LB1945H Datasheet (Sanyo) - PWM Current Control Type Stepping Motor Driver

LB1945H, PWM Current Control Type Stepping Motor Driver

Pin name Pin number VBB1 7 VBB2 24 E1 5 E2 23 OUTA 2 OUTA * 1 OUTB 27 OUTB * 28 GND 14 S *GND 15 D *GND 6 22 CR 21 VREF1 VREF2 PHASE1 PHASE2 ENABLE1 ENABLE2 IA1, IA2 IB1, IB2 VCC 13 16 9 20 10 19 12, 11 17, 18 8 Function Output stage power supply voltage pin.

Cathode pin

LB1945H Features

* PWM current control (external excitation)

* Load current digital selection (1

* 2, W1

* 2, and 2 phase excitation drives possible)

* Built-in upper/lower diode

* Simultaneous ON prevention function (feedthrough current prevention)

* Built-in ther