The BL0202C BL0202B BL0200C are 2ch output LED driver IC for LED backlight, and it can do dimming to 0.02% by external PWM signal.
This IC realizes a high efficiency by the boost convertor control that absorbs variability on VF.
The product easily achieves high cost-performance LED drive system with few external components and enhanced protection functions.
Features and Benefit
Boost Convertor
● Current-Mode type PWM Control
● PWM frequency is 100 kHz or 200 kHz
● Maximum On Duty is 90%
LED current control
● Individual PWM Dimming Control
● Analog Dimming
● High contrast ratio is 1 / 5000
● Accuracy of Reg output voltage is ± 1.5% or ± 2%
Protection functions
● Enable Function of IC (BL0202B, BL0202C)
● Error Signal Output (BL0200C)
● Overcurrent Protection for Boost Circuit (OCP)
- Pulse-by-pulse
● Overcurrent Protection for LED Output (LED_OCP)
- Pulse-by-pulse
● Overvoltage Protection (OVP) - Auto restart
● Output Open/Short Protection - Auto restart
● Thermal Shutdown (TSD) - Auto restart
Applications
● LED backlights
● LED lighting
This IC realizes a high efficiency by the boost convertor control that absorbs variability on VF.
The product easily achieves high cost-performance LED drive system with few external components and enhanced protection functions.
Features and Benefit
Boost Convertor
● Current-Mode type PWM Control
● PWM frequency is 100 kHz or 200 kHz
● Maximum On Duty is 90%
LED current control
● Individual PWM Dimming Control
● Analog Dimming
● High contrast ratio is 1 / 5000
● Accuracy of Reg output voltage is ± 1.5% or ± 2%
Protection functions
● Enable Function of IC (BL0202B, BL0202C)
● Error Signal Output (BL0200C)
● Overcurrent Protection for Boost Circuit (OCP)
- Pulse-by-pulse
● Overcurrent Protection for LED Output (LED_OCP)
- Pulse-by-pulse
● Overvoltage Protection (OVP) - Auto restart
● Output Open/Short Protection - Auto restart
● Thermal Shutdown (TSD) - Auto restart
Applications
● LED backlights
● LED lighting