Datasheet > SGM3732

SGM3732

更新时间： 2024-11-21 11:15:31

品牌	Logo	应用领域
圣邦微 - SGMICRO		/
页数	文件大小	规格书
10页	513K
描述
PWM Dimming, 38V Boost LED Driver

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SGM3732 数据手册

SGM3732

PWM Dimming, 38V Boost LED Driver

GENERAL DESCRIPTION

FEATURES

The SGM3732 is a high efficiency constant current LED

driver with a 1.1MHz PWM boost converter. An internal

low-side N-channel MOSFET and a high switching

frequency make the SGM3732 easy to use small

components and optimized for compact solutions.

● Input Voltage Range: 2.7V to 5.5V

● Support up to 10 LEDs in Series

● Integrated 40V/1.35A Switch

● High Efficiency PWM Boost Converter

● Switching Frequency: 1.1MHz

● Low Feedback Voltage: 200mV

The SGM3732 is capable of driving either up to 10

LEDs in series for 38V output or total 260mA current

with 3 LEDs in series per string while achieving high

conversion efficiency. The LED current can be

programmed by digital PWM dimming interface. The

PWM frequency is in the range from 2kHz to 60kHz.

● PWM Dimming Frequency: 2kHz to 60kHz

● 38V LED Open Protection

● 500kΩ Pull-Down Resistor on CTRL Pin

● Automatic Soft-Start for Reducing Inrush Current

● Less than 1µA Shutdown Current

● -40℃ to +85℃ Operating Temperature Range

● Available in a Green TSOT-23-6 Package

The SGM3732 provides very low shutdown current. It

also includes a comprehensive set of protection

features such as over-voltage protection, cycle-by-

cycle input current limit and thermal shutdown.

APPLICATIONS

The SGM3732 is available in a Green TSOT-23-6

package. It operates over an ambient temperature

range of -40℃ to +85℃.

LED Backlighting

Mobile Phones and Digital Photo Frames

Portable Devices

Automotive Navigation

SG Micro Corp

SEPTEMBER 2021 – REV. A. 4

www.sg-micro.com

12 3 4 5 6 7...10

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