LT3755

量产

40V_IN、75V_OUT LED 控制器

数据手册 (Rev. E)

产品选型表

产品模型: 45

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产品详情

3000:1真彩色PWM^™调光
宽输入电压范围：4.5V至40V
输出电压最高可达75V
恒流和恒压调节
100mV高端电流检测
在升压、降压模式、降压-升压模式、SEPIC或反激式拓扑下驱动LED
可调频率：100kHz至1MHz
开路LED保护
具有迟滞的可编程欠压闭锁

改善开路LED状态引脚(LT3755-2)
频率同步(LT3755-1)
PWM断开开关驱动器
CTRL引脚提供模拟调光
低关断电流：<1µA
散热增强型16引脚QFN (3mm × 3mm)和MSOP封装
通过AEC-Q100汽车应用认证

参考资料

ADI 始终高度重视提供符合最高质量和可靠性水平的产品。我们通过将质量和可靠性检查纳入产品和工艺设计的各个范围以及制造过程来实现这一目标。出货产品的“零缺陷”始终是我们的目标。查看我们的质量和可靠性计划和认证以了解更多信息。

产品型号	引脚/封装图-中文版	文档	CAD 符号，脚注和 3D模型
LT3755EMSE#PBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755EMSE#TRPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755EMSE#WPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755EMSE#WTRPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755EMSE-1#PBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755EMSE-1#TRPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755EMSE-1#WPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755EMSE-1#WTRPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755EMSE-2#PBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755EMSE-2#TRPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755EMSE-2#WPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755EMSE-2#WTRPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755EUD#PBF	16-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755EUD#TRPBF	16-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755EUD-1#PBF	16-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755EUD-1#TRPBF	16-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755EUD-2#PBF	16-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755EUD-2#TRPBF	16-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755HMSE-2#PBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755HMSE-2#TRPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755HMSE-2#WPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755HMSE-2#WTRPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755IMSE#PBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755IMSE#TRPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755IMSE#WPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755IMSE#WTRPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755IMSE-1#PBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755IMSE-1#TRMPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755IMSE-1#TRPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755IMSE-1#WPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755IMSE-1#WTRPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755IMSE-2#PBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755IMSE-2#TRPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755IMSE-2#WPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755IMSE-2#WTRPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755IUD#PBF	16-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755IUD#TRPBF	16-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755IUD-1#PBF	16-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755IUD-1#TRPBF	16-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755IUD-2#PBF	16-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755IUD-2#TRPBF	16-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755JMSE-2#PBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755JMSE-2#TRPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755JMSE-2#WPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3755JMSE-2#WTRPBF	16-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys

