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Description

CR522X, CR5228 is a built-in electric high voltage power MOSFET Flow mode flyback PWM control chip for less than 18W Offline flyback switching power supply with high performance, low standby Power, low cost advantages.

Features : 

1. Built-in 650V power switch MOSFET (CR5224 built-in 630V MOSFET)

2. Over-temperature protection function Low starting current: 3uA (Typ) Low working current: 2mA (Typ)

3. Built-in soft start to reduce MOSFET stress

4. Built-in frequency jitter to improve EMI characteristics

5. Built-in ramp compensation circuit 50KHz switching frequency

6. Hiccup Mode & PFM working mode designed to improve efficiency and minimize standby power consumption

7. VDD under-voltage protection (UVLO), over-voltage protection (OVP) and VDD voltage clamping function, OLP and other self-recovery protection 

Application Circuits : 

* CR5223 built-in 630V MOSFET

* CR5224 built-in 630V MOSFET

* CR5228 built-in 650V MOSFET
 
* CR5229 built-in 650V MOSFET