UC2853 高功率因数前置稳压器

UC2853 描述

The UC3853 provides simple, yet high performance active power factor correction. Using the same control technique as the UC1854, this 8-pin device exploits a simplified architecture and an internal oscillator to minimize external component count. The UC3853 incorporates a precision multiplier/squarer/divider circuit, voltage and current loop error amplifiers, and a precision voltage reference to implement average current mode control with RMS line voltage compensation. This control technique maintains constant loop gain with changes in input voltage, which minimizes input line current distortion over the worldwide input voltage range.

The internal 75kHz oscillator includes an external clock input, allowing synchronization to downstream converters.

	UC2853	UC3853
UVLO Thresholds On/Off(V)	11.5/9.5	11.5/9.5
Operating Supply(Max)(V)	40	40
Startup Current(mA)	0.25	0.25
Operating Supply Current(mA)	10	10
Duty Cycle(Max)(%)	95	95
Practical Operating Frequency(Max)(MHz)	0.115	0.115
Pin/Package	8PDIP, 8SOIC	8PDIP, 8SOIC
Rating	Catalog	Catalog

UC2853 特性

• Complete 8-pin Power Factor Solution
• Reduced External Components
• RMS Line Voltage Compensation
• Precision Multiplier/Squarer/Divider
• Internal 75kHz Synchronizable Oscillator
• Average Current Mode PWM Control
• Overvoltage Protection Comparator
• High Current, Clamped Gate Driver

UC2853 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
UC2853D	ACTIVE	-40 to 85	2.30 | 1ku	SOIC (D) | 8	75 | TUBE	UC2853D
UC2853DG4	ACTIVE	-40 to 85	2.30 | 1ku	SOIC (D) | 8	75 | TUBE	UC2853D
UC2853DTR	ACTIVE	-40 to 85	1.90 | 1ku	SOIC (D) | 8	2500 | LARGE T&R	UC2853D
UC2853DTRG4	ACTIVE	-40 to 85	1.90 | 1ku	SOIC (D) | 8	2500 | LARGE T&R	UC2853D
UC2853N	ACTIVE	-40 to 85	2.30 | 1ku	PDIP (N) | 8	50 | TUBE	UC2853N
UC2853NG4	ACTIVE	-40 to 85	2.30 | 1ku	PDIP (N) | 8	50 | TUBE	UC2853N

UC2853 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
UC2853D	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR		UC2853D
UC2853DG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	UC2853DG4	UC2853DG4
UC2853DTR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR		UC2853DTR
UC2853DTRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	UC2853DTRG4	UC2853DTRG4
UC2853N	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type		UC2853N
UC2853NG4	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	UC2853NG4	UC2853NG4

UC2853 应用技术支持与电子电路设计开发资源下载

1. UC2853 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)

UC2853 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
UC2853 评估模块	UC2853EVM	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