EV6906-S-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.

EV6906-S-00A Rev. 1.0

www.MonolithicPower.com

4

6/8/2015

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2015 MPS. All Rights Reserved.

QUICK START GUIDE

Using external power supply to power the SR IC

1. Connect the positive and negative terminals of the power supply to the VDD and PGND pins,

respectively.

2. Preset the power supply output 4.2V~35V, then turn off the power supply.

3. 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).

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

Q1 to work as an ideal diode.

Using drain of the MOSFET or system output to power the SR IC (without external power supply)

1. Connect the VDD terminal of the EVB to the Drain of the synchronous power MOSFET or system

output.

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. The IC will automatically startup and drive the synchronous MOSFET Q1 to work as an ideal diode.