1ch Boost up type White LED Driver for large LCD - BD9409F
BD9409F is a high efficiency driver for white LEDs and is designed for large LCDs. BD9409F has a boost DCDC converter that employs an array of LEDs as the light source. BD9409F 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.
Number of Outputs
PWM / Analog
Operating Temperature (Min.)[℃]
Operating Temperature (Max.)[℃]
- DCDC converter with current mode
- LED protection circuit
(Over boost protection(FB_H), LED OCP protection)
- Over-voltage protection (OVP) for the output voltage Vout
- Adjustable soft start
- Adjustable oscillation frequency of DCDC
- UVLO detection for the input voltage of the power stage
- PWM Dimming and MS Dimming.