Datasheet > MP3387LGRT

MP3387LGRT

更新时间： 2024-11-22 01:22:43

品牌	Logo	应用领域
芯源 - MPS		/
页数	文件大小	规格书
14页	821K
描述
Step-up, 6 strings, Max.45mA/string, Combined Analog and PWM dimming, White LED Driver

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MP3387LGRT 数据手册

MP3387L

Step-up, 6 strings, Max.45mA/string,

Combined Analog

and PWM dimming, White LED Driver

The Future of Analog IC Technology

DESCRIPTION

FEATURES

The MP3387L is a step-up converter with 6-

channel current sources. It is designed for

driving the white LED arrays as backlighting of

middle or large size LCD panel.

•

6-String, Max 45mA/String

3V to 26V Input Voltage Range

3% Current Matching Accuracy Between

Strings

•

Programmable Switching Frequency

Selectable Combined Analog and PWM

Dimming Mode or Pure PWM Dimming

Mode

Combined Analog and PWM Dimming Mode

with 25% Dimming Transfer Point

24kHz to 27.5kHz Output Dimming

Frequency to eliminate audible noise

Programmable Over-Voltage Protection

Recoverable Thermal Shutdown Protection

Cycle by Cycle Over Current Protection

Under-Voltage Lockout

The MP3387L uses peak-current mode as its

PWM control architecture. The switching

frequency can be programmed by a resistor. It

generates an output voltage up to 45V from a

3V to 26V input supply. The MP3387L

independently regulates the current in each

LED string to the value set by an external

current-setting resistor.

•

The MP3387L applies 6 internal current

sources in each LED string terminal to achieve

a current balance with 3% current regulation

accuracy between strings. Its low 500mV

regulation voltage on LED current sources

reduces power loss.

TQFN24 (4X4mm) Package

APPLICATIONS

The MP3387L features external digital PWM

dimming and analog dimming, both of which

sharing a single input with 25% PWM duty cycle

as a transfer point. The mix-dimming strategy

helps to improve the dimming ratio. Also,

MP3387L automatically transfers the PWM

input signal 100Hz to 20kHz frequency to

24kHz to 27.5kHz to eliminate the audible noise.

•

Notebook PC

Small LCD TV

Handy Terminals Display

Automotive System and Tablet Computer

All MPS parts are lead-free, halogen 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.

MP3387L has rich protection modes to

guarantee safety operation. The protection

modes include recoverable OCP (over-current

protection), OVP (over-voltage protection), OTP

(over-temperature protection), any string of LED

short and open protection.

The MP3387L is available in TQFN24-

4mmX4mm package.

MP3387L Rev. 1.11

3/29/2016

www.MonolithicPower.com

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

12 3 4 5 6 7...14

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与MP3387LGRT相关器件

型号	品牌	获取价格	描述	数据表
MP3388DR	MPS	获取价格	LED Driver, 8-Segment, 4 X 4 MM, HALOGEN FREE, MO-220VGGD, QFN-24
MP3388DR-LF	MPS	获取价格	LED Driver, 8-Segment, 4 X 4 MM, HALOGEN FREE AND ROHS COMPLIANT, MO-220VGGD, QFN-24
MP3388DR-LF-Z	MPS	获取价格	LED Driver, 8-Segment, 4 X 4 MM, HALOGEN FREE AND ROHS COMPLIANT, MO-220VGGD, QFN-24
MP3388DR-Z	MPS	获取价格	LED Driver, 8-Segment, 4 X 4 MM, HALOGEN FREE, MO-220VGGD, QFN-24
MP3388EY	MPS	获取价格	LED Driver, 8-Segment, PDSO28, HALOGEN FREE, MS-013AE, SOIC-28
MP3388EY-LF	MPS	获取价格	LED Driver, 8-Segment, PDSO28, HALOGEN FREE AND ROHS COMPLIANT, MS-013AE, SOIC-28
MP3388EY-LF-Z	MPS	获取价格	LED Driver, 8-Segment, PDSO28, HALOGEN FREE AND ROHS COMPLIANT, MS-013AE, SOIC-28
MP3388EY-Z	MPS	获取价格	LED Driver, 8-Segment, PDSO28, HALOGEN FREE, MS-013AE, SOIC-28
MP3388S	MPS	获取价格	50V, 8-String, Step-Up, White LED Driver
MP3388SGR	MPS	获取价格	50V, 8-String, Step-Up, White LED Driver

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