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LT3517IFE#PBF

更新时间： 2024-11-25 13:09:39
品牌 Logo 应用领域
凌特 - Linear 驱动器开关
页数 文件大小 规格书
20页 281K
描述
LT3517 - Full-Featured LED Driver with 1.5A Switch Current; Package: TSSOP; Pins: 16; Temperature Range: -40°C to 85°C

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中文翻译

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LT3517IFE#PBF 技术参数

是否Rohs认证：符合生命周期：Transferred
零件包装代码：TSSOP包装说明：HTSSOP, TSSOP16,.25
针数：16Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：4.28Is Samacsys：N
数据输入模式：SERIAL接口集成电路类型：LED DISPLAY DRIVER
JESD-30 代码：R-PDSO-G16JESD-609代码：e3
长度：5 mm湿度敏感等级：1
复用显示功能：NO功能数量：1
区段数：3端子数量：16
最高工作温度：125 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：HTSSOP
封装等效代码：TSSOP16,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：260
电源：5 V认证状态：Not Qualified
座面最大高度：1.1 mm子类别：Display Drivers
最大供电电压：30 V最小供电电压：3 V
标称供电电压：5 V表面贴装：YES
技术：BIPOLAR温度等级：AUTOMOTIVE
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：30宽度：4.4 mm
最小 fmax：2.25 MHzBase Number Matches：1

LT3517IFE#PBF 数据手册

 浏览型号LT3517IFE#PBF的Datasheet PDF文件第2页浏览型号LT3517IFE#PBF的Datasheet PDF文件第3页浏览型号LT3517IFE#PBF的Datasheet PDF文件第4页浏览型号LT3517IFE#PBF的Datasheet PDF文件第5页浏览型号LT3517IFE#PBF的Datasheet PDF文件第6页浏览型号LT3517IFE#PBF的Datasheet PDF文件第7页 
LT3517  
Full-Featured LED Driver  
with 1.5A Switch Current  
FEATURES  
DESCRIPTION  
5000:1 True Color PWM™ Dimming Ratio  
The LT®3517 is a current mode DC/DC converter with an  
internal 1.5A, 45V switch specifically designed to drive  
LEDs. The LT3517 operates as a LED driver in boost,  
buck mode and buck-boost mode. It combines a tradi-  
tional voltage loop and a unique current loop to operate  
as a constant-current source or constant-voltage source.  
Programmableswitchingfrequencyallowsoptimizationof  
theexternalcomponentsforefficiencyorcomponentsize.  
The switching frequency of LT3517 can be synchronized  
to an external clock signal. The LED current is externally  
programmable with a 100mV sense resistor. The external  
PWMinputprovidesupto5000:1LEDdimming.TheCTRL  
pin provides further 10:1 dimming ratio.  
■
■
1.5A, 45V Internal Switch  
■
100mV High Side Current Sense  
■
Open LED Protection  
■
Adjustable Frequency: 250kHz to 2.5MHz  
■
Wide Input Voltage Range:  
Operation from 3V to 30V  
Transient Protection to 40V  
■
Operates in Boost, Buck Mode and Buck-Boost Mode  
■
Gate Driver for PMOS LED Disconnect  
Constant-Current and Constant-Voltage Regulation  
CTRL Pin Provides 10:1 Analog Dimming  
Low Shutdown Current: <1μA  
Available in (4mm × 4mm) 16-Lead QFN and 16-Pin  
TSSOP Packages  
■
■
■
■
The LT3517 is available in the tiny footprint 16-lead QFN  
(4mm × 4mm) and the 16-pin TSSOP packages. The  
LT3517 provides a complete solution for both constant-  
voltage and constant-current applications.  
L, LT, LTC, LTM, Burst Mode, Linear Technology and the Linear logo are registered  
trademarks and True Color PWM is a trademark of Linear Technology Corporation. All other  
trademarks are the property of their respective owners. Protected by U.S. Patents, including  
7199560, 7321203, 7746300.  
APPLICATIONS  
■
Display Backlighting  
■
Automotive and Avionic Lighting  
■
Illumination  
Scanners  
■
TYPICAL APPLICATION  
1A Buck Mode LED Driver  
Efficiency  
100  
CTRL = V  
REF  
10μF  
100mΩ  
PV  
IN  
90  
24V  
2.2μF  
1A  
80  
70  
15μH  
ISP  
ISN TG  
V
IN  
V
SW  
IN  
3.3V  
2.2μF  
SHDN  
60  
50  
40  
LT3517  
V
CTRL  
PWM  
FB  
SS  
RT  
REF  
PWM  
SYNC  
TGEN V  
VC GND  
REF  
0
20  
40  
60  
80  
100  
16.9k  
1MHz  
PWM DUTY CYCLE (%)  
0.1μF  
0.1μF  
3517 TA01b  
3517 TA01a  
3517ff  
1
1234567...20

中文翻译

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LT3517IFE#PBF 替代型号

型号 品牌 替代类型 描述 数据表
LT3517IFE#TRPBF Linear

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 LT3517 - Full-Featured LED Driver with 1.5A Switch Current; Package: TSSOP; Pins: 16; Temp

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