General Description

BD65520MUV is a 36 V power supply rated, 2.0 A output

current rated, low-consumption bipolar PWM constant

current driven High-efficiency Driver. The input interface

adopts the CLK-IN drive system, and the excitation mode

supports FULL STEP to 1/32 STEP mode via a built-in

DAC. FAST / SLOW DECAY of current decay mode ratio

linear variable freely. Pin settings and detailed settings

by SPI are set to make an optimum current control

possible according to the load of every motor for a

High-efficiency Drive. In addition, the power supply may

also be driven by a single system, contributing to a

simple set design.

Features

◼ Built-in High-efficiency Drive Mode

(Drive Current Value Output Function, High-efficiency

Drive Setting Function)

◼ Motor Load Status Output Function

◼ Pin Setting Mode / SPI Setting Mode

◼ Detailed Setting Function by SPI Input

◼ Output Current Rating (DC) 2.0 A

◼ Low ON Resistance DMOS Output

◼ CLK-IN Drive System

◼ PWM Constant Current Control (Other Oscillation)

◼ Built-in Spike Noise Blanking Function

(No external Noise Filter required)

◼ FULL STEP to 1/32 STEP Compatible

◼ Excitation Mode Switching Free Timing

◼ Current Decay Mode Switching Function

(FAST DECAY / SLOW DECAY Ratio Linear Variable

(MIX DECAY))

◼ Current Decay Mode Optimization Function (AUTO

DECAY)

◼ Forward / Reverse Switching Function

◼ Power Save Function

◼ Built-in Logic Input Pull-down Resistor

◼ Power ON Reset Function

◼ Temperature Protection Circuit (TSD)

◼ Overcurrent Protection Circuit (OCP)

◼ Low Voltage Malfunction Prevention Function (UVLO)

◼ Overvoltage Output OFF Function (OVLO)

◼ Malfunction Prevention Function if no power applied

(“Ghost Supply Prevention” function)

◼ Protection Status Output Function

◼ Adjacent Pin Short Protection

◼ Ultra-compact, Ultra-thin, High Heat Dissipation

(Backside Heat Dissipation) Package

Application

◼ PPC, Multifunction Printer, Laser Beam Printer, Inkjet

Printer, Surveillance Camera, WEB Camera, Sewing

Machine, Photo Printer, Fax, Scanner, Mini Printer, Toy,

Robot