AUDIO IRS2053 3 Channel Integrated Class D Audio Driver IC with PWM Modulator THE POWER MANAGEMENT LEADER IR Advantage • 3 channel • Integrated analog input • Programmable bidirectional over-current protection with self-reset control • Start and stop click noise reduction • Floating inputs enable easy half-bridge implementation • Programmable preset deadtime for scalable power design • High noise immunity • ±100V ratings deliver up to 150W in output power • PWM frequency up to 800kHz • 48-pin MLPQ • Over temperature The IRS2053 has been designed for high performance Class D Audio applications from 50W to 150W per channel including home theater systems and car audio amplifiers. • Protection input • DC offset detection input Based upon a half bridge topology, the IRS2053 integrates four channels of high-voltage, high-performance Class D audio amplifier drivers with PWM modulators in a single IC. Housed in a compact MLPQ48 package, the new IC shrinks board size by a further 50 percent compared to previous offerings. • Clipping detection The IRS2053 offers error amplifier, PWM comparator, gate driver, and robust protection circuitry. In addition the new 200V device features an analog PWM modulator with frequency up to 800kHz, programmable bidirectional over-current protection (OCP) with self-reset control, under-voltage lockout protection (UVLO), and programmable preset deadtime for a scalable power design. 10 5 2 ± 35V, 4 Ω 1 0.5 0.2 % 0.1 0.05 0.02 0.01 0.005 0.002 0.001 100m 200m 500m 1 2 5 10 20 50 100 200 W For more information, call 310 252-7105 or visit us at www.irf.com Typical THD + N vs Output Power 11099FS IRS2053 Integrated Class D Audio Driver IC with PWM Modulator Digital Audio MOSFETs The IRS2053 audio IC may be paired with an extensive range of IR digital audio MOSFETs addressing output power from 50W to 150W. These MOSFETs, have been optimized around parameters critical to audio performance such as efficiency, THD, and EMI. For detailed performance information, please refer to the MOSFET data sheets available online at www.irf.com. The chipset forms a Class D audio solution that is much smaller than a comparable Class AB design. In a 100W application, for example, the IRS2053 IC and IRF6665 DirectFET® MOSFETs reduce board size by 50% to the previous offerings IC Specification Part Number Channel Offset Voltage Sink/Source Current VCC Range (with UVLO) Min/Max Output Voltage Selectable Dead Time IRS2053MPBF 4 ±100V 0.6 / 0.5A 10-15V 10-15V 45/65/85/105ns Companion Digital Audio MOSFETs DirectFET® Clipping Power Without Heatsink With Heatsink 4 Ohms 8 Ohms 4 Ohms 8 Ohms 50W - 100W IRF6645 IRF6665 IRF6665 IRF6665 100W - 120W IRF6645 IRF6645 IRF6775M IRF6645 IRF6775M 120W - 200W IRFx Families Clipping power 50W - 60W 60W - 100W 100W - 200W Package Load 4 Ohms 8 Ohms TO-220 Full-Pak 5-Pin IRFI4024H-117P IRFI4212H-117P TO-220 — IRFB4212PbF TO-220 Full-Pak 5-Pin IRFI4212H-117P IRFI4212H-117P TO-220 IRFB4212PbF IRFB4212PbF TO-220 Full-Pak 5-Pin IRFI4212H-117P IRFI4019H-117P TO-220 IRFB4212PbF IRFB4019PbF Reference Design: The IRAUDAMP11 reference design speeds development and evaluation. Based upon the IRS2053 IC and the IRF6665 DirectFET® MOSFETs, the IRAUDAMP11 features 120W x 3 channels. The design offers an efficiency of 90% at 120W in the MOSFET stage, and a THD+N of 0.02% at 60W, four ohms (both typical). DirectFET® is a registered trademark of International Rectifier Corp. For more information, call 310.252-7105 or visit us at www.irf.com 11099FS