SG5701DY

NOT RECOMMENDED FOR NEW DESIGNS SG5701 — Low Cost, Green-Mode PWM Controller for Flyback Converters SG5701 Low-Cost, Green-Mode PWM Controller for Flyback Converters Features  Green-Mode PWM Controller  Supports the “Blue Angel” Standard  Low Startup Current: 10 μA  Low Operating Current: 2 mA  Programmable PWM Frequency  Leading-Edge Blanking  Built-in Synchronized Slope Compensation  Cycle-by-Cycle Current Limiting  Constant Output Power Limit  Current Mode Operation  Under-Voltage Lockout (UVLO)  Universal Input  Gate Output Voltage Clamped at 17 V  Low Cost  Few External Components Required  Small SSOT-6 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 auxiliary supplies, home appliances, and consumer electronics  Replacements for linear transformers and RCC SMPS  PC 5 V standby power Ordering Information 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 greenmode function provides off-time modulation to continuously decrease the switching frequency under light-load conditions. This green-mode function enables the power ...