UC3526 稳压脉宽调制器

UC3526 描述

The UC1526 is a high performance monolithic pulse width modulator circuit designed for fixed-frequency switching regulators and other power control applications. Included in an 18-pin dual-in-line package are a temperature compensated voltage reference, sawtooth oscillator, error amplifier, pulse width modulator, pulse metering and setting logic, and two low impedance power drivers. Also included are protective features such as soft-start and under-voltage lockout, digital current limiting, double pulse inhibit, a data latch for single pulse metering, adjustable deadtime, and provision for symmetry correction inputs. For ease of interface, all digital control ports are TTL and B-series CMOS compatible. Active LOW logic design allows wired-OR connections for maximum flexibility.

	UC1526	UC2526	UC3526
Topology	Boost, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull	Boost, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull	Boost, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull
Control Method	Voltage Mode	Voltage Mode	Voltage Mode
Duty Cycle(Max)(%)	50	50	50
Frequency(Max)(kHz)	450	450	450
UVLO Thresholds On/Off(V)	7/6.8	7/6.8	7/6.8
Pin/Package	18CDIP, 20LCCC	18PDIP	18PDIP, 18SOIC
Regulated Outputs(#)	2	2	2
Operating Temperature Range(°C)	-55 to 125	-25 to 85	0 to 70
Rating	Military	Catalog	Catalog

UC3526 特性

• 8 To 35V Operation
• 5V Reference Trimmed To ±1%
• 1Hz To 400kHz Oscillator Range
• Dual 100mA Source/Sink Outputs
• Digital Current Limiting
• Double Pulse Suppression
• Programmable Deadtime
• Under-Voltage Lockout
• Single Pulse Metering
• Programmable Soft-Start
• Wide Current Limit Common Mode Range
• TTL/CMOS Compatible Logic Ports
• Symmetry Correction Capability
• Guaranteed 6 Unit Synchronization

UC3526 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
UC3526N	ACTIVE	-25 to 85	1.60 | 1ku	PDIP (N) | 18	20 | TUBE	UC3526N
UC3526NG4	ACTIVE	-25 to 85	1.60 | 1ku	PDIP (N) | 18	20 | TUBE	UC3526N

UC3526 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
UC3526N	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type		UC3526N
UC3526NG4	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type		UC3526NG4

UC3526 应用技术支持与电子电路设计开发资源下载

1. UC3526 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)

UC3526 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
UC3526 评估模块	UC3526EVM	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