LOW-COST POWER-SAVING MODE PWM CONTROLLER FOR FLYBACK CONVERTERS
UTC - UC3800_B

We at Millennium have complete solution for power saving mode PWN Controller for flyback convertors. Our solutions are low-cost and efficient. 

The UTC UC3800/B is a high-performance current mode PWM controller ideally suited for low standby power. High voltage start-up is implemented in UTC UC3800/B, which features with short start-up time and no standby current. At no load condition, the IC operates in power-saving mode for lower standby power, decreasing frequency for higher conversion efficiency at light load condition.

APPLICATIONS
  • Water Purifier
  • Laptop Charger
  • Power Adaptor
  • Set-top Box Power Supplies
  • Ink Jet Printers
  • Open-frame SMPS

Electrical parameters

Range

Electrical parameters

Range

Input Specifications: -

 

Output Specifications: -

 

Input Voltage Range (V AC)

130V-300

 No Load Voltage (V DC)

25

System Power (W)

70

Load Voltage (V DC)

24

Input Current (mA)

300

Load Current (A)

2.5

Stand by power at no load ( mW)

< 150

Output Wattage (W)

60

 

 

Ripple (%)

<15

 

 

Driver Efficiency (%)

>85

 

 

Protections

Short circuit, Over temperature, Over load, Input OVP




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