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TPA3140D2PWPR

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Texas Instruments Audio Amplifiers, HTSSOP-28-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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TPA3140D2PWPR

Texas Instruments · Audio Amplifiers · HTSSOP-28-EP

TPA3140D2PWPR from Texas Instruments, in a HTSSOP-28-EP. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 SD input Shutdown logic input for the audio amplifier: LOW puts the outputs in Hi-Z and HIGH enables them, with TTL logic levels referenced to AVCC.
2 FAULT output Open-drain output that flags short-circuit or DC-detect faults and is compliant to AVCC; tying it to SD gives auto-recovery, otherwise both fault types require cycling PVCC to reset.
3 LINP input Positive audio input for the left channel, biased at 3 V; connect to GND for PBTL mode.
4 LINN input Negative audio input for the left channel, biased at 3 V; connect to GND for PBTL mode.
5 LIMRATE input Sets the decay speed of the clip-free power limiter through a resistor divider from GVDD to GND; connect directly to GND to disconnect the limiter.
6 GAIN input Four-state amplifier gain select, set by a resistor divider from GVDD to GND to define the closed-loop gain.
7 SSCTRL input Spread-spectrum control set by a resistor divider from GVDD to GND to select the mode; connect to GND to disable spread spectrum.
8 LIMTHRES input Sets the voltage limit level for the AGL and power limiter through a resistor divider from GVDD to GND; connect directly to GVDD to disconnect the limiter.
9 GVDD power_out High-side FET gate-drive supply with a nominal output of 7 V, also used as the supply for the LIMTHRES limit function; add a 1-µF capacitor to ground at this pin.
10 GND power_in Analog signal ground.
11 RINN input Negative audio input for the right channel, biased at 3 V.
12 RINP input Positive audio input for the right channel, biased at 3 V.
13 1SPW input Modulation scheme select: LOW selects BD mode and HIGH selects 1SPW mode.
14 AVCC power_in Analog supply for the device.
15 PVCC power_in Power supply for the right-channel H-bridge, connected internally to the left-channel supply inputs.
16 PVCC power_in Power supply for the right-channel H-bridge, connected internally to the left-channel supply inputs.
17 BSPR bidirectional Bootstrap I/O for the right channel positive high-side FET.
18 OUTPR output Class-D H-bridge positive output for the right channel.
19 GND power_in Power ground for the H-bridges.
20 OUTNR output Class-D H-bridge negative output for the right channel.
21 BSNR bidirectional Bootstrap I/O for the right channel negative high-side FET.
22 BSNL bidirectional Bootstrap I/O for the left channel negative high-side FET.
23 OUTNL output Class-D H-bridge negative output for the left channel.
24 GND power_in Power ground for the H-bridges.
25 OUTPL output Class-D H-bridge positive output for the left channel.
26 BSPL bidirectional Bootstrap I/O for the left channel positive high-side FET.
27 PVCC power_in Power supply for the left-channel H-bridge, connected internally to the right-channel supply inputs.
28 PVCC power_in Power supply for the left-channel H-bridge, connected internally to the right-channel supply inputs.
29 Thermal Pad passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package HTSSOP-28-EP
Category Amplifiers/Comparators
Pins 29

CAD (KiCad official)

  • Symbol: TPA3140D2PWPR
  • Footprint: Package_SO:TSSOP-28-1EP_4.4x9.7mm_P0.65mm_EP2.85x6.7mm
  • 3D model: HTSSOP-28-EP (KiCad packages3D, STEP)
  • 3D model files: tpa3140d2pwpr-etched.step / tpa3140d2pwpr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tpa3140d2pwpr.step / tpa3140d2pwpr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (42 pp, sha256 b4f2dab28f53bd3b, retrieved 2026-10-08, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF