| Motor Type |
BDC Motor |
| H bridge |
4 |
| Micro Step |
NA |
| VDD (Min) (V) |
4.5 |
| VDD (Max) (V) |
25 |
| Peak Current (A) |
11.7 |
| Ron (mΩ) |
50 |
| Control Mode |
NA |
| CTRL IF |
I2C
I2S |
| Temperature |
-40℃~105℃ |
| Function |
Current Sense
Load Diagnostic Functions |
| Package (mm) |
10X10-64L |
AEC-Q100 Qualified for Automotive Applications
– Temperature Grade 2: –40°C to +105°C, TA
Wide Supply Voltage Range: 4.5V – 25V
Input interface
– Support I2S, 4/8/16 slots TDM
– Input Sample Rates: 44.1/48/96/192kHz
Low latency signal path: 100μs (48kHz)
Output capability
– Up to 2.1MHz Output Switching Frequency
– Output Power:
·4X23W@4Ω, 14.4V
·4X50W@2Ω, 14.4V
·4X65W@4Ω, 25V
– Support 4Ω, 2Ω Load
– High Resolution Bandwidth Up to 80kHz(I2S 192kHz)
Integrated Self Protection：
– Over Voltage and Under Voltage Protection
– Over Temperature Protection
– Temperature Warning Protection
– DC Offset Protection
– Short Circuit Protection
– Over Current Protection
– Load Dump Protection(40V)
AC and DC Load Diagnostic Functions：
– Output Short to Power or GND
– Shorted Output or Open Output Load
– Selectable Internal or External Generated
waveform for AC Load Diagnostic
Real Time Current Sense
Legacy Mode without I2C Control
LQFP 10X10-64L package(exposed pad up)
AWD8904 is a digital input 4 channel automotive H-driver amplifier with I2C control that delivers up to 65W output at 25V power supply with 4Ω load, designed for high-performance LC feedback architecture for automotive motor products. The output noise of the amplifier is as low as 11μV to achieve extremely high signal-to-noise ratio, and the full power range output distortion is not affected by the nonlinearity of LC devices, achieving an excellent level. The output switching frequency can reach up to 2.1MHz, and the extremely high working frequency can eliminate the AM-band interference and reduces output filter size and cost. AWD8904 supports spread spectrum to enhance EMI performance.
AWD8904 supports all AC and DC diagnostic requirements for all diagnostic scenarios. The device uses a compact and lightweight LQFP 10X10-64L package(exposed pad up) for better use by customers in multi-channel power amplifier design.
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