TB9120AFTAG Overview
Bi-CMOS Integrated Circuit Silicon Monolithic TB9120AFTAG Bipolar stepping motor driver with a clock input interface TB9120AFTAG 1 Overview TB9120AFTAG 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 consumer and industrial applications. 2 Applications Small stepping motors for consumer...
TB9120AFTAG Key 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.)
- Input power supply voltage(VBAT): 40V(max)
- Maximum output driving current: Overcurrent detection value, 2.0A(typ.)
- Internal voltage 5V(VccOUT)
- Anomaly detection functions: Over temperature detection, overcurrent detection, load open
- DIAG output: Over temperature detection, overcurrent detection and load open detection