17W+17W Class D Speaker Amplifier for Digital Input - BD28623MUV

BD28623MUV is a Class D Speaker Amplifier designed for Flat-panel TVs in particular for space-saving and low-power consumption. This IC delivers an output power of 20W + 20W. This IC employs state-of-the-art Bipolar, CMOS, and DMOS (BCD) process technology. With this technology, the IC can achieve high efficiency. In addition, the IC is packaged in a compact back-surface heat-sink type power package to achieve low power consumption and low heat generation and to eliminate need for external heat-sink. With this package, total output power is only 34W as compared to 40W total output power of package with external heat-sink This product satisfies all needs for drastic downsizing, low-profile structures and powerful high quality playback of sound systems.

* This is a standard-grade product.
For Automotive usage, please contact Sales.
Part Number | BD28623MUV-E2
Status | Recommended
Package | VQFN024V4040
Unit Quantity | 2500
Minimum Package Quantity | 2500
Packing Type | Taping
RoHS | Yes








Maximum Output Gain[dB]


Digital Audio I/F


Speaker Amp Outputs


Speaker Amp THD+N[%]


Speaker Amp PSRR[dB]


Speaker Amp Input Type

Digital Signal

Speaker Amp Type

Class D

Speaker Amp Output Power(Max.)[W]


Operating Temperature (Min.)[℃]


Operating Temperature (Max.)[℃]



  • 1 Digital Audio Interface
    I²S format
    SDATA: 16 / 20 / 24bit
    LRCLK (fS): 32kHz / 44.1kHz / 48kHz
    BCLK: 64fS (fixed)
    MCLK: 256fS / 512fS Automatic Identification
  • Low supply current at RESET mode.
  • Slew rate controller
    ; No need snubber circuit (VCC ≤ 22V)
  • Output Feedback Circuitry which prevents decrease
    of sound quality caused by change of power supply
    voltage, achieves low noise and low distortion,
    So the large electrolytic-capacitors for VCC
    bypass is able to be eliminated.
  • Variable Gain (17dB / 20dB / 26dB)
  • Wide power supply voltage range (8.5V to 24V)
  • High efficiency, low heat
  • Pop noise prevention at power supply on / off
  • Soft Muting Technology
  • High reliability design by built-in protection circuits
    • Overheat protection
    • Under voltage protection
    • Output short protection
    • Output DC voltage protection
    • Clock stop protection (MCLK, BCLK, LRCLK)
  • Small package (VQFN024V4040)