Datasheet > MP4689A

MP4689A

更新时间： 2022-02-26 14:05:40

品牌	Logo	应用领域
芯源 - MPS		/
页数	文件大小	规格书
10页	697K
描述
100V Input, 1A, High-Power LED Driver

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MP4689A 数据手册

MP4689A

100V Input, 1A,

High-Power LED Driver

DESCRIPTION

FEATURES

The MP4689A is a high-voltage input, step-

down, switching regulator that delivers up to 1A

of constant current to high-power LEDs. The

MP4689A integrates a high-side, high-voltage,

power MOSFET with a typical current limit of

3.5A.



Wide 4.5V to 100V Operating Input Range

No Output Capacitor Required

±3% LED Current Accuracy

Hysteretic Control: No Compensation

Up to 1MHz Switching Frequency

Up to 20kHz Dimming Frequency

Dedicated PWM Dimming Control Input

Short-Circuit Protection (SCP) with

Integrated High-Side MOSFET

Thermal Shutdown

200mV Reference Voltage for High

Efficiency

Up to 95% Efficiency

170μA Quiescent Current

Available in a SOIC-8 Package with an

Exposed Pad

The wide 4.5V to 100V input range

accommodates

variety of step-down

applications, making it ideal for automotive,

industrial, and general lighting applications.



Hysteresis current-mode control is applied for

very fast response, which makes the 20kHz

dimming frequency possible. MPS’s proprietary

feedback control scheme minimizes the number

of external components while delivering an LED

current with ±3% accuracy.



The switching frequency is up to 1MHz, which

allows for a small component size. Thermal

shutdown and short-circuit protection (SCP)

provide reliable and fault-tolerant operations. A

170µA quiescent current allows the MP4689A

to be used in battery-powered applications.

APPLICATIONS



High-Power LED Drivers

Automotive, Industry, and General Lighting

Constant Current Sources

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.

The MP4689A is available in a SOIC-8 package

with an exposed pad.

TYPICAL APPLICATION

MP4689A Rev. 1.0

2/17/2017

www.MonolithicPower.com

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

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