Datasheet > MP3398D

MP3398D

更新时间： 2024-11-22 01:12:51

品牌	Logo	应用领域
芯源 - MPS		/
页数	文件大小	规格书
19页	879K
描述
4-String, Max 350mA/String, Step-Up, White LED Controller with Analog and PWM Dimming

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MP3398D 数据手册

MP3398D

4-String, Max 350mA/String, Step-Up,

White LED Controller with

Analog and PWM Dimming

DESCRIPTION

FEATURES

The MP3398D is a step-up controller with four

current channels designed to drive WLED

arrays for large LCD panel backlighting

applications. The MP3398D allows for flexible

expansion of the number of LED channels by

two or more ICs in parallel sharing a single

inductive power source.

•

4-String, 350mA/String Max WLED Driver

5V-to-28V Input Voltage Range

2.5% Current Matching Accuracy between

Strings

Programmable Switching Frequency

PWM and Analog Dimming Mode

Cascading Capability with a Single Power

Source

LED Open and Short LED Protection

Programmable Over-Voltage Protection

(OVP)

Recoverable Thermal Shutdown

Over-Current Protection (OCP)

Inductor/Diode Short Protection

Under-Voltage Lockout (UVLO)

Available in SOIC16 and SOIC20 Packages

•

The MP3398D employs peak-current mode with

a fixed switching frequency. The frequency is

programmable by an external setting resistor.

The MP3398D drives an external MOSFET to

boost up the output voltage from a 5V to 28V

input supply and can regulate the current in

each LED string to the value set by an external

current-setting resistor.

•

The MP3398D applies four internal current

sources for current balancing. The current

matching can achieve 2.5% regulation accuracy

between strings. The low regulation voltage on

the LED current sources reduces power loss.

APPLICATIONS

•

Desktop LCD Flat-Panel Displays

Flat-Panel Video Displays

2D/3D LCD TVs and Monitors

The MP3398D can support both analog and

PWM dimming independently to meet different

dimming mode requests. Full protection

features include over-current protection (OCP),

over-temperature protection (OTP), under-

All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For

MPS green status, please visit the MPS website under Quality Assurance.

“MPS” and “The Future of Analog IC Technology” are registered trademarks of

Monolithic Power Systems, Inc.

voltage

protection

(UVP),

over-voltage

protection (OVP), LED short/open protection,

and inductor/diode short protection.

The MP3398D is available in SOIC16 and

SOIC20 packages.

TYPICAL APPLICATION

VOUT

VIN

GND

GATE

VIN

ISENSE

GND

VCC

COMP

MP3398D

OVP

LED1

LED2

LED3

OSC

ADIM

PWM

ISET

LED4

MP3398D Rev. 1.0

5/23/2016

www.MonolithicPower.com

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

12 3 4 5 6 7...19

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与MP3398D相关器件

型号	品牌	获取价格	描述	数据表
MP3398DGS	MPS	获取价格	4-String, Max 350mA/String, Step-Up, White LED Controller with Analog and PWM Dimming
MP3398DGY	MPS	获取价格	4-String, Max 350mA/String, Step-Up, White LED Controller with Analog and PWM Dimming
MP3398E	MPS	获取价格	4-String, Max 400mA/String, 80V Return, Step-Up, WLED Controller
MP3398EGF	MPS	获取价格	4-String, Max 400mA/String, 80V Return, Step-Up, WLED Controller
MP3398EGP	MPS	获取价格	4-String, Max 400mA/String, 80V Return, Step-Up, WLED Controller
MP3398H	MPS	获取价格	4 串、最大 400mA/串、80V 回收端电压、升压白光LED（WLED）控制器
MP3399EF	MPS	获取价格	LED Driver, 12-Segment, PDSO28, TSSOP-28
MP3399EF-LF	MPS	获取价格	LED Driver, 12-Segment, PDSO28, TSSOP-28
MP3399EF-LF-Z	MPS	获取价格	LED Driver, 12-Segment, PDSO28, ROHS COMPLIANT, MO-153AET, TSSOP-28
MP3399EF-Z	MPS	获取价格	LED Driver, 12-Segment, PDSO28, TSSOP-28

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