TB9120AFTG Datasheet (Toshiba) - Bipolar stepping motor driver

TB9120AFTG, Bipolar stepping motor driver

TB9120AFTG 6.1 Pin Arrangement and Function Description Pin No.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 - Pin name VccOUT VDD OSCM VREF GND TEST2 SDT RSA OUTAOUTA+ VBAT OUTBOUTB+ RSB CLK TORQUE0 TORQUE1 DMODE0 DMODE1 DMODE2 START BSTBY CW/CCW ENABLE TEST1 MO DI

Bi-CMOS Integrated Circuit Silicon Monolithic TB9120AFTG TB9120AFTG Bipolar stepping motor driver with a clock input interface for automotive applications 1 Overview TB9120AFTG is a two-phase bipolar stepping motor driver with a clock input interface and a PWM constant-current control system.

It can be used for a small stepping motor in a wide range of automotive applications.

2 Applications Small stepping motors for automotive applications such as an adjustment to an angle of a concave mirro

TB9120AFTG Features

* A two-phase bipolar stepping motor can be driven with a single chip.

* Adoption of PWM constant-current control

* Built-in a mixed decay mode

* Excitation mode selectable: full, half, quarter, 1/8, 1/16, and 1/32 step

* On-resistance of power MOSFETs: Ron(H+L)=0.8Ω(typ.)