LB1945D Datasheet (Sanyo Semicon Device)

LB1945D, Stepping Motor Driver

GND VCC IA2 IA1 NC No.7633-3/9 LB1945D Block Diagram ENABLE2 PHASE2 SUBGND VREF2 VCC IB1 IB2 www.DataSheet4U.com S-GND Control logic circuit Current selection circuit VBB2 Blanking time OUTB E2 OUTB D-GND VBB1 Thermal shutdown circuit OSC CR D-GND OUTA E1 OUTA Blanking time Control

LB1945D Features

* PWM current control (external clock)

* Digital load current selection function (supports 1-2, W1-2, and 2-phase excitation)

* Built-in high and low side diodes

* Simultaneous on state prevention function (through-current prevention)

* Built-in thermal shutdo