This Sure Electronics audio amplifier board integrates IR's High Voltage, high performance class D audio amplifier driver IRS2092SPBF and 200V Single N-Channel HEXFET Power MOSFET IRFB4227 to deliver 750 watt of power. This amplifier board supports mono amplification by using one channel half bridge topology.
Highlights
- Self-oscillating half-bridge topology
- Capable of 750W RMS output @ 4 Ohm continuously
- Requires 55 to 75 VDC power supply
Product Details
Sure Electronics AA-AB31431 1x750W IRS2092 4 Ohm Class D Audio Amplifier Board
If you absolutely have to have 750 clean watts of stereo power, look no further than this amplifier board. It integrates high performance class D audio amplifier driver IRS2092SPBF and 200V Single N-Channel HEXFET Power MOSFET IRFB4227 and uses one channel half bridge topology to support mono amplification.
Two 55 to 75 VDC high-voltage power supplies are required for operation; each power supply dedicates its full output potential to a single rail for maximum output. This results in increased high-fidelity output, high dynamic range, low distortion, and a wide 20 to 22,000 Hz frequency response.
ELECTRICAL SPECIFICATIONS
Specifications typical @ +25℃ , Powered by ±72V DC, unless otherwise noted. Specifications subject to change without notice.
|
Parameter
|
Conditions
|
Min.
|
Typ.
|
Max.
|
Units
|
|
Power Supply
|
-
|
±55
|
±72
|
±75
|
VDC
|
|
Idle Power
|
SD Floating, FAN ON
|
-
|
4.5
|
7
|
W
|
|
|
SD Floating, FAN OFF
|
-
|
3
|
5
|
W
|
|
Standby Power
|
SD Connected to GND, FAN OFF
|
-
|
0.6
|
3
|
W
|
|
Maximum Current
|
750W @ 4Ohm
|
-
|
11.3
|
-
|
A
|
|
Efficiency
|
750W @ 4Ohm
|
89
|
-
|
94
|
%
|
|
Under Voltage Protection
|
-
|
-
|
±50
|
-
|
V
|
|
Over Voltage Protection
|
-
|
-
|
±80
|
-
|
V
|
|
Over Temperature Protection
|
-
|
-
|
100
|
-
|
℃
|
|
Minimum Load Impedance
|
-
|
-
|
3
|
-
|
Ω
|
|
Switching Frequency
|
SD Floating
|
-
|
402
|
-
|
KHz
|
|
Temperature
|
-
|
-
|
55
|
-
|
°C
|
AUDIO PERFORMANCE
Specifications typical @ +25℃ , Powered by ±72V DC, unless otherwise noted. Specifications subject to change without notice.
|
Parameter
|
Conditions
|
Min.
|
Typ.
|
Max.
|
Units
|
|
Gain
|
-
|
29
|
31
|
33
|
dB
|
|
Input Sensitivity (RMS)
|
@4Ω, 750W, 1KHz
|
-
|
1.78
|
-
|
mV
|
|
Input Impedance
|
-
|
-
|
3.3
|
-
|
KΩ
|
|
Output Power
|
@4Ω THD+N 1%
|
-
|
590
|
-
|
W
|
|
|
@4Ω THD+N 10%
|
-
|
750
|
-
|
W
|
|
Bandwidth @ ±3dB
|
@4Ω
|
20
|
-
|
20K
|
Hz
|
|
THD
|
@4Ω, 1W, 1KHz
|
-
|
0.021
|
-
|
%
|
|
|
@4Ω, 10W, 1KHz
|
-
|
0.082
|
-
|
%
|
|
Output Noise Level
|
A-weighting, Input Connected to GND
|
-
|
267
|
-
|
µV
|
|
SNR
|
590W @4Ω THD+N 1%
|
-
|
100
|
-
|
dB
|