产品型号	产品生命周期	PCN

10月 11, 2022 - 22_0244 Epoxy Change from Henkel 8290 to 8290A for MSOP Package
		PCN22_0244_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LT3755EMSE#PBF	量产
LT3755EMSE#TRPBF	量产
LT3755EMSE#WPBF	量产
LT3755EMSE#WTRPBF	量产
LT3755EMSE-1#WPBF	量产
LT3755EMSE-1#WTRPBF	量产
LT3755EMSE-2#WPBF	量产
LT3755EMSE-2#WTRPBF	量产
LT3755IMSE-2#WPBF	量产
LT3755IMSE-2#WTRPBF	量产
7月 12, 2022 - 22_0157 UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages [With Modification in BOM]
		PCN22_0157_Form Material_Report Qualification Results Summary Delta Qualification Matrix Detailed Parts List
LT3755EMSE#PBF	量产
LT3755EMSE#TRPBF	量产
LT3755EMSE#WPBF	量产
LT3755EMSE#WTRPBF	量产
LT3755HMSE-2#WPBF	量产
LT3755HMSE-2#WTRPBF	量产
6月 21, 2022 - 22_0050 UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices
		PCN22_0050_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LT3755EMSE#PBF	量产
LT3755EMSE#TRPBF	量产
2月 4, 2020 - 20_0132 Laser Top Mark for 16-Lead MSOP Packages Assembled in ADPG and UTAC
		PCN20_0132_Form Material_Report
LT3755EMSE#PBF	量产
LT3755EMSE#TRPBF	量产
LT3755EMSE#WPBF	量产
LT3755EMSE#WTRPBF	量产
LT3755EMSE-1#PBF	量产
LT3755EMSE-1#TRPBF	量产
LT3755EMSE-1#WPBF	量产
LT3755EMSE-1#WTRPBF	量产
LT3755EMSE-2#PBF	量产
LT3755EMSE-2#TRPBF	量产
LT3755EMSE-2#WPBF	量产
LT3755EMSE-2#WTRPBF	量产
LT3755HMSE-2#PBF	量产
LT3755HMSE-2#TRPBF	量产
LT3755HMSE-2#WPBF	量产
LT3755HMSE-2#WTRPBF	量产
LT3755IMSE#PBF	量产
LT3755IMSE#TRPBF	量产
LT3755IMSE#WPBF	量产
LT3755IMSE#WTRPBF	量产
LT3755IMSE-1#PBF	量产
LT3755IMSE-1#TRMPBF	过期
LT3755IMSE-1#TRPBF	量产
LT3755IMSE-1#WPBF	量产
LT3755IMSE-1#WTRPBF	量产
LT3755IMSE-2#PBF	量产
LT3755IMSE-2#TRPBF	量产
LT3755IMSE-2#WPBF	量产
LT3755IMSE-2#WTRPBF	量产
LT3755JMSE-2#PBF	量产
LT3755JMSE-2#TRPBF	量产
LT3755JMSE-2#WPBF	量产
LT3755JMSE-2#WTRPBF	量产
6月 5, 2024 - 24_0003 Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2)
		PCN24_0003_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LT3755EMSE#WPBF	量产
LT3755EMSE#WTRPBF	量产
LT3755EMSE-1#PBF	量产
LT3755EMSE-1#TRPBF	量产
LT3755EMSE-2#PBF	量产
LT3755EMSE-2#TRPBF	量产
LT3755HMSE-2#PBF	量产
LT3755HMSE-2#TRPBF	量产
LT3755HMSE-2#WPBF	量产
LT3755HMSE-2#WTRPBF	量产
LT3755IMSE#PBF	量产
LT3755IMSE#TRPBF	量产
LT3755IMSE#WPBF	量产
LT3755IMSE#WTRPBF	量产
LT3755IMSE-1#PBF	量产
LT3755IMSE-1#TRPBF	量产
LT3755IMSE-2#PBF	量产
LT3755IMSE-2#TRPBF	量产
LT3755JMSE-2#PBF	量产
LT3755JMSE-2#TRPBF	量产
LT3755JMSE-2#WPBF	量产
LT3755JMSE-2#WTRPBF	量产

这是最新版本的数据手册

硬件生态系统

部分模型	产品周期	描述
TimerBlox 1
LTC6992-1	量产	TimerBlox : 电压控制型脉宽调制器 (PWM)
多通道电压输出数模转换器 1
LTC2654	量产	具10ppm/ºC 最大值基准的四通道、12 位、轨至轨 DAC
理想二极管电桥 1
LT4320	推荐新设计使用	理想二极管桥控制器
数字温度传感器 1
LTC2991	推荐新设计使用	8 通道 I²C 电压、电流和温度监视器

部分模型	产品周期	描述
LTC2991	推荐新设计使用	8 通道 I²C 电压、电流和温度监视器

工具及仿真模型

LTspice 4

LTspice中提供以下器件型号：

LT3755
LT3755-1
LT3755-2

LTspice^®是一款强大高效的免费仿真软件、原理图采集和波形观测器，为改善模拟电路的仿真提供增强功能和模型。

评估套件

LT3755EUD-1演示板|升压LED驱动器控制器，8V ≤ VIN ≤ 40V，VLED高达54V @ 1A

立即购买更多内容

产品详情

演示电路1268B是一款高电压和高电流LED驱动器控制器，内置多拓扑、恒流、恒压LT3755-2 (1268B-A)或LT3755-1 (1268B-B)。LT3755-2具有开路LED状态引脚，同时LT3755-1支持外部频率同步。该演示电路作为升压拓扑进行装配，具有8V至40V输入电压范围、1A LED电流和高达54V的LED正向电压。

DC 1268B具有PWM调光、模拟调光、关断和开路LED过压保护功能。开路LED保护将LED电压箝位在56V，但是IC可以提供高达75V的输出电压。