Datasheet > BD9413F

BD9413F

更新时间： 2024-12-01 01:17:23

品牌	Logo	应用领域
罗姆 - ROHM		/
页数	文件大小	规格书
37页	1075K
描述
1ch Boost up type White LED Driver for large LCD

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BD9413F 数据手册

Datasheet

LED Drivers for LCD Backlights

1ch Boost up type

White LED Driver for large LCD

BD9413F

1.1 General Description

Key Specifications

BD9413F is a high efficiency driver for white LEDs and is

designed for large LCDs. BD9413F has a boost DCDC

converter that employs an array of LEDs as the light

source.

 Operating power supply voltage range: 9.0V to 35.0V

 Oscillator frequency of DCDC: 150kHz (RT=100kΩ)

 Operating Current:

3.3 mA(Typ.)

-40°C to +105°C

 Operating temperature range:

BD9413F has some protect functions against fault

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

current limit protection of DCDC (OCP), LED OCP

protection, and Over boost protection (FBMAX).

Therefore it is available for the fail-safe design over a

wide range output voltage.

1.2 Package(s)

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

11.20mm x 7.80mm x 2.01mm

Pin pitch 1.27mm

SOP18

Features

 DCDC converter with current mode

 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

 LED Dimming PWM Over Duty Protection(ODP)

Figure 1. SOP18

Applications

 TV, Computer Display, LCD Backlighting

Typical Application Circuit

Vout

VCC

VIN

VCC

REG90

STB

UVLO

OVP

GATE

FAILB

PWM

ADIM

DIMOUT

ISENSE

DUTYP

DUTYON

GND

Figure 2. Typical Application Circuit

○Product structure：Silicon monolithic integrated circuit ○This product has not designed protection against radioactive rays

.www.rohm.com

TSZ02201-0F2F0C100120-1-2

28.Dec.2015 Rev.001

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