The TPA3116D2DADR is a Class-D stereo amplifier from TI's SpeakerGuard™ series. It delivers 50W per channel into a 4Ω load from a single supply rail spanning 4.5V to 26V. Built-in short-circuit and thermal protection plus a dedicated mute pin simplify the system-level protection scheme. Differential inputs reject ground-loop noise common in multi-channel installations. The 32-HTSSOP package with exposed pad draws heat to the PCB copper plane — no external heatsink needed for typical music playback at moderate levels.
TPA3116D2DADR TI Class-D Amp 50W x 2 @ 4Ω 32-HTSSOP
MPNTPA3116D2DADR
End of Life
Texas Instruments, Class D, SpeakerGuard™, TPA3116D2DADR, 50W x 2 @ 4Ω, 4.5V-26V supply, -40°C to 85°C, 32-HTSSOP.
$3.38Ref. price · indicative, final on quote
Packaging32-TSSOP (0.240", 6.10mm Width) Exposed Pad
RoHSROHS3 Compliant
SeriesSpeakerGuard™
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Type | Class D |
| Series | SpeakerGuard™ |
| Output type | 2-Channel (Stereo) |
| Mounting | Surface Mount |
| Supply voltage | 4.5V ~ 26V |
| Max output power x channels @ load | 50W x 2 @ 4Ohm |
| Operating temperature | -40°C ~ 85°C (TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Features | Differential Inputs, Mute, Short-Circuit and Thermal Protection, Shutdown |
| Case | 32-TSSOP (0.240\", 6.10mm Width) Exposed Pad |
Product details
Frequently asked questions
What is the output power rating of TPA3116D2DADR per channel?
50W per channel into a 4Ω load, measured at the maximum output before clipping. That's the 2-channel (stereo) configuration driving a 4Ω speaker on each channel.
Is TPA3116D2DADR obsolete or active?
Active. Texas Instruments lists it as current production with no end-of-life notice. ROHS3 compliant.
Is TPA3116D2DADR compatible with single supply operation?
Yes, it operates from a single supply rail between 4.5V and 26V. No negative rail needed.
What is the difference between TPA3116D2 and TPA3116D2DADR?
The TPA3116D2DADR is the tape-and-reel packaged variant of the TPA3116D2. The die and electrical specifications are identical. The 'DADR' suffix indicates the 32-HTSSOP package in tape-and-reel format.