UC3825N  高速PWM控制器产品信息特性Compatible with Voltage or Current Mode TopologiesPractical Operation Switching Frequencies to 1MHz50ns Propagation Delay to OutputHigh Current Dual Totem Pole Outputs (1.5A Peak)Wide Bandwidth Error AmplifierFully Latched Logic with Double Pulse SuppressionPulse-by-Pulse Current LimitingSoft Start / Max. Duty Cycle ControlUnder-Voltage Lockout with HysteresisLow Start Up Current (1.1mA) 说明The UC1825 family of PWM control ICs is optimized for high frequency switched mode power supply applications. Particular care was given to minimizing propagation delays through the comparators and logic circuitry while maximizing bandwidth and slew rate of the error amplifier. This controller is designed for use in either current-mode or voltage mode systems with the capability for input voltage feed-forward.Protection circuitry includes a current limit comparator with a 1V threshold, a TTL compatible shutdown port, and a soft start pin which will double as a maximum duty cycle clamp. The logic is fully latched to provide jitter free operation and prohibit multiple pulses at an output. An under-voltage lockout section with 800mV of hysteresis assures low start up current.全新进口原包装,深圳现货供应!联系方式    陈伟雄 (销售部经理)电　　话：86 755 83643855移动电话：13590164498传　　真：86 755 83643855地　　址：中国广东 深圳市福田区 华强电子世界三号楼二楼2A207邮　　编：518000公司主页：http://www.htd-ic.com/