motor-drivers

TB67S109AFNG

Key datasheet specifications and the closest alternatives, ranked by parametric similarity and grounded in the manufacturer datasheet.

01 — Overview

This Toshiba datasheet covers the TB67S109AFTG and TB67S109AFNG, a two-phase bipolar stepping motor driver using PWM chopping. Designed for controlling one motor, it supports full to 1/32 step operations with built-in error detection like thermal shutdown. Key specs include a BiCD process rating of 50V/4.0A, low on-resistance of 0.49Ω, and an Advanced Dynamic Mixed Decay current control mechanism for high efficiency.

02 — Key specifications

Datasheet parameters

Parameter	Min	Typ	Max	Conditions
quiescent current	—	2.5 mA	5 mA	VCC = 5.0V
output current	—	1.5 A	—
supply voltage range	10 V	—	47 V
rds on	—	490 mOhm	600 mOhm	Tj = 25°C, Forward direction(High-side+Low-side)
propagation delay	—	1 µs	—	CLK-Output
rise time	30 ns	80 ns	130 ns
fall time	40 ns	90 ns	140 ns
driver count	—	2	—

03 — Alternatives

Closest matches to TB67S109AFNG

DRV8803DW 2.2× higher rise time, 1.9× higher fall time, 1.9× lower output current

TB67H450FNG 2.3× higher output current, 2.0× lower propagation delay, 1.3× lower rise time

TB67H451AFNG 2.3× higher output current, 2.0× lower propagation delay, 1.3× lower rise time

DRV8803PWPR 2.2× higher rise time, 1.9× higher fall time, 1.6× lower quiescent current

A4988 1.6× higher quiescent current, 1.5× lower rds on, 1.3× lower supply voltage range

DRV8833 4.2× lower supply voltage range, 2.4× lower rds on, 2.3× higher rise time

DRV8837 5.2× lower supply voltage range, 1.7× lower rds on, 1.7× lower output current

DRV8844 2.5× lower quiescent current, 1.7× lower rds on, 1.2× higher supply voltage range

04 — FAQ

Frequently asked questions

What is the driver count for the TB67S109AFNG?

The driver count is 2.

What is the fall time?

The fall time is 90 ns.

What is the output current?

The output current is 1.5 A.

What is the propagation delay from CLK to Output?

The propagation delay from CLK to Output is 1 µs.

What is the quiescent current when VCC = 5.0V?

The quiescent current is 2.5 mA at VCC = 5.0V.

What is the rds on value for the TB67S109AFNG at Tj = 25°C in the Forward direction (High-side+Low-side)?

The rds on value is 490 mOhm.

What is the rise time?

The rise time is 80 ns.

What is the maximum supply voltage for the TB67S109AFNG?

The supply voltage range is 47 V.

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