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BD9489F Key Features

  • DCDC converter with current mode
  • As PWM=L, the retaining function of Vout, FB voltage
  • VOUT discharge function at shutdown
  • LED protection circuit (Over boost protection, LED
  • Over-voltage protection (OVP) for the output voltage
  • Adjustable soft start
  • Adjustable oscillation frequency of DCDC
  • Wide range of analog dimming 0.2V to 3.0V
  • UVLO detection for the input voltage of the power

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BD9489F Description

BD9489F is a high efficiency driver for white LEDs and is designed for large LCDs. BD9489F has a boost DCDC converter that employs an array of LEDs as the light source. BD9489F has some protect functions against fault conditions, such as over-voltage protection (OVP), over current limit protection of DCDC (OCP), LED OCP protection, and Over boost protection (FBMAX).