SGM3743数据手册SGMICRO中文资料规格书
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 |