STR-ACF-12V100WPSU-GEVB: 12V @ 8.5A, 90 ~ 264V in

STR-ACF-12V100WPSU-GEVB provides an easy to use evaluation board within Strata development environment for the NCP1568 100W output AC to DC conversion. Through Strata, the developer can access datasheets, BOMs, schematics, and other collateral they may need. This document will provide instructions on how to use the evaluation board.

• Input voltage range; 90Vac ~ 264Vac

• Output voltage; 12V

• Output current; 0A – 8.5A

• Input / Output isolation; 3kV

• PFC; Yes

• Board size; 166mm x 103mm x 33mm

Detailed Features:

High performance AC/DC psu solution using NCP1622, NCP1568, NCP4306 and NCP431.

• Input voltage 90 ~ 264Vac

• Output voltage 12V, Output current 0 ~ 8.5A, Maximum of continuous Pout = 102W is available.

• Efficiency of maximum load > 86%

• Included 6 pin PFC controller. This runs approximately Pout >50W and disabled Pout <50W for power saving.

• An inrush current control component is included. It is 10 ohm NTH thermistor.

• Latched overvoltage detection

• Auto restart for overcurrent protection and input voltage compensation.

Display the performance of this PSU on a screen by a simple telemetering system and Strata.

• Input and output monitoring voltage, current, power factor and power.

• Calculate a power loss and efficiency

The 6 pin PFC controller NCP1622 . This is based on an innovative VSFF method

• CrM operation.

• Valley Synchronized Frequency Fold−back (VSFF): Low frequency operation is forced at low current levels (9 pre programmed).

The NCP1568 which is an Active Clamp Fly back controller is used to the downstream converter.

• Peak Current−Mode control with inbuilt slope compensation with options.

• Customer Programmable Optional Transition to DCM (light load operation).

SR controller NCP4306 for increased efficiency, utilizes Kelvin connection to SR MOS at full load and utilizes a light load detection architecture at light load.

• Light load detection for disabling SR operation at light load to no load.

Shunt regulator NCP431 for output voltage detection works low operating current and offers low consumption.