Philips UM10155 User Manual

UM10155
Discrete Class D High Power Audio Amplifier
Rev. 02 — 5 September 2006 User manual
Document information
Info Content
Keywords Class D Audio Amplifier, Universal Class D, UcD, PWM Audio Amplifier,
High Power Audio.
Abstract This user manual describes the operating instructions and the most
important background information of the Philips Semiconductor Discrete
Class D High Power Audio Amplifier Demonstrator Board. With proper
heatsinking of the Power MOSFETs and a well dimensioned power supply,
the PWM amplifier is capable of supplying 200 W of high quality audio
power into a 4 Ω loudspeaker.

Philips UM10155 Specifications

General

Brand	Philips
Model	UM10155
Category	Amplifier
Language	English

Summary

Introduction

Circuit Diagram

Printed-circuit Board Layout

Specifications

Pop-less/click-less Start-up and Shutdown

Describes the circuit provision for pop-less start-up and shutdown.

Overcurrent Protection

Details the circuit's provision for monitoring current and protecting MOSFETs.

Important Notice

Highlights the board's purpose and limitations for long-term operation or extreme conditions.

Wiring Diagram and Powering-up

Adding External Features

Electronic Enabling/Disabling of the Amplifier

Explains how to electronically enable or disable the amplifier using a signal.

Short-circuit and Overcurrent Protection

Details a circuit for short-circuit and overcurrent protection using ICs and logic.

Sonic Performance versus Efficiency Trade-off

Discusses the trade-off between dead-time, efficiency, and sonic performance, including thermal management.

Legal Information

Definitions

Defines terms like "Draft" and "Applications" used in the document.

Disclaimers

States that information is believed accurate but no warranties are given.

Patents

Notifies about patents covering the device, specifically WO 03/090343.

Trademarks

States that referenced brands and product names are their respective owners' property.