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CR6221 - Green-Power Current Mode PWM Power Switch

Download the CR6221 datasheet PDF. This datasheet also covers the CR6221_Chip variant, as both devices belong to the same green-power current mode pwm power switch family and are provided as variant models within a single manufacturer datasheet.

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.

Key Features

  • Soft Start CR622X features an internal 4 ms soft start to soften the electrical stress occurring in the power supply during startup. It is activated during the power on sequence. As soon as VDD reaches UVLO(OFF), the peak current is gradually increased from nearly zero to the maximum level. Every restart up is followed by a soft start. Frequency shuffling for EMI improvement The frequency shuffling (switching frequency modulation) is implemented in CR622X. The oscillation frequency is modulated.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (CR6221_Chip-Rail.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number CR6221
Manufacturer Chip-Rail
File Size 287.42 KB
Description Green-Power Current Mode PWM Power Switch
Datasheet download datasheet CR6221 Datasheet

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Other Datasheets by Chip-Rail

Part Number Description
CR6224 Green-Power Current Mode PWM Power Switch
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CR6229 Green-Power Current Mode PWM Power Switch
CR6245 High-precision CC/CV primary-side detection PWM switch
CR6247 High-precision CC/CV primary-side detection PWM switch

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
CR622X—CR6221/6224/6228/6229 Green-Power Current Mode PWM Power Switch Feature z z z z z z z z 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) Appli