UC3526A中文资料工作温度范围为 0°C 至 70°C 的 35V、双路 0.2A 600KHz PWM 控制器数据手册TI规格书

描述 Description

The UC1526A Series are improved-performance pulse-width modulator circuits intended for direct replacement of equivalent non- \\x93A\\x94 versions in all applications. Higher frequency operation has been enhanced by several significant improvements including: a more accurate oscillator with less minimum dead time, reduced circuit delays (particularly in current limiting), and an improved output stage with negligible cross-conduction current. Additional improvements include the incorporation of a precision, band-gap reference generator, reduced overall supply current, and the addition of thermal shutdown protection. Along with these improvements, the UC1526A Series retains the protective features of under-voltage lockout, soft-start, digital current limiting, double pulse suppression logic, and adjustable deadtime. For ease of interfacing, all digital control ports are TTL compatible with active low logic. Five volt (5V) operation is possible for \\x93logic level\\x94 applications by connecting VIN, VC and VREF to a precision 5V input supply. Consult factory for additional information.

特性 Features

• Reduced Supply Current
• Oscillator Frequency to 600kHz
• Precision Band-Gap Reference
• 7 to 35V Operation
• Dual 200mA Source/Sink Outputs
• Minimum Output Cross-Conduction
• Double-Pulse Suppression Logic
• Under-Voltage Lockout
• Programmable Soft-Start
• Thermal Shutdown
• TTL/CMOS Compatible Logic Ports
• 5 Volt Operation (VIN = VC = VREF = 5.0V)

简介

UC3526A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UC3526ADC-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。