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Part Number Package & Pins Phase General Usage VCC Work Voltage (V)-min VCC Work Voltage (V)-max RPM Output Fan Speed Control VREG (V) PWM/VSP Shutdown (ms) Speed Curve Setting Open or Close Loop Soft Start Gauss Hys (mv) Current Limit OCP Lock ON/OFF LA PWM Soft Switch Roff
APX9283 TQFN3x3-16
1 OA 4 18 FG
5 60 Resistor Open External +-10 Resistor Yes External Yes Yes Yes
Single-Phase Full-Wave Motor Pre-Driver for Fan Motor

  • Single Phase Fan Pre-driver
  • Built-in Soft Start Function
  • Selectable PWM or DC control
  • Minimum and Shutdown Duty Setting
  • Adjustable Off Side Angle Function
  • Adjustable Leading Angle Function
  • Built-in Current Limit Circuit
  • Built-in Over Current Protection
  • Power Saving Function (Standby Mode)
  • Built-in Lock Protection and Auto Restart Function
  • FG (Rotation Speed) or RD (Rotation Detection) Output
  • Built-in Thermal Protection Circuit
  • Lead Free and Green Device Available (RoHS Compliant)

General Description
The APX9283 is a single-phase full-wave motor pre-driver for DC fan motors. It’s suitable for variable speed curve applications, and then it is suitable for cooler DC fan that needs silent drivers. In normal operation, the supply current is less than 7mA. The APX9283 is available in TSSOP-16 and TQFN3x3-16 packages.
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