# DRV8662RGPT

**Texas Instruments** · Brushless DC (BLDC) Motor Driver · QFN-20-EP(4x4)

DRV8662RGPT from Texas Instruments, in a QFN-20-EP(4x4). 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 | VPUMP | power_out | Internal charge pump output voltage; requires 0.1µF X5R or X7R capacitor to ground for stability |
| 2 | VDD | power_in | Power supply input; operating range 3.3V to 5.5V |
| 3 | FB | input | Boost feedback input; programs VBST from 15V to 105V via external resistor divider |
| 4 | GND | power_in | Ground return path |
| 5 | GND | power_in | Ground return path |
| 6 | GND | power_in | Ground return path |
| 7 | SW | power_out | Boost converter switch node; connects to 3.3µH to 22µH external inductor for boost energy transfer |
| 8 | SW | power_out | Boost converter switch node; connects to 3.3µH to 22µH external inductor for boost energy transfer |
| 9 | NC | unconnected | No connect pin; leave floating |
| 10 | VBST | power_out | Boost converter output voltage; programmable range 15V to 105V maximum |
| 11 | VBST | power_out | Boost converter output voltage; programmable range 15V to 105V maximum |
| 12 | PVDD | power_in | Amplifier supply voltage from boost converter; operates 15V to 105V |
| 13 | OUT+ | output | Non-inverting differential output for piezo actuator; maximum 200VPP with 100nF load at 300Hz |
| 14 | OUT- | output | Inverting differential output for piezo actuator; maximum 200VPP with 100nF load at 300Hz |
| 15 | REXT | input | Current limit resistor to ground; range 6kΩ to 35kΩ programs boost peak current limit |
| 16 | IN- | input | Inverting analog input; 1.8V peak input for gain-matched output operation; if unused connect to GND through capacitor |
| 17 | IN+ | input | Non-inverting analog input; 1.8V peak input for gain-matched output operation; if unused connect to GND through capacitor |
| 18 | GAIN0 | input | Gain programming LSB; combined with GAIN1 sets amplifier gain to 28.8dB, 34.8dB, 38.4dB, or 40.7dB |
| 19 | GAIN1 | input | Gain programming MSB; combined with GAIN0 sets amplifier gain to 28.8dB, 34.8dB, 38.4dB, or 40.7dB |
| 20 | EN | input | Chip enable input; logic high enables boost and amplifier with 1.5ms typical startup time |
| 21 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | QFN-20-EP(4x4) |
| Category | Motor Driver ICs |
| Pins | 21 |

## CAD (KiCad official)

- Symbol: `DRV8662RGPT`
- Footprint: `Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm`
- 3D model: QFN-20-EP(4x4) (KiCad packages3D, STEP)
- 3D model files: `drv8662rgpt-etched.step` / `drv8662rgpt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `drv8662rgpt.step` / `drv8662rgpt.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/drv8662) (27 pp, sha256 `1e64314789101684`, retrieved 2026-09-24, 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 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-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](docs/drv8662rgpt-datasheet.pdf)