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SI-6633C

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Package:QFN36

SI-6633C is a 3-phase brushless DC motor pre-driver.
This device can be used together with wide variety of Nchannel MOSFETS, supporting motor power voltages up to 30V.
Phase is switched by hall elements arranged at an interval of 120°.
Built-in functions include PWM current control for limiting inrush current, thermal shutdown, and synchronous rectification.
The synchronous rectification fnction rectifies by MOSFET of low temperature resistance in place of a body diode, thus reducing power loss at the time of regeneration.
This product offers enable, direction, brake inputs that can control electric current by internal PWM.
Also, rotation of the motor can be detected by logc output FG.

Design Support

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Features

    lDrives 6-element N-channel MOSFET
    lSupports Hall input
    ØOvervoltage protection
    ØLow voltage protection
    ØOvercurrent protection
    ØThermal protection
    ØMotor lock detection
    ØThrough current protection function
    lProvides alarm output pin for protection function operation
    lBuilt-in synchronous rectifier function to reduce power loss
    lPWM current limit
    lFG output
    lStandby mode

Application

    Printers, industrial equipment

Specifications

Type
Maximum Supply Voltage 38.00 V
Output Current A
On-Resistance Ω
Output Method 120°
Input Method
OVP YES
OCP YES
UVLO YES
TSD YES
STP (Simultaneous ON Protection Feature) YES
Lock Detection YES

Pin Configuration Definitions

Pin Configuration Definitions

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