UCC2961 高级初级侧启动控制器

	UCC2961
Duty Cycle(Max)(%)	72
Frequency(Max)(kHz)	400
Pin/Package	14SOIC
Regulated Outputs(#)	1
Operating Temperature Range(°C)	-40 to 85
Rating	Catalog

UCC2961 描述

The UCC3961 advanced primary-side startup controller is a unique solution that provides all the primary-side functions required for a single-ended, isolated, switch-mode power converter incorporating secondary-side PWM control. It is usable with a wide range of secondary control circuits and is especially well suited for systems where sophisticated handling of overload conditions is required.

Secondary-side control assumes that output voltage and current measurements are interfaced directly to an output ground-referenced PWM stage that develops the power switch command for the supply. This digital PWM command can then be transmitted to the primary-side power switch through a simple and low-cost isolating pulse transformer.

UCC2961 特性

• Operates with Secondary-Side PWM Control
• Isolated PWM Command through a Pulse Transformer
• Initial Free-Running Soft-Startup with Duty-Cycle Clamping
• Up to 400-kHz Synchronizable Switching Frequency
• High-Current FET Drive (1.5-A Sink, 0.75-A Source)
• Multi-Mode Overcurrent Protection with Restart, Latching, or Cycle-by-Cycle Current Limiting
• Programmable Volt-Second Clamp for Transformer Reset
• Undervoltage Lockout with 2-V Hysteresis
• Low-Current Startup with Optional Disconnect
• Programmable Overvoltage and Undervoltage Protection
• 8-pin Version Also Available (UCC3960)

UCC2961 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
UCC2961D	ACTIVE	-40 to 85	1.35 | 1ku	SOIC (D) | 14	75 | TUBE	UCC2961
UCC2961DG4	ACTIVE	-40 to 85	1.35 | 1ku	SOIC (D) | 14	75 | TUBE	UCC2961

UCC2961 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
UCC2961D	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR		UCC2961D
UCC2961DG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	UCC2961DG4	UCC2961DG4

UCC2961 应用技术支持与电子电路设计开发资源下载

1. UCC2961 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)

UCC2961 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
UCC2961 评估模块	UCC2961EVM	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