1ch Boost up type White LED Driver for large LCD - BD9489F

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). Therefore it is available for the fail-safe design over a wide range output voltage.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
número de peça
Estado de Condição
Quantidade Unidade
Quantidade mínima Package
tipo de embalagem
BD9489F-GE2 Active SOP16 2500 2500 Taping sim
Topology Boost
Number of Outputs 1
Vin(Min.)[V] 9.0
Vin(Max.)[V] 35.0
Frequency(Max.)[MHz] 0.8
LED Configuration 1
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
    • 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 OCP protection)
    • Over-voltage protection (OVP) for the output voltage Vout
    • 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 stage
Dados técnicos
Application Note

Thermal Resistance