Loads when you scroll to it. Unloads after 5 minutes in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

PCB Footprint

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Loads when you scroll to it. Unloads after 5 minutes in the background.
Download PDF
Contents

README

markdown

TC78H660FTG

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

TC78H660FTG 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 IN1A / Phase A input A channel IN1 input in IN mode (MODE=Low) or A channel Phase input in Phase mode (MODE=High); logic high 1.5 V to 5.5 V, low 0 to 0.7 V.
2 AGND power_in Ground pin.
3 VM power_in Motor power supply input pin, operating range 2.5 V to 16.0 V.
4 PGND_A power_in A channel power ground pin.
5 OUT_A+ output A channel motor output (+) pin, rated up to 2.0 A.
6 OUT_A- output A channel motor output (-) pin, rated up to 2.0 A.
7 OUT_B- output B channel motor output (-) pin, rated up to 2.0 A.
8 OUT_B+ output B channel motor output (+) pin, rated up to 2.0 A.
9 PGND_B power_in B channel power ground pin.
10 VREF power_in Current threshold reference pin, 0 to 1.8 V, with peak output current Iout(max) = 1.1 × Vref.
11 OSCM passive Internal oscillator frequency setting pin; an external resistor ROSC sets the chopping frequency (47 kΩ gives about 79 kHz).
12 STBY input Standby pin; Low selects standby mode and High selects normal mode.
13 MODE / ERR bidirectional Control mode select input (Low = IN mode, High = Phase mode) and error flag output that goes Low on TSD/ISD; needs a pull-up to High for Phase mode or error output, and the output voltage is rated up to 5.5 V.
14 IN2A / Phase B input A channel IN2 input in IN mode (MODE=Low) or B channel Phase input in Phase mode (MODE=High).
15 IN1B / Enable A input B channel IN1 input in IN mode (MODE=Low) or A channel Enable input in Phase mode (MODE=High).
16 IN2B / Enable B input B channel IN2 input in IN mode (MODE=Low) or B channel Enable input in Phase mode (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
Motor output voltage (outputs OFF) Vout 20 V Outputs are OFF 15
Motor output voltage (outputs ON) Vout 18 V Outputs are ON 15
Motor power supply (non-active) VM 20 V STBY pin = L 15
Motor power supply (active) VM -0.4 18 V STBY pin = H 15
Motor output current Iout 2 A (Note 1) 15
Logic input voltage high VIN(H) 6 V 15
Logic input voltage low VIN(L) -0.4 V 15
ERR output pin voltage VLO 6 V 15
ERR output pin inflow current ILO 6 mA 15
Power dissipation PD 1.79 W JEDEC 4 layers board, Ta=25°C (Note 2) 15
Operating temperature Topr -40 85 °C 15
Storage temperature Tstg -55 150 °C 15
Junction temperature Tj(max) 150 °C 15
Motor power supply VM 2.5 16 V Ta = -40 to 85°C 16
Motor output current Iout 1.1 2 A (Note1) 16
ERR pin output voltage VLO 5.5 V 16
Vref reference voltage Vref 0 1.8 V 16
PWM frequency fPWM 400 kHz Duty=50% 16
Logic input voltage HIGH VIN(H) 1.5 5.5 V Logic input (Note1) 16
Logic input voltage LOW VIN(L) 0 0.7 V Logic input (Note1) 16
Logic input hysteresis voltage VIN(HYS) 60 mV Logic input (Note1) 16
Logic input current HIGH IIN(H) 33 45 μA VIN(H) = 3.3 V 16
Logic input current LOW IIN(L) 1 μA VIN(L) = 0 V 16
ERR pin output voltage LOW VOL(LO) 0.5 V IOL = 5 mA, output = L 16
Current consumption standby IM1 0.1 μA Output pins = open, Standby mode 16
Current consumption stop IM2 2.8 3.5 mA Output pins = open, Stop mode in releasing Standby mode 16
Current consumption active IM3 3.3 4.3 mA Output pins = open, fPWM =18.75 kHz 16
Output leakage current High-side IOH 1 μA VM = 18 V, Vout = 0 V 16
Output leakage current Low-side IOL -1 μA VM = Vout = 18 V 16
Motor current channel differential ΔIout1 -5 0 5 % Current differential between Ch 16
Motor current setting accuracy ΔIout2 -5 0 5 % Iout = 1.1 A 16
Motor output ON resistance (High side + Low side) Ron(H+L) 0.48 0.6 Ω Tj = 25°C, VM = 12 V, Iout = 1 A 16
Vref input current Iref 0 1 μA Vref = 1.8 V 17
Thermal shutdown threshold TjTSD 145 165 175 °C (Note 1) 17
UVLO release voltage VUVLO 2.1 2.3 V At rising VM 17
UVLO hysteresis voltage Vhys_uvlo 200 mV 17
Over current detection threshold ISD 2.5 3.2 4.2 A VM = 12 V 17
Mode select setup time tmodesu 1 μs To STBY edge 6
Mode select data hold time tmodeho 100 μs From STBY edge 6
Logic input pulse width high tw(H) 500 ns 19
Logic input pulse width low tw(L) 500 ns 19
Output rise time tr 10 20 30 ns 19
Output fall time tf 10 20 30 ns 19
Propagation delay low to high tpLH 840 ns 19
Propagation delay high to low tpHL 900 ns 19
Analog noise blanking time AtBLK 340 540 740 ns VM = 12 V 19
Oscillator frequency accuracy ∆fOSCM -15 15 % ROSC = 47 kΩ, VM = 2.5 V to 16 V 19
Oscillator reference frequency fOSCM 1076 1266 1456 kHz ROSC = 47 kΩ 19
Chopping frequency fchop 79 kHz Output: Active, fOSCM = 1266 kHz 19

CAD (KiCad official)

  • Symbol: TC78H660FTG
  • 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: tc78h660ftg-etched.step / tc78h660ftg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tc78h660ftg.step / tc78h660ftg.glb are the bare package body.

Provenance

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

  • Datasheet: TOSHIBA datasheet (26 pp, sha256 cd7db6c756741bb7, retrieved 2026-10-30, 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