ZD-00896 Rev. 5.2, 9-Apr-13

www.power-one.com

Page 8 of 36

9

Typical Application

The schematic of a typical application of a DM7300 digital power manager (DPM) is shown in Figure 3. The system

includes four groups of dPwer Point Of Load converters (POLs). A group is defined as one or more POL converters

interconnected via OK pins. Grouping of the POLs enables users to program advanced fault management schemes

and define margining functions, monitoring, startup behavior, and reporting conventions.

All dPwer POL converters are connected to the DPM and to each other via a single-wire synchronization/data (SD)

line. The line provides synchronization of all POL converters to the master clock generated by the DPM and

simultaneously carries bidirectional data transfer between POL converters and the DPM. The DPM communicates via

the I2C bus with the host system and/or the Graphical User Interface.

W

H

W

A

T

T

O

F

f

SCL

SDA