Tripath Technology, Inc. – Technical Information

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TPS4100A – KL/Rev. 1.1/11.05

TPS4100A

FOUR CHANNEL BRIDGED OUTPUT POWER STAGE

Technical Information

Rev i sion 1.1 - Nov e mber 2005

GENERAL DESCRIPTION

The TPS4100A is a 4 channel bridged (16 power transistors) output power stage. The TPS4100A

accepts 5V CMOS logic signals from a Class-T processor, such as TCD6001, to create a high

fidelity 4-channel audio amplifier. The TPS4100A has been designed specifically for automotive

head unit applications operating on a single 10-26V supply.

APPLICATIONS

Automotive Head Units and Trunk

Amplifiers

DVD Receivers

Multimedia Speaker Systems

BENEFITS

4-channel output stage – with integrated

driver and FETs - in a single 32-pin SSIP

package

Low external component count

Single-supply operation

FEATURES

Four H-Bridge outputs

High Efficiency

High Power @25.0V

High Efficiency

88% @ 100W 4

Ω

AM “Low EMI” mode with connection to

appropriate Class-T controller

Mates seamlessly with TCD6001 Digital Input

Class-T controller

Mute and Stand-By function

Protection Modes:

Output Short to VPP and Ground

Output Short across Load

Load Dump Protection

Over-/Under-Voltage Protection

Over-current Protection

Over-temperature Protection

Fortuitous Open Ground