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TB67H400AFTG

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by Ray

TOSHIBA Motor Driver ICs, WQFN-48-EP(7x7). Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentpower supply chiptb67h400aftg
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Contents

README

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TB67H400AFTG

TOSHIBA · Motor Driver ICs · WQFN-48-EP(7x7)

TB67H400AFTG from TOSHIBA, in a WQFN-48-EP(7x7). 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 NC unconnected No connection. Leave unconnected - do not route any pattern to this pin.
2 INB1 input Motor B-channel IN1 signal input pin. CMOS-level digital input (VIH 2.0-5.5 V, VIL 0-0.8 V) with internal 100 kΩ pull-down; sets B-channel drive mode with INB2/PWMB.
3 INB2 input Motor B-channel IN2 signal input pin. CMOS-level digital input (VIH 2.0-5.5 V, VIL 0-0.8 V); works with INB1/PWMB to select CW/CCW/brake/stop for the B H-bridge.
4 TBLKAB input Digital tBLK (blanking time) selector for both A and B channels. L = fOSCM × 4 clocks, H = fOSCM × 6 clocks; sets noise-rejection window for current-sense comparator.
5 GND power_in Ground pin. Common return for the device; connect to the PCB ground plane along with all other GND pins and the exposed die pad.
6 NC unconnected No connection. Leave unconnected.
7 RSA passive Motor A-channel current-sense pin. Connect low side of A-channel H-bridge through a sense resistor RRS to GND; monitored against VREF/current-level for chopping. Pins 7 and 8 are the same net and must be tied together at the device.
8 RSA passive Motor A-channel current-sense pin (paralleled with pin 7). Tie to pin 7 at the nearest point and connect to the external sense resistor.
9 NC unconnected No connection. Leave unconnected.
10 OUTA+ output Motor A-channel positive H-bridge output. Rated 4.0 A (Small mode); output voltage range 10-47 V. Pins 10 and 11 are the same net - tie together at the device.
11 OUTA+ output Motor A-channel positive H-bridge output (paralleled with pin 10).
12 NC unconnected No connection. Leave unconnected.
13 NC unconnected No connection. Leave unconnected.
14 NC unconnected No connection. Leave unconnected.
15 GND power_in Ground pin.
16 OUTA- output Motor A-channel negative H-bridge output. Rated 4.0 A (Small mode); output voltage range 10-47 V. Pins 16 and 17 are the same net - tie together.
17 OUTA- output Motor A-channel negative H-bridge output (paralleled with pin 16).
18 GND power_in Ground pin.
19 GND power_in Ground pin.
20 OUTB- output Motor B-channel negative H-bridge output. Rated 4.0 A (Small mode); output voltage range 10-47 V. Pins 20 and 21 are the same net - tie together.
21 OUTB- output Motor B-channel negative H-bridge output (paralleled with pin 20).
22 GND power_in Ground pin.
23 NC unconnected No connection. Leave unconnected.
24 NC unconnected No connection. Leave unconnected.
25 NC unconnected No connection. Leave unconnected.
26 OUTB+ output Motor B-channel positive H-bridge output. Rated 4.0 A (Small mode); output voltage range 10-47 V. Pins 26 and 27 are the same net - tie together.
27 OUTB+ output Motor B-channel positive H-bridge output (paralleled with pin 26).
28 NC unconnected No connection. Leave unconnected.
29 RSB passive Motor B-channel current-sense pin. Connect low side of B-channel H-bridge through a sense resistor RRS to GND. Pins 29 and 30 are the same net - tie together at the device.
30 RSB passive Motor B-channel current-sense pin (paralleled with pin 29).
31 NC unconnected No connection. Leave unconnected.
32 VM power_in Motor voltage supply pin. Provides the H-bridge output rail; VM operating range 10-47 V (50 V abs max).
33 NC unconnected No connection. Leave unconnected.
34 VCC power_out Internal regulator voltage monitor pin. VCC is generated by the on-chip regulator (4.75 V min / 5.0 V typ / 5.25 V max); bypass to GND with a ceramic capacitor. Not a supply input.
35 NC unconnected No connection. Leave unconnected.
36 NC unconnected No connection. Leave unconnected.
37 NC unconnected No connection. Leave unconnected.
38 NC unconnected No connection. Leave unconnected.
39 NC unconnected No connection. Leave unconnected.
40 GND power_in Ground pin.
41 VREF input Motor output current setting pin. Analog reference input, 0-4.0 V range; sets the constant-current chopping threshold together with RRS (Iout ≈ VREF / RRS scaled by internal factor).
42 HBMODE input H-Bridge operation mode setting pin. L = Small mode (two independent H-bridges), H = Large mode (paralleled 8 A single-channel). Must be tied via PCB pattern and not toggled during operation.
43 OSCM passive Oscillator frequency setting pin. Sets internal chopping clock frequency, 0.64 MHz min / 1.12 MHz typ / 2.4 MHz max, using an external component (typ. capacitor to GND).
44 INA1 input Motor A-channel IN1 signal input pin. Digital input (VIH 2.0-5.5 V, VIL 0-0.8 V) with internal 100 kΩ pull-down; combined with INA2/PWMA selects CW/CCW/brake/stop for A-channel.
45 INA2 input Motor A-channel IN2 signal input pin. Digital input (VIH 2.0-5.5 V, VIL 0-0.8 V); works with INA1/PWMA to select A-channel drive mode.
46 PWMA input Motor A-channel short-brake / PWM signal input pin. Digital input (VIH 2.0-5.5 V, VIL 0-0.8 V); PWM-chops A-channel drive and enables short-brake per truth table.
47 PWMB input Motor B-channel short-brake / PWM signal input pin. Digital input (VIH 2.0-5.5 V, VIL 0-0.8 V); PWM-chops B-channel drive and enables short-brake per truth table.
48 NC unconnected No connection. Leave unconnected.

Key specifications

Parameter Value
Manufacturer TOSHIBA
Package WQFN-48-EP(7x7)
Category Power Supply Chip
Pins 48

Ordering variants

Same part, different packaging or reel option.

  • TB67H400AFTG

CAD (KiCad official)

  • Symbol: TB67H400AFTG
  • Footprint: Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.15x5.15mm
  • 3D model: WQFN-48-EP(7x7) (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: TOSHIBA datasheet (24 pp, sha256 3e1c7e7171961ebe, 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