Si8250/1/2 1）Single-Chip, Flash Digital Controller: Supports isolated and non-isolated applications Supports AC/DC, DC/DC and PFC applications Enables new system capabilities Adaptive dead-time control Nonlinear control response Efficiency optimization Adaptive timing control Self diagnostics/status reporting 2）Dedicated DSP-Based Loop Processor: Fixed 10 MHz update rate (independent of firmware) Differential input ADC Loop filter DSP engine PID + 2nd stage low-pass filter Selectable discrete time or SINC 2nd stage low-pass filter Highly flexible DPWM with up to 6 output phases Less than 5 ns dithered resolution Hardware pulse-by-pulse current limiting with programmable leading edge blanking Programmable hardware over-current protection 3）50 MIPS Flash System Management Processor: Up to 16, 32 K of Flash Flash can be used as EEPROM On-board 2% oscillator Self-sequencing, 8-channel 12-bit ADC  *Programmable safeguards (UVLO, OTP, OVP)  *Individual hardware limit detectors with vectored interrupts  *On-board temperature sensor and VREF High-speed, programmable general-purpose comparator PMBus hardware interface (SMBus) Enhanced UART for isolated control data link Four 16-bit timers 3-Channel PCA for timing or additional PWM outputs High-current, fully-programmable I/O port lines 4）Applications ◆ High-Performance Power Systems  Servers；  Telecom/datacom；  Medical equipment；  Industrial systems. ◆ Custom Power Supplies Telecommunication；  Industrial；  Medical；  Enterprise computing. 5）Operating Temperature:  125 °C Maximum 6）Packages:  5 x 5 mm 28QFN  32LQFP Lacewood公司: 　　 为一专业之IC元器件代理及销售公司。公司成立于1992年，迄今已有23年之IC 器件产品代理经验。代理产品有20多个品牌。产品范围涵盖电脑及周边相关领域，通讯产品领域，消费性产品及家用电器等。服务网络包括台湾、香港、深圳、上海、北京、韩国、日本等地。 　　 联系方式： 　　电话：83562772-219 李贵平（先生） 　　传真: 83307119 　　网址：www.maxtek-icrep.com.tw 　　 在线交流： 　　MSN:guiping_7812@hotmail.com 　　Q Q:9517879