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SIC6622BS

Features
 Built-in 850V BJT
 Quasi-Resonant Primary Side Regulation (QR-PSR)
 Control with High Efficiency
 Standby power<70mw

General Description
The SIC6622BS is a high performance AC/DC power supply controller for battery charger and
adapter applications. The SIC6622BS uses Pulse Frequency Modulation (PFM) method to build
discontinuous conduction mode (DCM) fly-back power supplies.

The SIC6622BS provides accurate constant voltage, constant current (CV/CC) regulation without
requiring an opto-coupler and the secondary control circuitry.The SIC6622BS can achieve
excellent regulation and high average efficiency, meet Energy star level 6.0.

The SIC6622BS has a proprietary cable voltage drop compensation function. Internal random
frequency modulation to reduce system EMI.

The SIC6622BS integrates functions and protections of Under Voltage Lockout (UVLO), VDD
over Voltage Protection (VDD OVP), Cycle-by-cycle Current Limiting (OCP), Short Load
Protection (SLP), On-Chip Thermal Shutdown, VDD Clamping, etc

The SIC6622BS is available in SOP-7 package.

Features
 Built-in 850V BJT
 Quasi-Resonant Primary Side Regulation (QR-PSR)
    Control with High Efficiency
 Standby power<70mw
 Low stat-up current <1uA
 High efficiency(Meet Energy Star 6.0)
 Multi-Mode PSR Control
 Fast Dynamic Response
 Built-in Dynamic Base Drive
 Audio Noise Free Operation
 ±5% CC and CV Regulation
 Programmable Cable Drop Compensation (CDC) in
    CV Mode
 Built-in AC Line & Load CC Compensation
 Build in Protections:
 Short Load Protection (SLP)
 Cycle-by-Cycle Current Limiting (OCP)
 Leading Edge Blanking (LEB)
 On-Chip Thermal Shutdown (OTP)
 VDD OVP & UVP & Clamp
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