SGM3733B数据手册SGMICRO中文资料规格书
SGM3733B规格书详情
描述 Description
With a 40V rated integrated switch FET, the SGM3733B is a boost converter that drives LEDs in series. The boost converter runs at 650kHz fixed switching frequency to reduce output ripple, improve conversion efficiency, and allows for the use of small external components.
The default white LED current is set with the external sensor resistor RSET, and the feedback voltage is regulated to 200mV, as shown in the typical application. During the operation, the LED current can be controlled using PWM signal through the CTRL pin. The duty cycle of pulse width modulation (PWM) signal determines the feedback reference voltage. In PWM mode, the SGM3733B does not burst the LED current; therefore, it does not generate audible noises on the output capacitor. For maximum protection, the device features integrated open LED protection that disables the SGM3733B to prevent the output voltage from exceeding the IC’s absolute maximum voltage ratings during open LED conditions.
The SGM3733B is available in Green TDFN-2×2-6L and TSOT-23-6 packages. It operates over an ambient temperature range of -40℃ to +85℃.
特性 Features
• Input Voltage Range: 2.7V to 20V
• 38V Open LED Protection
• 200mV Reference Voltage
• 500kΩ Pull-Down Resistor on CTRL Pin
• PWM Brightness Control
• 5kHz to 100kHz PWM Dimming Frequency Range
• Soft-Start Function
• Up to 90% Efficiency
• -40℃ to +85℃ Operating Temperature Range
• Available in Green TDFN-2×2-6L and TSOT-23-6 Packages
应用 Application
Cellular Phones
Portable Media Players
Ultra Mobile Devices
GPS Receivers
White LED Backlighting for Media Form Factor Display
技术参数
- 制造商编号
:SGM3733B
- 生产厂家
:SGMICRO
- Channels per Package
:1
- VIN Max (V)
:20
- VIN Min (V)
:2.7
- LEDs per String
:10
- Shutdown Current (μA)
:<1
- Switching Frequency (MHz)
:0.65
- LED Connection Type
:Common Anode
- Quiescent Current (mA)
:0.4
- Dimming Method
:PWM
- Package
:TDFN-2×2-6L
- Features
:650kHz
- Status
:不推荐用于新设计
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
SGMICRO |
21+ |
SOT23-6 |
10000 |
原装现货假一罚十 |
询价 | ||
SGMICRO |
16+ |
DFN |
10800 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
询价 | ||
SGMICRO/圣邦微 |
22+ |
100000 |
代理渠道/只做原装/可含税 |
询价 | |||
SGMRO/圣邦微 |
24+ |
NA/ |
80 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
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 | ||
24+ |
TDFN-22-6 |
20000 |
全新原厂原装,进口正品现货,正规渠道可含税!! |
询价 | |||
SGMICRO |
2024+ |
SOT23-6 |
500000 |
诚信服务,绝对原装原盘 |
询价 | ||
SGMICRO/圣邦微 |
23+ |
QFN |
50000 |
只做原装正品 |
询价 | ||
SGMICRO(圣邦微) |
24+ |
TDFN6L(2x2) |
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 |
25+ |
SMD |
880000 |
明嘉莱只做原装正品现货 |
询价 |