Datasheet > MP7235

MP7235

更新时间： 2024-11-28 17:01:55

品牌	Logo	应用领域
芯源 - MPS		驱动驱动器
页数	文件大小	规格书
31页	2757K
描述
36V、3A、同步降压红外辐射 LED 驱动器

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MP7235 数据手册

MP7235

36V, 3A, Synchronous Buck

Infrared Radiation LED Driver

DESCRIPTION

FEATURES

The MP7235 is a high-frequency, synchronous,

rectified, step-down, switch-mode LED driver

with integrated power MOSFETs. It offers a very

compact solution to achieve 1.5A of continuous

output current (I_LED) and 3A of peak LED current

(I_PEAK), with excellent load and line regulation

across a wide input supply range. The MP7235

also offers synchronous mode operation to

achieve high efficiency.

•

Built for a Wide Range of IR LED

Applications:

o Wide 4V to 36V Operating Input Voltage

(V_IN) Range

o Up to 1.5A of Continuous LED Current

(I_LED

)

o Up to 3A of Peak LED Current (I_PEAK

)

with Low Dimming Frequencies at Small

Duty Cycles

o PWM Dimming Frequency: 10Hz to

2kHz

o Compatible with 30fps, 60fps, and

120fps Dimming

High Performance for Improved

Thermals:

o 85mΩ/50mΩ Low R_DS(ON)Internal Power

MOSFETs

The MP7235 supports low pulse-width

modulation (PWM) dimming frequencies at small

dimming duty cycles. The device can support

PWM dimming frequencies as low as 10Hz to

adjust infrared radiation (IR) in LED driver

applications. It is compatible with 30fps, 60fps,

and 120fps dimming.

•

Current-mode operation provides fast transient

response and eases loop stabilization.

o 0.2V Reference Voltage (V_REF

)

o High-Efficiency Synchronous Mode

Operation

Optimized for EMC and EMI:

o Default 2.2MHz Switching Frequency

(f_SW)

o EMI Reduction Techniques

Full Protection Features:

o LED Short and Open Fault Indication

o OCP with Valley Current Detection

o Thermal Shutdown

Full protection features include over-current

protection (OCP) and thermal shutdown.

•

The MP7235 requires a minimal number of

readily available, standard external components.

It is available in a space-saving QFN-13

(2.5mmx3mm) package.

Additional Features:

o FCCM

o Internal Soft Start (SS)

o Available in a QFN-13 (2.5mmx3mm)

Package

o Available in a Wettable Flank Package

o CISPR25 Class 5 Compliant

APPLICATIONS

o Infrared (IR) LED Drivers for Driver

Monitoring Systems (DMS)

o IR Illumination for Cameras

o Surveillance Systems

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.

MP7235 Rev. 1.0

1/4/2022

MonolithicPower.com

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

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