Datasheet for the CR CR622X Green-Power Current Mode PWM Power Switch, a low power off-line SMPS switcher optimized for sub 24W flyback converter applications.
The CR CR622X is a low power off-line SMPS switcher optimized for off-line flyback converter applications in the sub 24W power range. It combines a dedicated current mode PWM controller with a high voltage power MOSFET. Key features include power-on soft start, frequency shuffling for EMI reduction, burst mode control for improved efficiency, and audio noise-free operation. The device offers comprehensive protection coverage with auto self-recovery, including cycle-by-cycle over-current limiting, overload protection, and over-voltage protection.
| Switching Frequency (Normal) | 50 KHz |
|---|---|
| Operation Current | 2 mA |
| UVLO (ON) Voltage | 8.5 V |
| UVLO (OFF) Voltage | 14.2 V |
| OVP (ON) Voltage | 27.0 V |
| VDD Clamp Voltage | 30 V |
| Drain Voltage (off state) | -0.3V to 650V |
| Operating Junction Temperature | -20℃ to 150℃ |
| Maximum Duty Cycle | 90 % |
| MOSFET Drain Source Breakdown Voltage | 620 V |
The normal switching frequency is internally fixed at 50 KHz.
The startup current is typically 3 uA to 20 uA when VDD is 14.1V.
The CR622X is offered in DIP-8L & SOP-8L packages.
The maximum practical continuous power for the CR6229T in an open frame design is 28W at 230VAC.