Datasheet > BD9394FP_14

BD9394FP_14

更新时间： 2024-12-01 01:14:11

品牌	Logo	应用领域
罗姆 - ROHM		/
页数	文件大小	规格书
32页	1105K
描述
White LED Driver for large LCD Panels (DCDC Converter type)

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BD9394FP_14 数据手册

Datasheet

LED Drivers for LCD Backlights

White LED Driver for large LCD

Panels (DCDC Converter type)

BD9394FP, BD9394EFV

●General Description

●Features

BD9394FP, BD9394EFV is a high efficiency driver for

white LEDs and designed for large LCDs. This IC is

built-in a boost DCDC converters that employ an array of

LEDs as the light source. BD9394FP, BD9394EFV has

some protect function against fault conditions, such as

the over-voltage protection (OVP), the over current limit

protection of DCDC (OCP), the short circuit protection

(SCP), the open detection of LED string. Therefore

BD9394FP, BD9394EFV is available for the fail-safe

design over a wide range output voltage.

 4ch LED constant current driver and DC/DC converter

 Maximum LED Current: 150mA

 LED Feedback Voltage: 0.37V (@NADIM=2.62V),

so lower heat. Adjustable Feed Back Voltage

by following LED Current setting.



2% LED current accuracy (NADIM=2.62V,

when each LED is set to 100mA)

 Analog current (Linear) dimming at NADIM pin

 LED pin rating 60V

 Individual detection and individual LED OFF for both

open and short circuits

●Key Specification

 Built-in ISET pin short-circuit protection circuit

 Set Soft-Start time by external capacitor.

 FET’s Gate (N pin) is driven by 5.8V swing

 Built-in Vout discharge circuit for shutdown

 Built-in Vout overvoltage protection (OVP) /

reduced voltage protection (SCP) circuit

 Adjustable LED Short Protection Voltage

by LSP terminal

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

 LED minimum current

 LED maximum current:

 Oscillator frequency:

 Operating Current:

30mA

150mA

150kHz (RT=100kΩ)

4.5mA (Typ.)

Operating temperature range:

-40℃ to +85℃

●Applications

 HSOP20, HTSSOP-B24 package with high heat

radiation efficiency

TV, Computer Display, Notebook, LCD Backlighting

●Package

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

14.90mm x 7.80mm x 2.10mm

7.80mm x 7.60mm x 1.00mm

HSOP20

HTSSOP-B24

● Typical Application Circuit (4 light with PWM)

Fig.1(a) HSOP20

Fig.1(b) HTSSOP-B24

VIN

Inductor

VIN

Diode

CIN

COUT

REG58

CREG

FIN1, 2

RN2

FET

ON/OFF

REG58

STB

RVCC

VCC

RCS

DN RN1

CVCC

DCDC_GND

LED4

CLED4

RRT

LED3

GND

ROVP1

ROVP2

CLED3

COVP

OVP

LED_GND

RFB CFB1

LED2

LED1

REG58

CLED2

CLED1

RLSP1

RLSP2

CFB2

LSP

CLSP

CSS

PWM

GND

ISET

AUTO

NADIM

RISET

CAUTO

NADIM

Fig.2 Typical Application Circuit

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

.www.rohm.com

TSZ02201-0F1F0C100180-1-2

09.May.2014 Rev.003

1/28

TSZ22111・14・001

12 3 4 5 6 7...32

中文翻译

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与BD9394FP_14相关器件

型号	品牌	获取价格	描述	数据表
BD9394FP-E2	ROHM	获取价格	White LED Driver for large LCD Panels (DCDC Converter type)
BD9397EFV	ROHM	获取价格	White LED Driver for large LCD panel
BD9397EFV_15	ROHM	获取价格	White LED Driver for large LCD panel
BD9397EFV-E2	ROHM	获取价格	White LED Driver for large LCD panel
BD9397EFV-GE2	ROHM	获取价格	LED Driver, 24-Segment, PDSO40, 13.60 X 7.80 MM, 1 MM HEIGHT, 0.65 MM PITCH, ROHS COMPLIAN
BD939F	NXP	获取价格	SILICON EPITAXIAL BASE POWER TRANSISTORS
BD939F	SAVANTIC	获取价格	Silicon NPN Power Transistors
BD939F	ISC	获取价格	isc Silicon NPN Power Transistor
BD939F	NJSEMI	获取价格	Trans GP BJT NPN 100V 3A
BD93E11GWL	ROHM	获取价格	BD93E11GWL是一款采用基带通信且支持USB Power Delivery（以下简称

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