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SX68128MB

The SX68128MB is a high voltage 3-phase motor driver driven by a sinusoidal control, which can support Hall element and Hall IC inputs, thus offering high-efficient yet low-noise motor control. Supplied in a thin SOP36 package, where a controller, a gate driver, the output transistors of three phases, and bootstrap diodes are highly integrated, the SX68128MB requires only a few external components for building a motor driver. This also allows a motor driver to be highly reliable in performance and design-friendly with its compactness. The product can optimally control the inverter systems of low- to medium-capacity motors that require universal input standards.

Features

    • Low Noise, High Efficiency (Sinusoidal Current Waveform)
    • Reduced Number of Parts Achieved by Built-in Bootstrap Diodes with Current-limiting Resistors
    • Pb-free (RoHS Compliant)
    • Rotation Pulse Signal FG Output (2.4 ppr)
    • Application-specific Optimal Settings with External Signals:
      – Motor Speed
      – Phase Adavance Angle
      – Motor Direction
      – User-settable Motor Lock Detection (Enabled or Disabled)
    • 5 V Reference Voltage Output
      (Used for Driving Hall Elements etc.)
    • Fault Signal Output at Protection Activation (FO Pin)
    • Protections Include:
      – VREG Pin Undervoltage Lockout (UVLO_VREG)
      – Undervoltage Lockout for Power Supplies
      VBx Pin (UVLO_VB)
      VCC1 Pin (UVLO_VCC)
      – Overcurrent Limit (OCL)
      – Overcurrent Protection (OCP)
      – Thermal Shutdown (TSD)
      – Motor Lock Protection (MLP)
      – Reverse Rotation Detection
      – Hall Signal Abnormality Detection

Application

    For motor drives such as:
    • Fan Motor for Air Conditioner
    • Fan Motor for Air Purifier and Electric Fan

Specifications

Type Power IC
Breakdown Voltage 600 V
Output Current 1.5 A
RDS(ON) max./
VCE(SAT) typ.
3.6Ω
Output Element MOSFET
Input Threshold ― V
UVLO YES
Overcurrent (OCP or OCL) OCP/OCL
Temperature Detection Thermal Shutdown
Fault Signal Output YES
3 Shunt Support YES
Bootstrap Diode Built-in
Simultaneous On-state Protection NO
Reg Output YES
Package Weight (Typ.) 1.4 g

Typical Application

Typical Application

Block Diagram

Block Diagram

Pin Configuration Definitions

Pin Configuration Definitions

Physical Dimensions

Physical Dimensions

Questions or Comments?

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