Datasheet > SGM3736

SGM3736

更新时间： 2024-11-19 01:11:15

品牌	Logo	应用领域
圣邦微 - SGMICRO		/
页数	文件大小	规格书
11页	691K
描述
PWM Dimming, 38V Step-Up LED Driver

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SGM3736 数据手册

SGM3736

PWM Dimming, 38V Step-Up LED Driver

GENERAL DESCRIPTION

FEATURES

The SGM3736 is a versatile constant current LED

driver with high efficiency step-up converter

● Wide Output Range: Up to 10 Series LEDs

● Integrated 40V High Current Switch (1.35A Limit)

● 2.7V to 5.5V Input Voltage Range

● High Efficiency PWM Converter

architecture. The low-side power MOSFET is

integrated in the device, significantly shrinking the

overall PCB layout area and minimizing the total

number of external components. Unique technology

and high 1.35A current limit allow SGM3736 to drive up

to 38V output (10 LEDs in series). Alternatively,

SGM3736 can deliver 260mA total current with 3 series

LEDs per string. It can also maximize the current

capability while achieving high conversion efficiency.

The optimized 1.1MHz switching frequency results in

reduced conduction loss and small external component

size. Digital PWM dimming interface is integrated to

adjust LED current. The PWM frequency is in the range

from 2kHz to 60kHz.

● Low 200mV Feedback Voltage

● 500kΩ Pull-Down Resistor on EN/PWM Pin

● 2kHz to 60kHz PWM Dimming Frequency

● 38V Open LED Protection

● 1.1MHz Switching Frequency

● Integrated Soft-Start Function

● Less than 1µA Shutdown Current

● Simple, Small Solution Size

● Available in Green TDFN-2×2-8L Package

● -40℃ to +85℃ Operating Temperature Range

APPLICATIONS

Various protection features are built into the SGM3736,

including cycle-by-cycle input current limit protection,

open LED (output over-voltage) protection and thermal

shutdown protection. The leakage current in shutdown

mode is less than 1µA.

LED Backlighting

Mobile Phones

Handheld Devices

Digital Photo Frames

Automotive Navigation

The SGM3736 is available in Green TDFN-2×2-8L

package. It operates over an ambient temperature

range of -40℃ to +85℃.

REV. A. 3

SG Micro Corp

www.sg-micro.com

12 3 4 5 6 7...11

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