General Description
BD63888AEKV is a bipolar low-consumption driver that driven by PWM constant current. Rated power supply voltage of the device is 36 V, and rated output current is 1.5 A. CLK-IN drive mode is adopted for input interface, and excitation mode is corresponding to FULL STEP mode, HALF STEP mode (2 types) and QUARTER STEP mode via a built-in DAC. The power supply can be driven by one single system, which simplifies the design.

FEATUREs
■ Two bipolar stepping motors can be driven
■ Rated Output Current 1.5 A
■ Low ON Resistance DMOS Output
■ CLK-IN Drive Mode correspondence
■ PWM Constant Current control (the other excitation
   method)
■ Built-in Spike Noise Blanking Function (external
   noise filter is unnecessary)
■ Full-, Half (two kinds)-, Quarter-step Functionality
■ Free Timing Excitation Mode Switch
■ Decay Mode Switch Function
■ Normal Rotation and Reverse Rotation Switching
   Function
■ Power Save Function
■ Built-in Logic Input Pull-down Resistor
■ Power-on Reset Function
■ Thermal Shutdown Circuit (TSD)
■ Over-current Protection Circuit(OCP)
■ Under Voltage Lockout Circuit (UVLO)
■ Over Voltage Lockout Circuit (OVLO)
■ Ghost Supply Prevention (protects against
   malfunction when power supply is disconnected)

APPLICATION
■ Monitoring Camera, WEB Camera, PPC,
   Multi-function Printer, Laser Beam Printer, Ink-jet
   Printer, Sewing Machine, Photo Printer, FAX,
   Scanner, Mini Printer, Toy and Robot