
CI 3 IN+
VDD/2
- +
VDD 6 VO1 5
VDD CS
1W
2 BYPASS
- +
VO2...