UCC3813-1是TI公司的一款PWM与谐振控制器产品，UCC3813-1是低功耗经济型 BiCMOS 电流模式 PWM，本页介绍了UCC3813-1的产品说明、应用、特性等，并给出了与UCC3813-1相关的TI元器件型号供参考。
UCC3813-1 - 低功耗经济型 BiCMOS 电流模式 PWM - PWM与谐振控制器 - 离线隔离型DC/DC控制器和转换器 - TI公司（Texas Instruments，德州仪器）
The UCC3813-x family of high-speed, low-power integrated circuits contain all of the control and drive components required for off-line and DC-to-DC fixed-frequency current-mode switching power supplies with minimal parts count.
These devices have the same pin configuration as the UC384x family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.
The UCC3813-x family offers a variety of package options, temperature-range options, choice of maximum duty cycle, and choice of critical voltage levels. Lower reference parts such as the UCC3813-3 and UCC38135 fit best into battery operated systems, while the higher reference and the higher UVLO hysteresis of the UCC3813-2 and UCC3813-4 make these ideal choices for use in off-line power supplies.
The UCC2813-x series is specified for operation from –40°C to +85°C and the UCC3813-x series is specified for operation from 0°C to 70°C.
- 100-µA Typical Starting Supply Current
- 500-µA Typical Operating Supply Current
- Operation to 1 MHz
- Internal Soft Start
- Internal Fault Soft Start
- Internal Leading-Edge Blanking of the Current-Sense Signal
- 1-A Totem-Pole Output
- 70-ns Typical Response from Current-Sense to Gate-Drive Output
- 1.5% Tolerance Voltage Reference
- Same Pinout as UCC3802, UC3842, and UC3842A
