CR6224T Datasheet – Current Mode PWM Power Switch

Part Number : CR6224T

Function : (CR6221 – CR6229) Green-Power Current Mode PWM Power Switch

Manufactures : Chip-Rail

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Description :

CR622X—CR6221/6224/6228/6229 Green-Power Current Mode PWM Power Switch Feature 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 z z Pb-Free SOP-8L& DIP-8L Good Protection Coverage With Auto Self-Recovery ¾ VDD Over Voltage Clamp and Under Voltage Lockout with Hysteresis (UVLO) ¾ Line Input Compensated Cycle-by-Cycle Over-current Threshold Setting For Constant Output Power Limiting Over Universal Input Voltage Range ¾ Overload Protection (OLP) ¾ Over Voltage Protection (OVP) Applications z z z Battery Charger Digital Cameras and camcorder Adaptor VCR, SVR, STB, DVD & DVCD Player SMPS z z z Set-Top Box (STB) Power Auxiliary Power Supply for PC and Server Open-frame SMPS General Description CR622X combines a dedicated current mode PWM controller with a high voltage power MOSFET. It is optimized for high performance, low standby power, and cost effective off-line flyback converter applications in sub 24W range. CR622X 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. CR622X is offered in DIP-8L & SOP-8L package. Nov, 2009 V2.2 1/10 Free Datasheet CR622X Green-Power Current Mode PWM Power Switch Pin Assignment (DIP-8L & SOP-8L) Pin Descriptions Pin Name GND FB VDD-G SENSE VDD Drain Description Ground Feedback input pin. The PWM duty cycle is determined by voltage level into this pin and the current-sense signal at Pin 4. Internal Gate Driver Power Supply Current sense input IC DC power supply Input HV MOSFET Drain Pin. The Drain pin is connected to the primary lead of the transformer. TYPICAL APPLICATION Nov, 2009 V2.2 2/10 Free Datasheet http:/// CR622X Green-Power Current Mode PWM Power Switch Block Diagram Simplified Internal Circuit Architecture Absolute Maximum Ratings Parameter Drain Voltage (off state) VDD Voltage VDD-G Input Voltage VDD Clamp Continuous Current FB Input Voltage Sense Input Voltage Min/Max Operating junction Temperature TJ Min/Max Storage Temperature Tstg Lead Temperature (Soldering, 10secs) Value -0.3V to 650V -0.3V to 30V -0.3V to 30V 10 mA -0.3V to 7V -0.3V to 7V -20℃ to 150℃ -55℃ to 160℃ 260℃ Note: Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. Exposure to absolute maximum-rated conditions for extended periods may affect device reliability. Output Power Table Package 230 […]

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CR6224T Datasheet

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