TPA6101A2 Datasheet | Texas Instruments

TPA6101A2 50Ćm W ULTRALOWĆVOLTAGE, FIXEDĆGAIN STEREO HEADPHONE AUDIO POWER AMPLIFIER SLOS331C - AUGUST 2000 - REVISED MARCH 2007 D Minimal External ponents Required D 1.6-V to 3.6-V Supply Voltage Range D 50-m W Stereo Output D Low Supply Current . . . 0.75 m A D Low Shutdown Current . . . 50 n A D Gain Set Internally to 2 d B D Pop Reduction Circuitry D Internal Mid-Rail Generation D Thermal and Short-Circuit Protection D Surface-Mount Packaging - 3-mm y 5-mm MSOP Package (DGN) - 5-mm y 6-mm SOIC Package (D) - 2,5-mm y 2,5-mm Micro Star Junior E BGA Package (ZQY) D or DGK PACKAGE (TOP VIEW) BYPASS GND SHUTDOWN IN2- 1 2 3 4 8 IN1- 7 VO1 6 VDD 5 VO2 ZQY PACKAGE (TOP VIEW) (A1) BYPASS (B1) GND (C1) SHUTDOWN (D1) IN2- (A4) IN1- (B4) VO1 (C4) VDD (D4) VO2 description The TPA6101A2 is a stereo audio power amplifier packaged in an 8-pin SOIC package, an 8-pin MSOP package, or a 15-ball BGA package, capable of delivering 50 m W of continuous RMS power per channel into 16-Ω loads. Amplifier gain is internally set to 2 d B (inverting) to save board space by eliminating six external resistors. The TPA6101A2 is optimized for battery applications because of its low supply current, shutdown current, and THD+N. To obtain the low-supply-voltage range, the TPA6101A2 biases BYPASS to VDD/4. When driving a 16-Ω load with 40-m W output power from 3.3 V, THD+N is 0.08% at 1 k Hz, and less than 0.2% across the audio band of 20 Hz to 20 k Hz. For 30 m W into 32-Ω loads, the THD+N is reduced to less than 0.06% at 1 k Hz, and is less than 0.3% across the audio band of 20 Hz to 20 k Hz. typical application circuit Audio Input Audio...