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Data Sheet No. PD60276
IRS20954S
Protected Digital Audio Driver
Features
• • • • • • • • Floating ...
www.DataSheet4U.com
Data Sheet No. PD60276
IRS20954S
Protected Digital Audio Driver
Features
Floating PWM input enables easy half bridge implementation Integrated programmable bi-directional over-current protection with self-reset function Programmable compensated preset deadtime for improved THD performances High noise immunity ±100 V high
voltage ratings deliver up to 500 W output power 3.3 V / 5 V logic compatible input Operates up to 800 kHz RoHS compliant
Product Summary
VOFFSET (max) Io+ Gate driver Selectable Deadtime Propagation delay OC protection delay Io -
± 100 V
1.0 A 1.2 A 15 ns, 25 ns, 35 ns, 45 ns 90 ns 1 µs (max)
Description
The IRS20954 is a high
voltage, high speed
MOSFET driver with floating PWM input, specially designed for Class D audio amplifier applications. The bi-directional current sensing requires no external shunt resistors. It can capture over-current conditions at either positive or negative load current direction. A built-in control block provides secure protection sequence against over-current conditions, including a programmable reset timer. The internal deadtime generation block provides accurate gate switch timing and enables optimum deadtime settings for better audio performances, such as THD and audio noise floor.
Package
16-Lead SOIC (narrow body)
Typical Connection
IRS 20954 S
VDD CSD IN PWM VSS NC VREF CSH VB HO VS NC VCC LO COM Vcc 12 V Speaker +B
(Please refer to Lead Assignments for correct pin configuration...