Boost 1channel white LED driver For large LCDs - BD9285F

BD9285F is a high efficiency driver for white LEDs anddesigned for large LCDs. This IC is built-in a boostDCDC converters that employ an array of LEDs as thelight source. BD9285F has some protect function againstfault conditions, such as the over-voltage protection(OVP), the over current limit protection of DCDC (OCP),LED over current protection (LEDOCP), the opendetection of LED string. Therefore BD9285F is availablefor the fail-safe design over a wide range output voltage.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part number
Unit Quantity
Minimum Package Quantity
Packing Type
BD9285F-GE2 Active SOP18 2000 2000 Taping Yes
Topology Boost
Number of Outputs 1
Vin(Min.)[V] 9.0
Vin(Max.)[V] 18.0
Frequency(Max.)[MHz] 0.8
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
  • ・ Current mode DCDC converter
    ・ Vout discharge circuit as shutdown
    ・ LED protection circuit (OPEN protection, LED OCP protection)
    ・ LED protect detection as small PWM dimming signal
    ・ Over-voltage protection (OVP) and low-voltage protection (SCP: short circuit protection) for the output voltage Vout
    ・ Adjustable soft start time constant
    ・ The wide range of analog dimming 0.2V-3.5V
    ・ The built-in transformation circuit from pulse to DC
    ・ 2 PWM dimming signal
    ・ The UVLO detection for the input voltage of the power stage
    ・ FAIL logic output
Technical Data
Application Note

Thermal Resistance