BD9479FV
(DCDC型)面向大屏幕的白色LED驱动器

BD9479FV是白色LED用高效率驱动器,适用于大屏幕液晶驱动器。BD9479FV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。
BD9479FV中内置了应对异常状态的几种保护功能。过电压保护(OVP: over voltageprotection ) 、过电流检测(OCP: over current limitprotection of DCDC)、短路电路保护(SCP: short circuitprotection)、开路保护(open detection of LEDstring)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 | BD9479FV-GE2
Status | 可购买
封装 | SSOP-B40
包装数量 | 2000
最小独立包装数量 | 2000
包装形态 | Taping
RoHS | Yes

特性:

Topology

Boost

Vin(Min.)[V]

9

Vin(Max.)[V]

35

Number of Outputs

8

Switching Frequency (Max.)[MHz]

0.8

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

85

Package Size [mm]

13.6x7.8 (t=2)

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特点:

・ 8ch LED constant current driver (external PNP Tr Type)
・ Maximum LED setting current 500mA (VREF pin setting)
・ Build-in DC/DC converter
・ Analog Dimming (Linear) function
・ Individual channel PWM Dimming function
・ LED protection function (Open Short protection) [PWM-independent Type]
・ Output short protection (OVP)
・ Built-in Timer latch function (CP)
・ Built-in under voltage Lockout function (UVLO)・over voltage protection (OVP)
・ Built-in FAIL indication function
・ Built-in OVP voltage Feedback function
・ Built-in PWM-independent soft start circuit
・ SSOP-B40 Package
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