TPA2038D1

www.ti.com TPA2038D1 SLOS697A – AUGUST 2011 – REVISED OCTOBER 2012 3.2 W Mono Class-D Audio Power Amplifier With Selectable Gain and Auto-Recovering Short-Circuit Protection Check for Samples: TPA2038D1 FEATURES 1 Filter-Free Mono Class-D Speaker Amp GAIN Pin Selects Between 6 dB and 12 dB 3.2 W into 4 Ω from 5 V supply at 10% THD+N Powerful Mono Class-D Speaker Amplifier – 1% at 1.4 W into 8 Ω from 5 V Supply – 1% at 2.5 W into 4 Ω from 5 V Supply Integrated Image Reject Filter for DAC Noise Reduction Low Output Noise of 20 μV Low Quiescent Current of 1.5 mA Auto-Recovering Short-Circuit Protection Thermal-Overload Protection 9-Ball 1,21 mm × 1,16 mm 0,4 mm Pitch WCSP APPLICATIONS Wireless or Cellular Handsets and PDAs Portable Navigation Devices General Portable Audio Devices DESCRIPTION The TPA2038D1 is a 3.2 W into 4-ohm (10% THD) high efficiency filter-free class-D audio power amplifier. The GAIN pin sets gain to either 6 dB or 12 dB. Features like 95% efficiency, 1.5 mA quiescent current, 0.5 μA shutdown current, 81 dB PSRR, 20 μV output noise, and improved RF immunity make the TPA2038D1 class-D amplifier ideal for cellular handsets. A start-up time is within 4 ms with no turnon pop. The TPA2038D1 is available in a 1.21 mm x 1.16 mm, 0.4 mm pitch wafer chip scale package (WCSP). APPLICATION CIRCUIT GAIN Gain Select IN+ + – IN- Internal Oscillator PWM EN Bias Circuitry To battery VDD Cs VOH-Bridge VO+ GND TPA 2038D1 9-BALL 0.4mm PITC...