TPS92314是TI公司的一款LED照明-照明产品，TPS92314是具有 PFC 的 TPS92314 脱机初级侧感应转换器，本页介绍了TPS92314的产品说明、应用、特性等，并给出了与TPS92314相关的TI元器件型号供参考。
TPS92314 - 具有 PFC 的 TPS92314 脱机初级侧感应转换器 - LED照明-照明 - LED驱动器 - TI公司（Texas Instruments，德州仪器）
The TPS92314/14A is an off-line controller specifically designed to drive high power LEDs for lighting applications. Features include adaptive constant on-time control and quasi-resonant switching. Resonant switching allows for a reduced EMI signature and increased system efficiency. Thus, the device introduces a low external parts count and high level of integration. The control algorithm of TPS92314/14A adjusts the on time with reference to the primary side inductor peak current and secondary side inductor discharge time dynamically, the response time of which is set by an external capacitor.
The over current protection is implemented by a cycle by cycle current limit of the primary inductor current. TPS92314A has a higher OCP threshold which is more suitable for universal line application and TPS92314 can optimize the system cost. Other supervisory features of the TPS92314/14A include VCC over voltage protection and under-voltage lockout, output LEDs over-voltage protection and controller thermal shutdown. The TPS92314/14A is available in 8-pin SOIC package.
- Regulates LED Current Without Secondary Side Sensing
- Adaptive ON-time Control with Inherent PFC
- Critical-Conduction-Mode (CRM) with Zero-Current Detection (ZCD) for Valley Switching
- Programmable Switch Turn ON Delay
- Programmable Constant ON-Time (COT)
- Over Current Limit Options:
- TPS92314: 1.15V
- TPS92314A: 2.0V
- Advanced Over Current and Over Voltage Protection
- Internal Over-temperature Protection
- 8-Pin SOIC Package
