UC3526中文资料工作温度范围为 0°C 至 70°C 的 35V、双路 0.1A 400KHz PWM 控制器数据手册TI规格书

描述 Description

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. This versatile device can be used to implement single-ended or push-pull switching regulators of either polarity, both transformerless and transformer coupled. The UC1526 is characterized for operation over the full military temperature range of -55°C to +125°C. The UC2526 is characterized for operation from -25°C to +85°C, and the UC3526 is characterized for operation from 0° to +70°C.

特性 Features

• 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

简介

UC3526属于集成电路（IC）的PMIC-稳压器-DCDC开关式控制器。由TI制造生产的UC3526DC-DC 开关控制器PMIC（电源管理集成电路）DC 到 DC 开关式控制器是用于高效率电路的稳压 IC，其配置为生成高于（突升或步升）或低于（突降或步降）输入电源的输出电源电压。其他拓扑结构可能包括：降压-升压、反激、正激、Cuk、SEPIC、全桥、半桥和推挽式。这些器件不同于需要最小电压并“烧尽”多余电压的线性稳压器。