Datasheet > BD9408FV

BD9408FV

更新时间： 2024-12-01 11:11:15

品牌	Logo	应用领域
罗姆 - ROHM		驱动驱动器转换器
页数	文件大小	规格书
36页	2001K
描述
BD9408FV是白色LED用高效率驱动器，适用于大屏幕液晶驱动器。BD9408FV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。BD9408FV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 DC/DC)、LED过流保护(LED OCP: LED Over Current Protection)、过升压保护(FBMAX)等。因此，可在更宽的电压条件及负载条件下使用。

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BD9408FV 数据手册

Datasheet

LED Drivers for LCD Backlights

1ch Boost Up Type

White LED Driver for Large LCD

BD9408FV

General Description

Key Specifications

BD9408FV is a high efficiency driver for white LEDs and

it is designed for large LCDs. BD9408FV has a boost

DC/DC converter that can supply appropriate voltage to

the light source of LEDs series array.

BD9408FV has some protect functions against fault

conditions, such as over voltage protection(OVP), over

current limit protection of DC/DC(OCP), LED OCP

protection, and over boost protection(FBMAX). Therefore,

it is available for a wide range output voltage and a wide

range load current.



Operating Power Supply Voltage Range:

9.0V to 35.0V



Oscillator Frequency of DC/DC:

150kHz(R_RT=100kΩ)

3mA(Typ)



Operating Current:

Operating Temperature Range: -40°C to +105°C

Package

SSOP-B14

W(Typ) x D(Typ) x H(Max)

5.00mm x 6.40mm x 1.35mm

Features



DC/DC Converter with Current Mode

LED Protection Circuit(Over Boost Protection, LED

OCP Protection)



Over Voltage Protection(OVP) for the Output Voltage

Adjustable Soft Start

Adjustable Oscillation Frequency of DC/DC

Wide Range of Analog Dimming 0.2V to 3.0V

LED Dimming PWM Over Duty Protection(ODP)

Applications



TV, Computer Display

Other LCD Backlighting

SSOP-B14

Typical Application Circuit

部品の記号を記入すること

〇Product structure: Silicon monolithic integrated circuit 〇This product has no designed protection against radioactive rays

.www.rohm.com

TSZ22111 • 14 • 001

TSZ02201-0T2T0B500280-1-2

16.May.2018 Rev.001

1/33

12 3 4 5 6 7...36

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