BD63740FM Datasheet | ROHM

Description BD63740FM is a bipolar low-consumption driver that is driven by PWM current. Rated power supply voltage of the device is 36 V, and rated output current is 4.0 A. CLK-IN driving mode is adopted for input interface, and excitation mode is corresponding to FULL STEP mode (2 types), HALF STEP mode (2 types), QUARTER STEP mode (2 types), 1/8 STEP mode and 1/16 STEP mode via a built-in DAC. In terms of current decay, the SLOW DECAY/FAST DECAY ratio may be set without any limitation, and all available modes may be controlled in the most appropriate way. In addition, the power supply may be driven by one single system, which simplifies the design. Key Specifications - Range of Power Supply Voltage 8 V to 28 V - Rated Output Current (continuous) 4.0 A - Rated Output Current (peak value) 4.5 A - Range of Operating Temperature -25 °C to +85 °C - Output ON Resistance 0.28 Ω (Typ) (total of upper and lower resistors) Package HSOP-M36 W (Typ) x D (Typ) x H (Max) 18.5 mm x 9.9 mm x 2.4 mm Features - Rated Output Current 4.0 A - Low ON Resistance DMOS Output - CLK-IN Drive Mode - PWM Constant Current (other oscillation) - Built-in Spike Noise Cancel Function (external noise filter is unnecessary) - FULL STEP (2 types), HALF STEP (2 types), QUARTER STEP (2 types), 1/8 STEP, 1/16 STEP Functionality - Freely Timing Excitation Mode Switch - Current Decay Mode Switch (linearly variable SLOW/FAST DECAY ratio) - Normal Rotation & 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 Lock Out Circuit (UVLO) - Over Voltage Lock Out Circuit (OVLO) - Protects Against Malfunction when Power Supply is Disconnected (Ghost Supply Prevention Function) - Adjacent Pins Short Protection Application - Sewing Machine, PPC, Multi-function Printer, Laser Beam Printer, Ink-jet Printer, Monitoring Camera, WEB Camera,...