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SI-6635M

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Package:QFN36

SI-6635M is a 3-phase brushless motor driver IC with output current of 2A(DC)/4A(peak).
Supports sinusoidal current control (180℃), and includes a built-in digital PID controlller for motor speed control.
Conventionally, digital PID control required use of 1 chip microcomputer or FPGA, resulting in considerable time and resources spent for development. However, this product can digitally control the speed of rotation, by simply setting the parameters and rotation speed using the serial interface.
N channel power MOSFETs, predrivers, PWM current control, protection functions are incorporated in a single package. Supports motor power voltage up to 30V.

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Features

    ・Built-in 7 element N channel MOSFET
     (Built-in charge pump circuit)
    ・Hall element (Built-in amplifier), Hall input support
    ・Built-in sinusoidal current control (180℃)
    ・Built-in digital PID controller for controlling speed of motor rotation
    ・Built-in phase adjustment function
    ・2-Wire serial interface (compatible with I²C)
    ・Built-in Protection functions:
     Overvoltage protection
     Undervoltage protection
     Overcurrent protection (supports supply fault, ground fault, load short-circuit )
     Thermal protection
     Motor lock detection
     Through current prevention function
    ・Alarm output function at time of error
     (I²C Read Back distinguishes 8 types of abnormal operation)
    ・FG output
    ・Print coil FG / encoder input can be selected
    ・Single supply operation (internal regulator for internal logic circuits)

Application

    Printers, industrial equipment

Specifications

Type
Maximum Supply Voltage 38 V
Output Current 4.0 A
On-Resistance 0.2Ω
Output Method 180°
Input Method
OVP YES
OCP YES
UVLO YES
TSD YES
STP (Simultaneous ON Protection Feature) YES
Lock Detection YES
Package Weight (Typ.) g

Block Diagram

Block Diagram

Pin Configuration Definitions

Pin Configuration Definitions

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