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SGM3743数据手册SGMICRO中文资料规格书

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厂商型号

SGM3743

功能描述

2-Channel White LED Driver for Smart Phone

制造商

SGMICRO SG Micro Corp

中文名称

圣邦股份 圣邦微电子(北京)股份有限公司

数据手册

下载地址下载地址二

更新时间

2025-8-14 20:21:00

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SGM3743规格书详情

描述 Description

The SGM3743 is a 2-channel white LED driver with high efficiency boost regulator. With an internal 40V/1.5A power MOSFET, it is well suited for smart phone backlight applications powered by 1-cell Li-Ion battery. The supply voltage operates from 3V to 18V.
The boost output has an adaptive voltage regulation with enough low headroom voltage. The SGM3743 is capable of driving up to 10S2P white LEDs while achieving high efficiency. It supports both PWM dimming control and one-wire digital dimming control. A programmable 9-bit brightness code allows for LED brightness control.
The SGM3743 includes a comprehensive set of protection features such as 38.5V over-voltage protection, over-current protection and thermal shutdown. Built-in soft-start circuitry avoids excessive inrush current during startup.
The SGM3743 is available in a Green WLCSP-1.32×1.32-9B package. It operates over an ambient temperature range of -40℃ to +85℃.

特性 Features

• Input Voltage Range: 3V to 18V

• Support up to 30mA Current per String

• Integrated 40V/1.5A MOSFET

• Up to 90% Efficiency

• Adaptive Boost Regulator

• Switching Frequency: 1.2MHz

• Optimized Rise Time and Fall Time to Reduce EMI on SW Pin

• 1% Regulated LED Current Matching and Accuracy

• Very Low Headroom Voltage: 90mV

• Independent Digital and PWM Dimming Control

• One-Wire Digital Dimming Interface

• PWM Dimming Interface

• Up to 9-Bit Resolution for LED Brightness

• Automatic Soft-Start for Reducing Inrush Current

• Dimming Stable in More than 1:500 PWM Range

• PFM Mode at Light Load

• Support 4.7μH Inductor

• Protection Features
Over-Voltage Protection
LED Open or Short Protection
Thermal Shutdown

• -40℃ to +85℃ Operating Temperature Range

• Available in a Green WLCSP-1.32×1.32-9B Package

应用 Application

Smart Phones
GPS Receivers
Handheld Devices
Backlight for Media Form Factor
LCD Displays with 1-Cell Battery

技术参数

  • 制造商编号

    :SGM3743

  • 生产厂家

    :SGMICRO

  • Channels per Package

    :2

  • VIN Max (V)

    :18

  • VIN Min (V)

    :3

  • LEDs per String

    :10

  • Shutdown Current (μA)

    :<1

  • Switching Frequency (MHz)

    :1.2

  • LED Connection Type

    :Common Anode

  • Quiescent Current (mA)

    :1.2

  • Dimming Method

    :PWM & One-Wire

  • Package

    :WLCSP-1.32×1.32-9B

  • Features

    :2 Feedback Channels

  • Status

    :量产

供应商 型号 品牌 批号 封装 库存 备注 价格
SGMICRO
21+
QFN
10000
原装现货假一罚十
询价
SGM
19+
WSP9
10937
一级代理,专注军工、汽车、医疗、工业、新能源、电力
询价
SGMRO/圣邦微
24+
NA/
3700
原厂直销,现货供应,账期支持!
询价
原装
20+
原装
56200
原装优势主营型号-可开原型号增税票
询价
SGMICRO/圣邦微
24+
WLCSP1.321.32
990000
明嘉莱只做原装正品现货
询价
SGMICRO
2024+
WLCSP9
500000
诚信服务,绝对原装原盘
询价
SGMICRO/圣邦微
23+
WLCSP-1.32×1.32-9B
52000
圣邦微电子全线供应,可提供样品
询价
SGMICRO(圣邦微)
24+
WLCSP9B
7350
现货供应,当天可交货!免费送样,原厂技术支持!!!
询价
SGMICRO/圣邦微
24+
WLCSP9
8000
原装,正品
询价
SGMICRO圣邦微
22+23+
WLCSP9
8000
新到现货,只做原装进口
询价