# TC78H653FTG

**TOSHIBA** · Motor Driver ICs · VQFN-16-EP(3x3)

TC78H653FTG from TOSHIBA, in a VQFN-16-EP(3x3). 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 | IN4/PHA_B | input | Control input for H-bridge B (IN4 in IN mode, PHA_B in PHASE mode), per the Input/Output Functions tables. |
| 2 | IN3/ENB_B | input | Control input for H-bridge B (IN3 in IN mode, ENB_B in PHASE mode), per the Input/Output Functions tables. |
| 3 | NC | unconnected | No connection; the datasheet says to leave this terminal open. |
| 4 | IN1/ENB_A | input | Control input for H-bridge A (IN1 in IN mode, ENB_A in PHASE mode), per the Input/Output Functions tables. |
| 5 | IN2/PHA_A | input | Control input for H-bridge A (IN2 in IN mode, PHA_A in PHASE mode), per the Input/Output Functions tables. |
| 6 | STBY | input | Control input that selects standby (outputs off when low) or operation, per the Input/Output Functions tables. |
| 7 | NC | unconnected | No connection; the datasheet says to leave this terminal open. |
| 8 | GND | power_in | Ground pin. |
| 9 | OUT2 | output | Motor coil connection pin (H-bridge A output 2; paralleled with OUT1 as OUT+ in Large mode). |
| 10 | OUT1 | output | Motor coil connection pin (H-bridge A output 1; paralleled with OUT2 as OUT+ in Large mode). |
| 11 | OUT3 | output | Motor coil connection pin (H-bridge B output 3; paralleled with OUT4 as OUT- in Large mode). |
| 12 | OUT4 | output | Motor coil connection pin (H-bridge B output 4; paralleled with OUT3 as OUT- in Large mode). |
| 13 | GND | power_in | Ground pin. |
| 14 | VM | power_in | Motor power supply pin with an operating range of 1.8 V to 7.5 V (absolute maximum 8.0 V). |
| 15 | LARGE | input | Control input selecting Large mode (high, OUT1/OUT2 and OUT3/OUT4 paralleled for one motor) or Small mode (low). |
| 16 | MODE | input | Control input selecting IN input mode (low) or PHASE input mode (high). |
| 17 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TOSHIBA |
| Package | VQFN-16-EP(3x3) |
| Category | Power Management ICs |
| Pins | 17 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Power supply voltage | VM |  |  | 8 | V | Ta = 25°C | 6 |
| Input voltage | VIN | -0.3 |  | 6 | V | Ta = 25°C | 6 |
| Output current (DC) Large mode | IOUT |  |  | 4 | A | In Large mode | 6 |
| Output current (DC) Small mode | IOUT |  |  | 2 | A | In Small mode | 6 |
| Output current peak Large mode | IOUT |  |  | 5 | A | In Large mode, Peak at 10 ms | 6 |
| Output current peak Small mode | IOUT |  |  | 2.5 | A | In Small mode, Peak at 10 ms | 6 |
| Body diode forward current Small mode | If |  |  | 2 | A | In Small mode | 6 |
| Body diode forward current Large mode | If |  |  | 4 | A | In Large mode | 6 |
| Power dissipation | PD |  |  | 1.79 | W | JEDEC 4 layers board, derate 14.3mW/°C above 25°C | 6 |
| Operating temperature range | Topr | -40 |  | 105 | °C |  | 6 |
| Storage temperature | Tstg | -55 |  | 150 | °C |  | 6 |
| Power supply voltage | VM | 1.8 | 3 | 7.5 | V | Ta = -40 to 105°C | 6 |
| Output current Large mode | IOUT |  |  | 4 | A | In Large mode, VM = 5.0 V | 6 |
| Output current Small mode | IOUT |  |  | 2 | A | In Small mode, VM = 5.0 V | 6 |
| PWM frequency | fPWM |  |  | 500 | kHz | Duty = 50% | 6 |
| Consumption current | ICC (W) |  | 0.6 | 1 | mA | Forward / Reverse mode, VM = 3.0 V, Output open | 7 |
| Standby consumption current | ICC (STB) |  | 0 | 0.22 | μA | Standby mode, VM = 3.0 V | 7 |
| Input high voltage | VIH1 | 1.5 |  | 5.5 | V | VM = 1.8 V | 7 |
| Input high voltage | VIH2 | 1.7 |  | 5.5 | V | VM = 3.0 V | 7 |
| Input high voltage | VIH3 | 2 |  | 5.5 | V | VM = 5.0 V | 7 |
| Input low voltage | VIL | -0.3 |  | 0.5 | V |  | 7 |
| Input high current | IIH | 10 | 16 | 22 | μA | VIN=3.0 V | 7 |
| Input low current | IIL |  |  | 1 | μA |  | 7 |
| ON-resistance (sum of upper and lower) Small mode | RON(D-S) |  | 0.22 | 0.35 | Ω | IOUT = 1.0 A, VM = 5.0 V, In Small mode | 7 |
| ON-resistance (sum of upper and lower) Large mode | RON(D-S) |  | 0.11 | 0.175 | Ω | IOUT = 1.0 A, VM = 5.0 V, In Large mode | 7 |
| Output leakage current high side | IOH |  |  | 0.5 | μA | VM = 3.0 V | 7 |
| Output leakage current low side | IOL |  |  | 0.5 | μA |  | 7 |
| Output DMOS body diode forward voltage | Vf |  | 0.7 | 1 | V | If = 0.4 A, VM = 5.0 V | 7 |
| Propagation delay low to high | tpLH |  | 90 |  | ns | VM = 3.0 V, Ta = 25°C | 5 |
| Propagation delay high to low | tpHL |  | 90 |  | ns | VM = 3.0 V, Ta = 25°C | 5 |
| Output rise time | tr |  | 20 |  | ns | VM = 3.0 V, Ta = 25°C | 5 |
| Output fall time | tf |  | 10 |  | ns | VM = 3.0 V, Ta = 25°C | 5 |

## CAD (KiCad official)

- Symbol: `TC78H653FTG`
- Footprint: `Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm`
- 3D model: VQFN-16-EP(3x3) (KiCad packages3D, STEP)
- 3D model files: `tc78h653ftg-etched.step` / `tc78h653ftg-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tc78h653ftg.step` / `tc78h653ftg.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TOSHIBA datasheet](docs/tc78h653ftg-datasheet.pdf) (14 pp, sha256 `41aa767b8704f09c`, retrieved 2026-10-27, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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](docs/tc78h653ftg-datasheet.pdf)