Datasheet > MP3383

MP3383

更新时间： 2024-04-09 19:02:32

品牌	Logo	应用领域
芯源 - MPS		控制器
页数	文件大小	规格书
23页	966K
描述
4 串、每串最大 400mA、最大 80V VOUT、升压 WLED 控制器

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MP3383 数据手册

MP3383

4-String, Max 400mA/String, Max 80V V_OUT

Step-Up WLED Controller

DESCRIPTION

FEATURES

The MP3383 is a step-up controller with four

LED current channels, designed to drive WLED

arrays for large LCD panel backlighting

applications. The MP3383 can expand the

number of LED channels with two or more ICs in

parallel sharing a single power source.

•

4-String, Max 400mA/String WLED Driver

6V to 33V Input Voltage (V_IN) Range

12V Gate Voltage (V_GATE) (V_IN> 13V)

80V Absolute Maximum Rating for Each

String

1.8% Current Matching Accuracy between

Each String

3% Current Accuracy

•

The MP3383 employs peak current control mode

with a fixed switching frequency (f_SW) that is

configurable via an external setting resistor. The

MP3383 drives an external MOSFET to boost up

the output voltage (V_OUT) from a 6V to 33V input

voltage (V_IN) supply. It also regulates the current

in each LED string to the value set by an external

current-setting resistor.

•

Direct PWM Dimming

Analog Dimming Mode with PWM Input

Cascading Capability with a Single Power

Source

LED Open and Short Protection

Configurable Recoverable Over-Voltage

Protection (OVP)

Over-Temperature Protection (OTP)

Short Inductor and Diode Protection

Available in SOIC-16 and TSSOP-16EP

Packages

•

The MP3383 applies four internal current

sources for current balancing. The current

matching achieves 1.8% regulation accuracy

among strings. The low regulation voltage on the

LED current sources reduces power loss.

•

The MP3383 supports direct pulse-width

modulation (PWM) dimming as well as analog

dimming using a PWM input. Full protection

features include over-current protection (OCP),

over-temperature protection (OTP), under-

APPLICATIONS

•

Desktop LCD Flat-Panel Displays

All-in-One PCs

2D and 3D LCD TVs

voltage

protection

(UVP),

over-voltage

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,” the MPS logo, and “Simple, Easy Solutions” are

trademarks of Monolithic Power Systems, Inc. or its subsidiaries.

protection (OVP), LED short and open protection,

and inductor and diode short protection.

The MP3383 is available in SOIC-16 and

TSSOP-16EP packages.

MP3383 Rev. 1.0

5/2/2022

MonolithicPower.com

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

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