DESCRIPTION

· Highly integrated PWM controller for low-power SMPS.

· Proprietary green-mode function reduces switching frequency under light-load conditions.

· BiCMOS process enables low startup (9µA) and operating (3mA) currents.

· Built-in synchronized slope compensation ensures stability.

· Constant output power limit across 90V AC to 264V AC input range.

· Pulse-by-pulse current limiting for short-circuit protection.

· Output driver clamped at 17V to protect external MOSFET.

· Available in 8-pin DIP and 6-pin SSOT-6 packages.

FEATURES

· Green-Mode PWM supports "Blue Angel" standard.

· Low startup current: 9µA.

· Low operating current: 3mA.

· 300mA driving capability.

· Leading-edge blanking.

· Universal input support.

· Programmable PWM frequency with frequency hopping.

· VDD over-voltage protection with auto restart.

· Gate output voltage clamped at 17V.

· Few external components required.

APPLICATIONS

· General-purpose switching mode power supplies and flyback converters.

· Battery chargers for mobile devices and power tools.

· Power adapters for printers, gaming consoles, and portable audio players.

· Open-frame SMPS for TV/DVD standby and home appliances.

· Replacements for linear transformers and RCC SMPS.

· PC 5V standby power supplies.