power management product selection guide - International Rectifier
power management product selection guide - International Rectifier
power management product selection guide - International Rectifier
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PRODUCT FAMILIES | Class D Audio<br />
Gate Driver ICs<br />
<strong>International</strong> <strong>Rectifier</strong> MOSFET driver ICs<br />
enable audio system manufacturers to efficiently<br />
design their Class D audio amplifiers<br />
up to the 1000 watt level, with better quality.<br />
Audio components, from battery-<strong>power</strong>ed<br />
portables to high-end multimedia systems<br />
can now be made more compact and operate<br />
with greater safety margins.<br />
IR P/N<br />
IRS2011(S)PBF<br />
IRS20124SPBF<br />
IRS20955SPBF<br />
Description<br />
The IRS2011 is a high <strong>power</strong>, high speed <strong>power</strong> MOSFET driver with independent<br />
high- and low-side referenced output channels.<br />
The IRS20124S is a high voltage, high speed <strong>power</strong> MOSFET driver with internal deadtime<br />
and shutdown functions, for applications above 500W per channel.<br />
The IRS20955 is a high voltage, high speed MOSFET driver with floating PWM input.<br />
Specifications IRS2011(S)PbF IRS20124(S)PbF IRS20955(S)PbF<br />
Offset Voltage<br />
200V<br />
200V<br />
200V~ + /-100V<br />
Sink/Source Current 1/1 1.2/1.0 1.2/1.0A<br />
V CC Range (with UVLO)<br />
10-20V 10-18V 10-18V<br />
Min/Max Output Voltage 10-20V 10-18V 10-18V<br />
Propagation Delay: T ON/OFF 60ns 85/70n 105/90ns<br />
Max Delay Matchine 20ns Specified by the dead time Specified by the dead time<br />
Programmability IRS2011(S)PbF IRS20124(S)PbF IRS20955(S)PbF<br />
Selectable Dead Time<br />
B-directional Over-<br />
Current Sensing with<br />
Self-Reset Function<br />
-<br />
-<br />
15/25/35/45n<br />
Features IRS2011(S)PbF IRS20124(S)PbF IRS20955(S)PbF<br />
B-Directional Over-<br />
Current Sensing (no<br />
external sense resistor)<br />
-<br />
Max Frequency<br />
1MHz<br />
1MHz<br />
800kHz<br />
Logic Compatible Input 3.3/5.0 3.3/5.0 3.3/5.0V<br />
Max Over-Current<br />
Propagation Delay<br />
NA<br />
300ns<br />
600ns<br />
Floating PWM Input<br />
-<br />
-<br />
Max Power<br />
500W<br />
1000W<br />
500W<br />
Shut<br />
Down<br />
-<br />
internal/external<br />
Protection Logic Control<br />
-<br />
-<br />
-<br />
15/25/35/45ns<br />
Companion DirectFET ® MOSFETs<br />
Part Number Package V DS R DS(on) @10V typ Q G typ Q SW typ<br />
Companion MOSFETs<br />
<strong>International</strong> Rectfier’s innovative DirectFET<br />
MOSFETs eliminate the need for a heatsink –<br />
shrinking circuit size, providing greater layout<br />
flexibility and reducing overall amplifier<br />
system cost. IR’s IRF14024Hx-series of halfbridge<br />
N-channel audio MOSFETs offer an<br />
alternative for less demanding applications<br />
IRAUDAMP4<br />
Reference Design Features:<br />
• 120W + 120W (1%, THD) peak stereo<br />
(2CH) output<br />
• No heatsink<br />
• Small size: 40mm x 80mm<br />
• THD+N: 0.004% @ 1kHz, 60W, 4Ω<br />
• Residual noise: 52µV, IHF-A weighted,<br />
AES-17 filter<br />
• High efficiency: 96% @ 120W, 4Ω<br />
• Multiple protection features<br />
IRF6645 SJ 100V 28mΩ 14nC 5.6 nC<br />
IRF6665 SH 100V 53mΩ 8.7nC 3.4 nC<br />
Companion IRFI4024HX SERIES MOSFETs<br />
Part Number Package V DS R DS(on) @10V typ Q G typ Q SW typ<br />
IRFI4024H-117P T0-220FP, 5P 55V 48mΩ 8.9nC 4.3nC<br />
IRFI4212H-117P T0-220FP, 5P 100V 58mΩ 12nC 6.9nC<br />
IRFI4019H-117P T0-220FP, 5P 150V 80mΩ 13nC 4.1nC<br />
IRFI4020H-117P T0-220FP, 5P 200V 80mΩ 19nC 6.8nC<br />
16<br />
POWER MANAGEMENT SELECTION GUIDE / INTERNATIONAL RECTIFIER<br />
www.irf.com
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