TDA8933B

General description

The TDA8933B is a high-efficiency class D amplifier with low power dissipation.

The continuous time output power is 2 x 10 W in a stereo half-bridge application (R_L = 8 Ohm) or 1 x 20 W in a mono full-bridge application (R_L =16 Ohm). Due to the low power dissipation the device can be used without any external heat sink when playing music. Due to the implementation of Thermal Foldback (TF) the device remains operating with considerable music output power without the need for an external heat sink, even for high supply voltages and/or lower load impedances.

The device has two full differential inputs driving two independent outputs. It can be used in a mono full-bridge configuration (Bridge-Tied Load (BTL)) or as stereo half-bridge configuration (Single-Ended (SE)).

Features

• Operating voltage from 10 V to 36 V asymmetrical or +-5 V to +-18 V symmetrical
• Mono bridge-tied load (full-bridge) or stereo single-ended (half-bridge) application
• Application without heat sink using thermally enhanced small outline package
• High efficiency and low-power dissipation
• Thermal foldback to avoid audio holes
• Current limiting to avoid audio holes
• Full short circuit proof across load and to supply lines (using advanced current protection)
• Internal or external oscillator (master-slave setting) that can be switched
• No pop noise
• Full differential inputs

Products/packages

Products in the above table are all in production. Some variants are discontinued; click here for information on these variants.

Pricing/ordering/availability

Applications

• Flat-panel television sets
• Flat-panel monitor sets
• Multimedia systems
• Wireless speakers
• Mini/micro systems
• Home sound sets

Related applications
50-60 Hz CRT integrated DTV (TV210D)
DVB-T iDTV reference solution (TV505D)
Mid-range integrated DTV (TV810)
Mainstream integrated LCD DTV reference designs TV520
LCD TV - MMS functionality
Highest-quality digital TV system TV520/8x

Design support

Application Notes

AN10436_1; TDA8932B/33(B) Class-D audio amplifier (18-Dec-07)

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