TFA9815

www.DataSheet4U.com TFA9815 Stereo full-bridge audio amplifier 2 x 17 W Rev. 01 — 16 December 2008 Preliminary data sheet 1. General description The TFA9815 is a 2-channel power comparator for high-efficiency class D audio amplifier systems. It contains two full-bridge Bridge-Tied Load (BTL) power stages, drive logic, protection control logic and full differential input comparators. By using this power comparator a compact closed-loop self-oscillating digital audio amplifier system or open-loop system can be built. The continuous output power is 2 ×17 W in a full-bridge BTL application. The TFA9815 does not require a heat sink and operates using an asymmetrical supply voltage. 2. Features I I I I I I Stereo full-bridge audio amplifier for class D applications No external heat sink required Operating voltage range: asymmetrical from 8 V to 20 V Thermally protected Zero dead-time switching Current-limiting (no audible interruptions) 3. Applications I I I I I I Self-oscillating or open-loop class D audio amplifier applications Flat-panel television sets Flat-panel monitors Multimedia systems Wireless speakers High-end CRT television sets 4. Quick reference data Table 1. Quick reference data VP = 12 V; fosc = 550 kHz; Tamb = 25 °C; typical application diagram Figure 12, unless otherwise specified. Symbol General VP IP supply voltage supply current single, asymmetrical supply (VDD - VSS) Sleep mode 8 12 110 20 200 V µA Parameter Conditions Min Typ Max Unit NXP Semiconductors www.Da...