- 您现在的位置：买卖IC网 > Datasheet目录356 > SC4539ULTRT (Semtech)IC LED DRIVR CONST CURRENT 8MLPD Datasheet资料下载
参数资料
| 型号： | SC4539ULTRT |
| 厂商： | Semtech |
| 文件页数： | 8/14页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVR CONST CURRENT 8MLPD |
| 标准包装： | 1 |
| 恒定电流： | 是 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 680kHz ~ 920kHz |
| 电源电压： | 2.8 V ~ 5.5 V |
| 输出电压： | 5 V ~ 22 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-UFQFN 裸露焊盘 |
| 供应商设备封装： | 8-UMLP |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 其它名称： | SC4539ULTRTDKR |
SC4539
Pin Descriptions
Pin #
1
2
3
4
5
6
7
8
T
Pin Name
LX
EN
ISET
COMP
OUT
BL
GND
IN
Thermal Pad
Pin Function
Collector of the internal power transistor — connect to the boost inductor and rectifying Schottky
diode.
Enable and brightness control pin for LED string
Output current set pin — connect a resistor from this pin to GND to set the maximum current.
Output of the internal transconductance error amplifier — this pin is used for loop
compensation and soft-start. Connect a 1.27k Ω resistor and 47nF capacitor in series to GND.
Boost output voltage monitor pin — internal over-voltage protection monitors the voltage at this
pin. Connect this pin to the output capacitor and the anode of the LED string.
LED constant current sink — connect this pin to the cathode of the LED string
Ground
Power supply pin — bypass this pin with a capacitor close to the pin
Pad for heatsinking purposes — connect to the ground plane using multiple vias.
Not connected internally.
8
相关PDF资料 |
PDF描述 |
|---|---|
| SC4540ULTRT | IC LED DRIVR CONST CURRENT 8MLPD |
| SC4541SKTRT | IC LED DRVR BACKLIGHT SOT23-6 |
| SC5010ULTRT | IC LED DRVR BACKLIGHT I2C 28QFN |
| SC600BIMLTRT | IC LED DRIVR WHITE BCKLGT 10-MLP |
| SC618ULTRT | IC LED DRIVER PHOTO FLASH 10-MLP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SC453EVB | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Portable, VID Programmed Single Phase Power Supply Controller |
| SC453MLTRT | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Portable, VID Programmed Single Phase Power Supply Controller |
| SC453TS.TRT | 制造商:SEMTECH 功能描述:I.C. |
| SC453TSTRT | 制造商:Semtech Corporation 功能描述:Power Supply Controller 28-Pin TSSOP T/R |
| SC454 | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Single-Phase Single Chip IMVP-6/6+ Vcore Power Supply |
发布紧急采购，3分钟左右您将得到回复。