# TC4420COA

**Microchip Tech** · Gate Drive ICs · SOIC-8

TC4420COA from Microchip Tech, in a SOIC-8. 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 | VDD | power_in | Supply input rated 4.5V to 18V with respect to the ground pins, to be bypassed with a local ceramic capacitor of at least 1.0 µF. |
| 2 | INPUT | input | TTL/CMOS compatible high-impedance control input that can be driven as high as VDD + 0.3V or as low as -5V without upset or damage. |
| 3 | NC | unconnected | No connection. |
| 4 | GND | power_in | Ground return path for the bias current and high peak discharge currents, to be tied to a ground plane or kept on very short traces. |
| 5 | GND | power_in | Ground return path for the bias current and high peak discharge currents, to be tied to a ground plane or kept on very short traces; duplicate ground pin that must be connected for proper operation. |
| 6 | OUTPUT | output | CMOS push-pull output capable of 6.0A peak source and sink current and withstanding 1.5A peak reverse current of either polarity; duplicate output pin that must be connected for proper operation. |
| 7 | OUTPUT | output | CMOS push-pull output capable of 6.0A peak source and sink current and withstanding 1.5A peak reverse current of either polarity; duplicate output pin that must be connected for proper operation. |
| 8 | VDD | power_in | Supply input rated 4.5V to 18V with respect to the ground pins, to be bypassed with a local ceramic capacitor of at least 1.0 µF. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOIC-8 |
| Category | Power Supply Chip |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `TC4420COA`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `tc4420coa-etched.step` / `tc4420coa-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tc4420coa.step` / `tc4420coa.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Microchip Tech datasheet](docs/tc4420coa-datasheet.pdf) (22 pp, sha256 `1513714315f0665c`, retrieved 2026-10-27, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `off` (skipped (clean text read)), 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](docs/tc4420coa-datasheet.pdf)