ROHM Product Detail

BD9409F
升压型单通道 面向大屏幕的白色LED驱动器

BD9409F是白色LED用高效率驱动器,适用于大屏幕液晶驱动器。BD9409F内置了可向光源(LED串联连接的阵列)提供适当电压的DCDC转换器。BD9409F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。

Data Sheet 购买 *
* 本产品是标准级的产品。
本产品不建议使用于车载设备。

主要规格

 
型号 | BD9409F-E2
Status | 可购买
封装 | SOP16
包装形态 | Taping
包装数量 | 2000
最小独立包装数量 | 2000
RoHS | Yes

特性:

Topology

Boost

Vin(Min.)[V]

11.5

Vin(Max.)[V]

35

Number of Outputs

1

Switching Frequency (Max.)[MHz]

1

Dimming

DC / PWM

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

105

Package Size [mm]

10x6.2 (t=1.71)

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特点:

  • 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.
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