CR6228 DIP-8L PWM controller

CR622X combines a dedicated current mode PWM controller with a high voltage power MOSFET.

It is noting but Green-Power Current Mode PWM Power Switch. It is optimized for high performance, low standby power, and cost effective off-line flyback converter applications in sub 24W range. CR6228 offers complete protection coverage with automatic self-recovery feature including Cycle-by-Cycle current limiting (OCP), over load protection (OLP), VDD over voltage clamp and under voltage lockout (UVLO). Excellent EMI performance is achieved with frequency shuffling technique together with soft switching control at he totem pole gate drive output. CR6228 is offered in DIP-8L package.

Feature of CR6228

• Power on Soft Start Reducing MOSFET Vds Stress

• Frequency shuffling for EMI

• Burst Mode Control For Improved Efficiency and Minimum Standby power Design

• Audio Noise Free Operation

• Normal 50 KHz Switching Frequency

• Internal Synchronized Slope Compensation

• Low VDD Startup Current and Low Operating Current

• Leading Edge Blanking on Current Sense Input

• Pb-Free SOP-8L& DIP-8L

• Good Protection Coverage With Auto Self-Recovery

                    - VDD Over Voltage Clamp and Under Voltage Lockout with Hysteresis (UVLO)

                   - Line Input Compensated Cycle-by-Cycle Over-current Threshold Setting For Constant Output Power Limiting Over                          Universal Input Voltage Range

                  - Overload Protection (OLP)

                  - Over Voltage Protection (OVP)

Applications of CR6228

• Battery Charger

• Digital Cameras and camcorder Adaptor

• VCR, SVR, STB, DVD & DVCD Player SMPS

• Set-Top Box (STB) Power

• Auxiliary Power Supply for PC and Server

• Open-frame SMPS