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面向升压型单信道大屏幕的白色LED驱动器_BD9489F

BD9489F是白色LED用高效率驱动器,适用于大屏幕液晶驱动器。BD9489F内置了可向光源(LED串联连接的阵列)提供适当电压的DC/DC转换器。BD9489F中内置了应对异常状态的几种保护功能。过电压保护(OVP: over voltage protection), 过电流检测(OCP: over current limit protection of DCDC), LED 过电流保护(LEDOCP: LED over current protection), 过升压保护(FBMAX: over boost protection)等。因此,可在更宽的输出电压条件及负载条件下使用。

* 本产品是标准级的产品。本产品不建议使用的车载设备。
型号
Status
封装
包装数量
最小独立包装数量
包装形态
RoHS
BD9489F-GE2 供应中 SOP16 2500 2500 Taping Yes
 
特性:
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
特点:
    • 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
 
 
 
 
技术信息
Application Note

Thermal Resistance