TC8002D from Shenzhen Fuman, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	SHUTDOWN	input	Shutdown control input. When driven high (near VDD) the op-amps are disabled and supply current drops to ~0.6uA. Should be driven to a defined level (a pull-up is recommended when driven by a single-throw switch) to avoid indeterminate operation.
2	BYPASS	bidirectional	Internal bias voltage reference (VDD/2) node. Requires an external bypass capacitor to GND (typically 1μF) placed close to the IC to stabilize the internal bias and improve PSRR. Larger CB values further improve PSRR.
3	+IN	input	Non-inverting audio input of the first op-amp. Typically tied to the BYPASS reference via a resistor; the differential gain is set by AVD = 2×(Rf/Ri).
4	-IN	input	Inverting audio input of the first op-amp. The audio source is AC-coupled here through Ci (e.g. 0.39μF) and Ri, with feedback resistor Rf setting closed-loop gain AVD = 2×(Rf/Ri).
5	VO1	output	Bridge-tied-load audio output 1 (output of the first op-amp). Connects to one side of the loudspeaker (typical RL = 3Ω/4Ω/8Ω). No output coupling capacitor is required.
6	VDD	power_in	Positive supply voltage input. Operating range 2.0V to 5.5V (absolute maximum 6V). Bypass locally with a 1μF tantalum to GND for stable operation.
7	GND	power_in	Ground reference for the device. Common return for power and signal.
8	VO2	output	Bridge-tied-load audio output 2 (output of the second internal op-amp, fixed gain of -1 relative to VO1). Connects to the other side of the loudspeaker; delivers a signal equal in amplitude and opposite in phase to VO1 for BTL drive.

Key specifications

Parameter	Value
Manufacturer	Shenzhen Fuman
Package	SOIC-8
Category	Op-amp/Cmp
Pins	8

CAD (KiCad official)

Symbol: TC8002D
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`tc8002d.step`	122 KB	You want the bare part, or you mark your own boards.
`tc8002d-etched.step`	1.9 MB	You want the part with `TC8002D` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 445 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: Shenzhen Fuman datasheet (5 pp, sha256 864d16ed14fd0545, retrieved 2026-08-17, tier: lcsc)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF