TPA2037D1 Datasheet | Texas Instruments

.ti. SLOS648B - OCTOBER 2009 - REVISED JUNE 2010 3.2W Mono Class-D Audio Power Amplifier With 6-d B Gain and Auto Short-Circuit Recovery Check for Samples: TPA2037D1 Features - Powerful Mono Class-D Speaker Amplifier - 3.24 W (4 Ω, 5 V, 10% THDN) - 2.57 W (4 Ω, 5 V, 1% THDN) - 1.80 W (8 Ω, 5 V, 10% THDN) - 1.46 W (8 Ω, 5 V, 1% THDN) - +6 d B Fixed Gain - Integrated Image Reject Filter for DAC Noise Reduction - Low Output Noise of 20 m V - Low Quiescent Current of 1.5 m A - Differential Input Impedance of 300 kΩ - Auto-Recovering Short-Circuit Protection - Thermal-Overload Protection - Filter-Free Mono Class-D Amp - 9-Ball 1,21 mm × 1,16 mm 0,4mm Pitch WCSP APPLICATIONS - Wireless or Cellular Handsets and PDAs - Portable Navigation Devices - General Portable Audio Devices DESCRIPTION The TPA2037D1 is a 3.2 W high efficiency filter-free class-D audio power amplifier (class-D amp) with 6 d B of fixed gain in a 1.21 mm x 1.16 mm wafer chip scale package (WCSP). The device requires only one external ponent. Features like 95% efficiency, 1.5 m A quiescent current, 0.1 m A shutdown current, 81-d B PSRR, 20 m V output noise, and improved RF immunity make the TPA2037D1 class-D amplifier ideal for cellular handsets. A start-up time of 4 ms with no audible pop makes the TPA2037D1 ideal for PDA and smart-phone applications. APPLICATION...