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Power Amplifier. IRAUDAMP10 Datasheet

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Power Amplifier. IRAUDAMP10 Datasheet






IRAUDAMP10 Amplifier. Datasheet pdf. Equivalent




IRAUDAMP10 Amplifier. Datasheet pdf. Equivalent





Part

IRAUDAMP10

Description

300W x 2 Channel Class D Audio Power Amplifier



Feature


IRAUDAMP10 300W x 2 Channel Class D Audi o Power Amplifier Using the IRS2052M an d IRF6775 By Jun Honda, Yasushi Nishimu ra and Liwei Zheng CAUTION: Internatio nal Rectifier suggests the following gu idelines for safe operation and handlin g of IRAUDAMP10 Demo board; Always wea r safety glasses whenever operating Dem o Board Avoid personal contact with ex posed metal surfac.
Manufacture

International Rectifier

Datasheet
Download IRAUDAMP10 Datasheet


International Rectifier IRAUDAMP10

IRAUDAMP10; es when operating Demo Board Turn off D emo Board when placing or removing meas urement probes www.irf.com IRAUDAMP10 REV 1.1 Page 1 of 34 TABLE OF CONTEN TS PAGE INTRODUCTION ................ ....................................... ....................................... ....................................... .......... 3 SPECIFICATIONS ........... ...................


International Rectifier IRAUDAMP10

........................................ ....................................... ................................ 3 CONN ECTION SETUP .......................... ....................................... ....................................... ............................. 5 CONNECT OR DESCRIPTION ........................ ....................................... ...................


International Rectifier IRAUDAMP10

........................................ 5 TEST PROCEDURES..................... ....................................... ....................................... .................................... 6 PERFORMANCE AND TEST GRAPHS ........... ....................................... ....................................... ................. 7 SOFT CLIPPING ..... ...................

Part

IRAUDAMP10

Description

300W x 2 Channel Class D Audio Power Amplifier



Feature


IRAUDAMP10 300W x 2 Channel Class D Audi o Power Amplifier Using the IRS2052M an d IRF6775 By Jun Honda, Yasushi Nishimu ra and Liwei Zheng CAUTION: Internatio nal Rectifier suggests the following gu idelines for safe operation and handlin g of IRAUDAMP10 Demo board; Always wea r safety glasses whenever operating Dem o Board Avoid personal contact with ex posed metal surfac.
Manufacture

International Rectifier

Datasheet
Download IRAUDAMP10 Datasheet




 IRAUDAMP10
IRAUDAMP10
300W x 2 Channel Class D Audio Power Amplifier
Using the IRS2052M and IRF6775
By
Jun Honda, Yasushi Nishimura and Liwei Zheng
CAUTION:
International Rectifier suggests the following guidelines for safe operation and handling of
IRAUDAMP10 Demo board;
Always wear safety glasses whenever operating Demo Board
Avoid personal contact with exposed metal surfaces when operating Demo Board
Turn off Demo Board when placing or removing measurement probes
www.irf.com
IRAUDAMP10 REV 1.1
Page 1 of 34




 IRAUDAMP10
TABLE OF CONTENTS
PAGE
INTRODUCTION............................................................................................................................................... 3
SPECIFICATIONS ............................................................................................................................................ 3
CONNECTION SETUP ..................................................................................................................................... 5
CONNECTOR DESCRIPTION ......................................................................................................................... 5
TEST PROCEDURES....................................................................................................................................... 6
PERFORMANCE AND TEST GRAPHS .......................................................................................................... 7
SOFT CLIPPING............................................................................................................................................. 10
EFFICIENCY................................................................................................................................................... 11
THERMAL CONSIDERATIONS ..................................................................................................................... 11
THERMAL INTERFACE MATERIALS PRESSURE CONTROL ................................................................................. 12
POWER SUPPLY REJECTION RATIO (PSRR)............................................................................................ 14
SHORT CIRCUIT PROTECTION RESPONSE .............................................................................................. 15
IRAUDAMP10 OVERVIEW ............................................................................................................................ 16
FUNCTIONAL DESCRIPTIONS..................................................................................................................... 18
IRS2052M GATE DRIVER IC ......................................................................................................................... 18
SELF-OSCILLATING FREQUENCY .................................................................................................................... 19
ADJUSTMENTS OF SELF-OSCILLATING FREQUENCY......................................................................................... 19
INTERNAL CLOCK OSCILLATOR....................................................................................................................... 19
SELECTABLE DEAD-TIME................................................................................................................................ 20
PROTECTION SYSTEM OVERVIEW ............................................................................................................ 21
CLICK AND POP NOISE REDUCTION ......................................................................................................... 23
BUS PUMPING............................................................................................................................................... 24
INPUT SIGNAL AND GAIN SETTING ........................................................................................................... 24
GAIN SETTING............................................................................................................................................... 25
IRAUDAMP10 FABRICATION MATERIALS................................................................................................. 27
IRAUDAMP10 PCB SPECIFICATIONS......................................................................................................... 31
REVISION CHANGES DESCRIPTIONS........................................................................................................ 34
www.irf.com
IRAUDAMP10 REV 1.1
Page 2 of 34




 IRAUDAMP10
Introduction
The IRAUDAMP10 Demo board is a reference design which uses only one IC (IRS2052M) to derive
appropriate input signals, amplify the audio input, and achieve a two-channel 280 W/ch (4, THD+N=1%)
half-bridge Class D audio power amplifier. The reference design demonstrates how to use the IRS2052M
Class D audio controller and gate driver IC, implement protection circuits, and design an optimum PCB
layout using IRF6775 DirectFET MOSFETs. The reference design contains all the required housekeeping
power supplies for ease of use. The two-channel design is scalable, for power and number of channels.
Applications
AV receivers
Home theater systems
Mini component stereos
Powered speakers
Sub-woofers
Musical Instrument amplifiers
Automotive after market amplifiers
Features
Output Power:
Residual Noise:
Distortion:
Efficiency:
Multiple Protection Features:
PWM Modulator:
300W x 2 channels (4, THD+N=1%)
or 370W x 2 channels (4, THD+N=10%)
220V, IHF-A weighted, AES-17 filter
0.008% THD+N @ 100W, 4
90% @ 300W, 4, single-channel driven, Class D stage
Over-current protection (OCP), high side and low side
Over-voltage protection (OVP),
Under-voltage protection (UVP), high side and low side
Over-temperature protection (OTP)
Self-oscillating half-bridge topology with optional clock synchronization
Specifications
General Test Conditions (unless otherwise noted)
Supply Voltages
±50V
Load Impedance
4
Self-Oscillating Frequency
500kHz
Gain Setting
30.8dB
Notes / Conditions
No input signal, Adjustable
1Vrms input yields rated power
Electrical Data
Typical
Notes / Conditions
IR Devices Used
IRS2052M Audio Controller and Gate-Driver,
IRF6775 DirectFET MOSFETs
Modulator
Self-oscillating, second order sigma-delta modulation, analog input
Power Supply Range
± 25V to ±50V
Bipolar power supply
Output Power CH1-2: (1% THD+N)
300W
1kHz, ±50V
Output Power CH1-2: (10% THD+N)
370W
1kHz, ±50V
www.irf.com
IRAUDAMP10 REV 1.1
Page 3 of 34



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