PRODUCT_DETAIL_3Ph_LVBLDCMotor |Sanken Electric

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SI-6635M

Data sheetdownload (PDF:1074.48KB)
Application Note

Description

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.

Application

Printers, industrial equipment

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)

Remarks

Package

Package Name:QFN36

Package Diagram

Specifications

Supply Voltage (Min.)10V
Supply Voltage (Max.)38.0V
Output Current4.0A
On-Resistance0.2Ω
Output Method180°
Input MethodHall Input
OVPYES
OCPYES
UVLOYES
TSDYES
Simultaneous ON-state PreventionYES
Lock DetectionYES

Representative Circuit

Internal Block Diagram

Pin-out Diagrams

Data sheetdownload (PDF:1074.48KB)
Application Note
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