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Analog Devices SSM3582ACPZ-R7 — Logic ICs
Analog Devices

SSM3582ACPZ-R7 Class D Audio Amp, 31.76W x 2 @ 4Ω

MPNSSM3582ACPZ-R7
End of Life

Analog Devices SSM3582ACPZ-R7, stereo Class D audio amplifier, 31.76 W x 2 into 4 Ω, 4.5 V to 16 V supply, -40°C to 85°C, 40-LFCSP-WQ (6x6) exposed pad, surface mount.

$10.55Ref. price · indicative, final on quote
SSM3582ACPZ-R7 datasheet
Packaging40-WFQFN Exposed Pad, CSP
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

SSM3582ACPZ-R7 Technical Specifications
ParameterValue
TypeClass D
Output type2-Channel (Stereo)
Mounting typeSurface Mount
Voltage4.5V ~ 16V
Max output power x channels @ load31.76W x 2 @ 4Ohm
Operating temperature-40°C ~ 85°C
PackageTape & Reel (TR); Cut Tape (CT)
Case40-WFQFN Exposed Pad, CSP

Product details

31.76 W per channel into 4 Ω — the headline number that decides the speaker load

The Analog Devices SSM3582ACPZ-R7 is a stereo Class D audio power amplifier delivering 31.76 W per channel into a 4 Ω load from a nominal supply within its 4.5 V to 16 V range. That power level puts it in the mid-power bracket — enough to drive a pair of bookshelf speakers in a soundbar, a powered bookshelf monitor, or a multi-room audio zone, without the thermal management headache of a linear Class AB stage. The Class D architecture means most of the heat stays in the load, not the package, which is why a 40-LFCSP-WQ (6x6) exposed-pad package can handle this output.

The 4.5 V to 16 V supply range covers the common audio rails: a 5 V USB bus, a 12 V automotive battery line (with cranking margin), or a regulated 15 V supply from a set-top box or active speaker PSU.

Package and thermal — the exposed pad is not optional

At 31.76 W output, the Class D efficiency keeps junction temperatures manageable, but without that pad connection the part will hit thermal shutdown under sustained high-level playback. The 6x6 mm footprint is compact enough for a two-layer board if the ground plane is solid underneath.

Frequently asked questions

Can SSM3582ACPZ-R7 be used as a replacement for SSM3582ACPZ?

Yes — the SSM3582ACPZ-R7 is electrically identical to the base SSM3582ACPZ. The only difference is the packaging medium: -R7 ships in Tape & Reel, while SSM3582ACPZ ships in Tray. Both are the same die, same 31.76 W output, same 40-LFCSP-WQ package, same supply range. If your pick-and-place line is set up for reels, the -R7 is the correct order code; if you need tray for prototyping or low-volume hand assembly, order the SSM3582ACPZ.

What is the maximum output power per channel of SSM3582ACPZ-R7?

31.76 W per channel into a 4 Ω load, with both channels driven. That figure assumes the supply voltage is within the 4.5 V to 16 V range and the load is purely resistive. Real-world speaker impedance dips below 4 Ω at certain frequencies, which will increase current demand and may trigger the over-current protection — the 4 Ω rating is the design target, not a hard limit.

Is SSM3582ACPZ-R7 lead-free?

Yes — it is ROHS3 compliant, which means it is lead-free and also free of the other restricted substances under the ROHS directive. No special handling beyond standard MSL precautions is needed.