器件名称:
CS1500
功能描述:
Digital Power Factor Correction IC
文件大小:
1058.31KB 共22页
简 介:
Jul ?$shortyear> CONFIDENTIAL CS1500 Digital Power Factor Correction IC Features & Description Digital EMI Noise Shaping Excellent Efficiency Under All Load Conditions Minimal External Devices Required Optimized Digital Loop Compensation Comprehensive Safety Features Undervoltage Lockout (UVLO) Output Overvoltage Protection Input Current Limiting Output Overpower Protection Input Brownout Protection Open/short Loop Protection for IAC & FB Pins Thermal Shutdown Description The CS1500 is a high-performance power factor correction (PFC) controller for universal AC input, which uses a proprietary digital algorithm for discontinuous conduction mode (DCM) with variable on-time and variable frequency control, ensuring unity power factor. The CS1500 incorporates all the safety features necessary for robust and compact PFC stages. In addition, it has burst mode control to lower the light-load/standby losses to a minimum. Protection features such as overvoltage, overcurrent, overpower, open- and short-circuit protection, overtemperature, and brownout help protect the device during abnormal transient conditions. The digital controller optimizes the system stability and transient performance, simplifies the PFC design, reduces the external component count and BOM costs. The simple design and minimum cost makes CS1500 the ideal choice for PFC up to 300 watts. Pin Assignments NC STBY IAC FB 1 2 3 4 8 7 6 5 NC VDD GD GND 8-lead SOIC D1 D2 LB R AC R1a R1 b BR1 C1 8 4 2 6 R3……
