UC3907 负载均分控制器

UC3907 描述

The UCx907 family of load share controller ICs provides all the necessary features to allow multiple-independent-power modules to be paralleled such that each module supplies only its proportionate share to total-load current.

This sharing is accomplished by controlling each module’s power stage with a command generated from a voltage-feedback amplifier whose reference can be independently adjusted in response to a common-share-bus voltage. By monitoring the current from each module, the current share bus circuitry determines which paralleled module would normally have the highest output current and, with the designation of this unit as the master, adjusts all the other modules to increase their output current to within 2.

	UC2907	UC3907
Share Bus	Single-Ended	Single-Ended
Operating Supply Current(mA)	6	6
Startup Current(uA)	3000	3000
Operating Supply(Min)(V)	4.5	4.5
Operating Supply(Max)(V)	35	36
Pin/Package	16PDIP, 16SOIC	16PDIP, 16SOIC
Rating	Military	Military

UC3907 特性

• Fully Differential High Impedance Voltage Sensing
• Accurate Current Amplifier for Precise Current Sharing
• Opto Coupler Driving Capability
• 1.25% Trimmed Reference
• Master Status Indication
• 4.5-V to 35-V Operation

UC3907 芯片订购指南

器件	状态	温度 (oC)	价格（美元）	封装 | 引脚	封装数量 | 封装载体	丝印标记
UC3907DW	ACTIVE	-40 to 85	2.70 | 1ku	SOIC (DW) | 16	40 | TUBE	UC3907DW
UC3907DWG4	ACTIVE	-40 to 85	2.70 | 1ku	SOIC (DW) | 16	40 | TUBE	UC3907DW
UC3907DWTR	ACTIVE	-40 to 85	2.60 | 1ku	SOIC (DW) | 16	2000 | LARGE T&R	UC3907DW
UC3907DWTRG4	ACTIVE	-40 to 85	2.60 | 1ku	SOIC (DW) | 16	2000 | LARGE T&R	UC3907DW
UC3907N	ACTIVE	-40 to 85	2.70 | 1ku	PDIP (N) | 16	25 | TUBE	UC3907N
UC3907NG4	ACTIVE	-40 to 85	2.70 | 1ku	PDIP (N) | 16	25 | TUBE	UC3907N

UC3907 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
UC3907DW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR		UC3907DW
UC3907DWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	UC3907DWG4	UC3907DWG4
UC3907DWTR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR		UC3907DWTR
UC3907DWTRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	UC3907DWTRG4	UC3907DWTRG4
UC3907N	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type		UC3907N
UC3907NG4	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	UC3907NG4	UC3907NG4

UC3907 应用技术支持与电子电路设计开发资源下载

1. UC3907 数据资料 dataSheet 下载.PDF
2. TI 德州仪器AC/DC 和 DC/DC 电源产品选型与价格参考 . xls
3. Dual MOSFET Driver (PDF 498 KB)
4. 标准线性产品交叉参考 (Rev. D) (PDF 1058 KB)
5. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
6. 所选封装材料的热学和电学性质 (PDF 645 KB)
7. 高速数据转换 (PDF 1967 KB)
8. Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
9. Analog-to-Digital Converter Grounding Practices Affect System Performance (PDF 56 KB)
10. Principles of Data Acquisition and Conversion (PDF 50 KB)
11. Interleaving Analog-to-Digital Converters (PDF 64 KB)
12. What Designers Should Know About Data Converter Drift (PDF 95 KB)
13. Giving Delta-Sigma Converters a Gain Boost with a Front End Analog Gain Stage (PDF 70 KB)
14. Programming Tricks for Higher Conversion Speeds Utilizing Delta Sigma Converters (PDF 105 KB)

UC3907 工具与软件

名称	型号	公司	工具/软件类型
音频的快速搜索选择工具	AUDIO_SELECTION_TOOL	Texas Instruments	免费评估工具
UC3907 评估模块	UC3907EVM	Texas Instruments	开发电路板/EVM
用于音频转换器的软件驱动程序	CODECDRIVERS-SW	Texas Instruments	应用软件