UC2525A - 稳压脉宽调制器

UC2525A是TI德州仪器公司的一款PWM与谐振控制器产品，UC2525A是稳压脉宽调制器，本站介绍了UC2525A的封装应用图解、特点和优点、功能等，并给出了与UC2525A相关的TI元器件型号供参考。

UC2525A - 稳压脉宽调制器 - PWM与谐振控制器 - 离线隔离型DC/DC控制器和转换器 - 德州仪器

产品描述

The UC1525A/1527A series of pulse width modulator integrated circuits are designed to offer improved performance and lowered external parts count when used in designing all types of switching power supplies. The on-chip +5.1-V reference is trimmed to ±1% and the input common-mode range of the error amplifier includes the reference voltage, eliminating external resistors. A sync input to the oscillator allows multiple units to be slaved or a single unit to be synchronized to an external system clock. A single resistor between the CT and the discharge terminals provides a wide range of dead-time adjustment. These devices also feature built-in soft-start circuitry with only an external timing capacitor required. A shutdown terminal controls both the soft-start circuitry and the output stages, providing instantaneous turn off through the PWM latch with pulsed shutdown, as well as soft-start recycle with longer shutdown commands.

产品特性

8-V to 35-V Operation
5.1-V Reference Trimmed to ±1%
100-Hz to 500-kHz Oscillator Range
Separate Oscillator Sync Terminal
Adjustable Deadtime Control
Internal Soft-Start
Pulse-by-Pulse Shutdown
Input Undervoltage Lockout With Hysteresis
Latching PWM to Prevent Multiple Pulses
Dual Source/Sink Output Drivers

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