LTC3862-1

量产

多相电流模式升压型 DC/DC 控制器

数据手册产品选型表

产品模型: 18

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产品详情

宽 V_IN 范围：8.5V 至 36V 运作
两相操作减小了输入和输出电容
固定频率、峰值电流模式控制
用于高电压 MOSFET 的 10V 栅极驱动
可调斜坡补偿增益
可调最大占空比 (高达 96%)
可调前沿消隐
±1% 内部电压基准
可利用一个外部电阻器来设置工作频率 (75kHz 至 500kHz)
可锁相固定频率：50kHz 至 650kHz
用于两相、3 相、4 相、6 相或 12 相操作的 SYNC 输入和 CLKOUT (可利用 PHASEMODE 引脚来设置)
内部 10V LDO 稳压器
24 引脚窄体 SSOP 封装
具 0.65mm 引脚间距的 5mm x 5mm QFN 封装
24 引脚耐热性能增强型 TSSOP 封装

LTC3862-1是一款两相恒定频率、电流模式升压和SEPIC控制器，该控制器可驱动N通道功率MOSFET。两相操作降低了系统滤波电容和电感要求。

工作频率可在75kHz至500kHz范围内使用一个外部电阻设置，并且可以利用内部PLL与外部时钟同步。使用SYNC输入、CLKOUT输出和PHASEMODE控制引脚可实现多相操作，从而提供2相、3相、4相、6相或12相操作。

其他特性包括具有栅极驱动器欠压锁定保护功能的内部10V LDO、具有可编程迟滞的精密RUN引脚阈值、软启动以及可编程前沿消隐和最大占空比。


产品型号	V_IN范围	INTV_CC	UV+	UV–
LTC3862	4V至36V	5V	3.3V	2.9V
LTC3862-1	8.5V至36V	10V	7.5V	7.0V
LTC3862-2	5.5V至36V	10V	4.4V	3.9V

应用

汽车、电信和工业电源

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
LTC3862EFE-1#PBF	24-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3862EFE-1#TRPBF	24-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3862EGN-1#PBF	24-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3862EGN-1#TRPBF	24-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3862EUH-1#PBF	24-Lead QFN (5mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3862EUH-1#TRPBF	24-Lead QFN (5mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3862HFE-1#PBF	24-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3862HFE-1#TRPBF	24-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3862HGN-1#PBF	24-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3862HGN-1#TRPBF	24-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3862HUH-1#PBF	24-Lead QFN (5mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3862HUH-1#TRPBF	24-Lead QFN (5mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3862IFE-1#PBF	24-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3862IFE-1#TRPBF	24-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3862IGN-1#PBF	24-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3862IGN-1#TRPBF	24-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3862IUH-1#PBF	24-Lead QFN (5mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3862IUH-1#TRPBF	24-Lead QFN (5mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

产品型号	产品生命周期	PCN

2月 14, 2025 - 25_0016 Bond Wire Change from Gold to Copper Wire (Notification Only)
		PCN25_0016_Form Material_Report Qualification Results Summary
LTC3862EFE-1#PBF	量产
LTC3862EFE-1#TRPBF	量产
LTC3862EUH-1#PBF	量产
LTC3862EUH-1#TRPBF	量产
LTC3862HFE-1#PBF	量产
LTC3862HFE-1#TRPBF	量产
LTC3862HUH-1#PBF	量产
LTC3862HUH-1#TRPBF	量产
LTC3862IFE-1#PBF	量产
LTC3862IFE-1#TRPBF	量产
LTC3862IUH-1#PBF	量产
LTC3862IUH-1#TRPBF	量产
4月 6, 2022 - 22_0068 Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL
		PCN22_0068_Form Material_Report Delta Qualification Matrix
LTC3862EFE-1#PBF	量产
LTC3862EFE-1#TRPBF	量产
LTC3862HFE-1#PBF	量产
LTC3862HFE-1#TRPBF	量产
LTC3862IFE-1#PBF	量产
LTC3862IFE-1#TRPBF	量产
8月 10, 2022 - 22_0177 Laser Top Mark Conversion for QSOP20_24_28 Assembled in ADPG [PNG] and UTL
		PCN22_0177_Form Material_Report Delta Qualification Matrix
LTC3862EGN-1#PBF	量产
LTC3862EGN-1#TRPBF	量产
LTC3862HGN-1#PBF	量产
LTC3862HGN-1#TRPBF	量产
LTC3862IGN-1#PBF	量产
LTC3862IGN-1#TRPBF	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
硅振荡器 2
LTC6908		具扩频调制功能、采用电阻器设定频率的 SOT-23 封装振荡器
LTC6909	量产	采用扩频调制、可提供 1 至 8 个输出的多相硅振荡器
浪涌抑制器、过压和过流保护 1
LT4363	推荐新设计使用	具电流限制功能的高电压浪涌抑制器

工具及仿真模型

LTspice 1

LTC3862-1 Demo Circuit - 2-Phase Boost Converter for Diesel Fuel Injector Actuator (8.5-28V to 72V @ 1.5A)

LTspice中提供以下器件型号：

LTC3862
LTC3862-1
LTC3862-2

LTpowerCAD 1

LTC3862-1 Project - Datasheet Page 37 App.

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。

LTpowerCAD^®是一种电源设计程序，它选择功率级元件，提供详细效率信息，显示快速环路波特图稳定性和负载瞬态分析，并可导出至LTspice进行仿真。

评估套件

LTC3862EGN-1 Demo Board | 8V to 36VIN, 48VOUT @ 5A, Multiphase Boost Controller

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产品详情

Demonstration circuit 1286A is DC/DC boost converter featuring the LTC3862EGN/-1 constant frequency current mode boost controllers. The DC1286A-A (LTC3862) operates over 5V to 36V input and provides 2A-5A of output current at 48V output. The DC1286A-B (LTC3862-1, higher V_IN min and higher gate drive) operates over 8V to 36V input and provides 3A-5A of output current at 48V output. The 200kHz constant frequency operation results in small and efficient circuit. The converter provides high output voltage accuracy (typically ±3%) over wide load range with no minimum load requirement. The demonstration circuit can be easily modified to generate different output voltages.

资料

DC1286A - Design File
910.00K

DC1286A - Demo Manual
2.00M

DC1286A - Schematic
38.00K

LTC3862-1

产品详情

参考资料

数据手册 1

可靠性数据 1

用户手册 1

技术文章 2

硬件生态系统

工具及仿真模型

LTspice 1

LTspice中提供以下器件型号：

LTpowerCAD 1

评估套件

产品详情

资料

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