●DESCRIPTION
●This highly-integrated PWM controller provides several special enhancements designed to meet the low standby-power needs of low-power SMPS. To minimize standby power consumption, the proprietary green-mode function provides off-time modulation to linearly decrease the switching frequency under light-load conditions. This green-mode function enables the power supply to easily meet even the strictest power conservation requirements.
●FEATURES
●Green-Mode PWM
●Supports the “Blue Angel” Standard
●Low Start-up Current (5uA)
●Low Operating Current (2mA)
●Leading-Edge Blanking
●Constant Output Power Limit
●Universal Input
●Built-in Synchronized Slope Compensation
●Current Mode Operation
●Cycle-by-cycle Current Limiting
●Under Voltage Lockout (UVLO)
●Programmable PWM Frequency
●Gate Output Voltage Clamped at 15V
●Low Cost
●Few External Components Required
●Small SOT-26 Package
●APPLICATIONS
●General-purpose switching mode power supplies and flyback power converters, such as
●Battery chargers for cellular phones, cordless phones, PDAs, digital cameras, and power tools
●Power adapters for ink jet printers, video game consoles, and portable audio players
●Open-frame SMPS for TV/DVD standby and other auxiliary supplies, home appliances, and consumer electronics
●Replacements for linear transformers and RCC SMPS
●PC 5V standby power.
