IRS2093 four channel integrated class D audio IC with PWM modulator

AUDIO
IRS2093 4 Channel Integrated Class D
Audio Driver IC with PWM Modulator
THE POWER MANAGEMENT LEADER
IR Advantage
• 4 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
The IRS2093 has been designed for high performance Class D Audio applications from
50W to 150W including home theater systems and car audio amplifiers.
• 48-pin MLPQ
Based upon a half bridge topology, the IRS2093 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..
The IRS2093 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
10503FS
IRS2093 Integrated Class D Audio Driver IC with PWM Modulator
Digital Audio MOSFETs
The IRS2093 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 IRS2093 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
IRS2093MPBF
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 IRAUDAMP8 reference design speeds development and evaluation. Based upon
the IRS2093 IC and the IRF6665 DirectFET MOSFETs, the IRAUDAMP8 features 120W x
4 channels. The design offers an efficiency of 90% at 120W in the MOSFET stage, and
a THD+N of 0.012% 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
10503FS