TC8002D

@@ -0,0 +1,43 @@+# TC8002D++**Shenzhen Fuman** · Audio Power OpAmps · SOIC-8++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)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Shenzhen Fuman datasheet](docs/tc8002d-datasheet.pdf) (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](docs/tc8002d-datasheet.pdf)

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