外置 MOS 六级能效的电源 IC

型号： SF6771

FEATURES

l Easily Meet EPS Level 6

l Proprietary super-QR/PSR (Quasi-Resonant &Primary Side Regulation) Cotrol for High Efficiency and Low EMI

l Support “No-Snubber & “ No-Y” Design in 5W (5V/1A) Charger Applicattions

l Less than 70mW Standby Power

l ±5% CC and CV Precision

l Proprietary Cable Drop Compensation

l Cycle-by-Cycle Current limiting

l Built-in leading edge Blanking(LEB)

l Pin Floating Protection

l Built-in Soft Start

l Output Over Voltage Protection

l VDD OVP & Clamp

l VDD Under Voltage Lockout( UVLO)

APPLICATIONS

Battery chargers for cellular phones,cordless phones ,PDA,digital cameras,etc

Replaces linear transformer and RCC SMPS

AC/CD LED lighting

GENERAL DESCIRIPTION

SF6771 is a high performance,highly integrate QR(Quasi Resonant Mode) and primary Side Regulation (PSR)controller for offline small power converter applications.

SF6771 has proprietary super-QR/PSR control for high efficieny and low EMI .The IC can meet EPS Level 6 enger standard easily .The IC can support “No-snubber & No-Y” design in 5W charger applications.The IC also has built-in cable drop compasation function,which can provide excellent CV performance

SF6771 integrates functions and protections of Under Voltage Lockout (UVLO), VDD Over Voltage Protection ( VDD OVP), Output Over Voltage Protection (Output OVP), Soft Start, cycle-by-cycle Current Limiting (OCP), pins Floating Protection, Gate Clamping, VDD Clamping.

SF6771 is available in SOT23-6 packages.

TIPPICAL APPLYCATION

Ordering Information