Datasheet > MP3394S

MP3394S

更新时间： 2024-11-26 01:07:43

品牌	Logo	应用领域
芯源 - MPS		/
页数	文件大小	规格书
17页	425K
描述
Step-Up, 4-String Max 200mA/String White LED Driver

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MP3394S 数据手册

MP3394S

Step-Up, 4-String

Max 200mA/String White LED Driver

The Future of Analog IC Technology

DESCRIPTION

FEATURES

•

4-String, Max 200mA/String WLED Driver

5V to 28V Input Voltage Range

2.5% Current Matching Accuracy Between

Strings

The MP3394S is a step-up controller with 4

current channels. It’s designed to drive WLED

arrays for large-size LCD-panel backlighting

applications. The MP3394S is flexible, and can

expand the number of LED channels with 1 or 2

MP3394S in parallel operating from a single

inductive power source.

•

Programmable Switching Frequency

PWM or DC Input Burst PWM Dimming

Open and Short LED Protection

Programmable Over-Voltage Protection

Cascading Capability with a Single Power

Source

The MP3394S uses an architecture of current –

mode and fixed operation frequency The

frequency is programmable by an external

frequency-setting resistor. MP3394S drives an

external MOSFET to boost up the output

voltage from a 5V to 28V input supply. It

regulates the current in each LED string to the

programmed value set by an external current-

setting resistor.

•

Under-Voltage Lockout

Thermal Shutdown

TSSOP16EP,

Packages

SOIC16

and

SOIC20

APPLICATIONS

•

Desktop LCD Flat Panel Displays

Flat Panel Video Displays

2D/3D LCD TVs and Monitors

The MP3394S applies 4 internal current

sources for current balance. The current

matching can achieve 2.5% regulation accuracy

between strings. Its low regulation voltage on

LED current sources reduces power loss and

improves efficiency.

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

status, please visit MPS website under Quality Assurance. “MPS” and “The

Future of Analog IC Technology” are Registered Trademarks of Monolithic

Power Systems, Inc.

An external PWM input signal or DC input

signal controls PWM dimming. In DC-input

dimming mode, the dimming PWM signal can

be generated internally and the dimming

frequency is programmed by an external setting

capacitor.

TYPICAL APPLICATION

VIN

5V to 28V

C_IN

C_OUT

MP3394S

VIN

GATE

VCC

COMP

C_VCC

ISENSE

_COMPR_COMP

R_SENSE

Enable

GND

OSC

R_OSC

OVP

BOSC

LED1

R_BOSC

C_BOSC

LED2

LED3

LED4

DIMMING

DBRT

ISET

R_SET

MP3394S Rev. 1.03

3/21/2013

www.MonolithicPower.com

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

12 3 4 5 6 7...17

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与MP3394S相关器件

型号	品牌	获取价格	描述	数据表
MP3394SGF	MPS	获取价格	Step-Up, 4-String Max 200mA/String White LED Driver
MP3394SGS	MPS	获取价格	Step-Up, 4-String Max 200mA/String White LED Driver
MP3394SGY	MPS	获取价格	Step-Up, 4-String Max 200mA/String White LED Driver
MP3397	MPS	获取价格	Step-Up, 4-String Max 350mA/String White LED Driver
MP3397EF	MPS	获取价格	Step-Up, 4-String Max 350mA/String White LED Driver
MP3397ES	MPS	获取价格	Step-Up, 4-String Max 350mA/String White LED Driver
MP3398A	MPS	获取价格	Step up, 4 strings, Max. 350mA/string Analog and PWM dimming, White LED Controller
MP3398AGF	MPS	获取价格	Step up, 4 strings, Max. 350mA/string Analog and PWM dimming, White LED Controller
MP3398AGS	MPS	获取价格	Step up, 4 strings, Max. 350mA/string Analog and PWM dimming, White LED Controller
MP3398AGY	MPS	获取价格	Step up, 4 strings, Max. 350mA/string Analog and PWM dimming, White LED Controller

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