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LT3590ESC8-PBF PDF预览

LT3590ESC8-PBF

更新时间: 2024-01-25 13:32:49
品牌 Logo 应用领域
凌特 - Linear 驱动器
页数 文件大小 规格书
16页 216K
描述
48V Buck Mode LED Driver in SC70 and 2mm x 2mm DFN

LT3590ESC8-PBF 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Active包装说明:VSSOP,
针数:8Reach Compliance Code:compliant
风险等级:5.27数据输入模式:SERIAL
接口集成电路类型:LED DISPLAY DRIVERJESD-30 代码:R-PDSO-G8
JESD-609代码:e3长度:2 mm
湿度敏感等级:1复用显示功能:NO
功能数量:1区段数:10
端子数量:8最高工作温度:85 °C
最低工作温度:封装主体材料:PLASTIC/EPOXY
封装代码:VSSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1 mm
最大供电电压:55 V最小供电电压:4.5 V
标称供电电压:48 V表面贴装:YES
温度等级:COMMERCIAL EXTENDED端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:0.5 mm
端子位置:DUAL处于峰值回流温度下的最长时间:30
宽度:1.25 mmBase Number Matches:1

LT3590ESC8-PBF 数据手册

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LT3590  
48V Buck Mode  
LED Driver in SC70  
and 2mm x 2mm DFN  
DESCRIPTION  
FEATURES  
The LT®3590 is a fixed frequency buck mode converter  
specifically designed to drive up to 10 LEDs in series from  
a 48V DC source. Series connection of the LEDs provides  
identical LED currents of up to 50mA, resulting in uniform  
brightness and eliminating the need for ballast resistors.  
A fixed frequency, current mode architecture results in  
stable operation over a wide range of input voltage and  
output voltage.  
4.5V to 55V Input Voltage Range  
Up to 50mA LED Current  
80mA, 55V Switch  
Internal Schottky Diode  
15μA Supply Current in Shutdown  
500μA Supply Current Operating, Not Switching  
Switching Frequency: 850kHz  
200mV Feedback Voltage with 5ꢀ Accuracy  
CTRL Input Performs Dimming and Shutdown  
The high switching frequency of 850kHz permits the use  
of tiny, low profile inductors and capacitors. A single pin  
performs both shutdown and accurate LED dimming  
control. The power switch, Schottky diode and control  
circuitry are all contained inside a space saving SC70  
package or 2mm × 2mm DFN package to allow a small  
converter footprint and lower parts cost.  
91ꢀ Efficiency (10 LEDs, 50mA)  
Requires Only 1μF Output Capacitor  
8-Lead SC70 Package  
6-Lead 2mm × 2mm DFN Package  
APPLICATIONS  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
LED Fixed Signage  
Traffic Signs  
Neon Sign Replacement  
TYPICAL APPLICATION  
Buck Mode Driver for Ten White LEDs  
Conversion Efficiency  
100  
1μF  
90  
80  
70  
50mA  
4Ω  
V
48V  
IN  
1μF  
V
IN  
LED  
SW  
470μH  
60  
CONTROL  
CTRL  
VREG  
LT3590  
GND  
50  
3590 TA01a  
0.1μF  
40  
10  
20  
LED CURRENT (mA)  
40  
0
50  
30  
3590 TA01b  
3590f  
1

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