EV6903DS-00A – HIGH EFFICIENCY SYNCHRONOUS RECTIFICATION EV BOARD

NOTICE:

The information in this document is subject to change without notice. Users should warrant and guarantee that third

party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not

assume any legal responsibility for any said applications.

EV6903DS-00A Rev. 1.0

www.MonolithicPower.com

4

10/19/2011

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2011 MPS. All Rights Reserved.

QUICK START GUIDE

1. Connect the positive and negative terminals of the output or the auxiliary winding to the VDD and

VSS pins, respectively.

2. Connect the Drain and Source and Gate terminals of the synchronous power MOSFET to the VD

and VS and VG pins, respectively (There is already a 100V power MOSFET Q1 connected on the

board, if the customer do not want to use this MOS as synchronous MOSFET, you can remove this

Q1 and use your own MOSFET instead).

3. Preset the input voltage of flyback converter to the normal input range, and then turn off the power

supply.

4. Turn the power supply on. The IC will automatically startup and drive the synchronous MOSFET Q1

to work as an ideal diode.