Datasheet > PMODPMON1

PMODPMON1

更新时间： 2024-11-25 12:46:51

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PmodPMON1â¢ Refference Manuall

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PMODPMON1 数据手册

PmodPMON1™

Reference Manual

Revision: January 27, 2013

1300 NE Henley Court, Suite 3

Pullman, WA 99163

(509) 334 6306 Voice | (509) 334 6300 Fax

Note: This document applies to REV B of the board.

Overview

The PmodPMON1 employs the Analog

Devices^®AD5112 and ADM1191 to create a

system power monitor.

Features include:

•

monitor current draws less than 1.058A

monitor voltages from 3.16V to 26V on

the J3 VIN pin

•

DVDD input ranges from 3V to 5.5V

standard I²C interface

configurable device address allows for

up to nine PMON1s in a single system

Device Configuration

Functional Description

For specific information related to device

configuration on the AD5112 and ADM1191,

please refer to the data sheets available at

www.analog.com

Customers can configure the PMON1 to a wide

range of possible alert conditions from the

ADM1191 by using the configurable AD5112

potentiometer. The AD5112 upper

potentiometer connection ties to DVDD

through a filtering ferrite bead and the lower

connection connects to GND. (See Table 1 for

Connector Descriptions.) The wiper directly

connects to the SETV pin on the ADM1191 to

allow for the wide range of alert conditions. If

an alert condition occurs, LD1 on the PMON1

will illuminate and the alert pin will go to a logic

low state.

Connector J1 – Control Pins

Description

1,2

Signal

CONV

Trigger a conversion

Overcurrent or

overvoltage event

3,4

ALERT

Connector J2 – I2C Interface

1,2

3,4

5,6

7,8

SCL

SDA

GND

DVDD

Serial Clock

Serial Data

Ground

Input Voltage

Using Multiple PMON1’s

Connector J3 – Power Monitor Screw

Terminal

Input voltage of device to

In order to use multiple PMON1’s on a single

I²C bus, each individual PMON1 will need to be

connected; and the desired potentiometer

value programmed into the EEPROM on the

AD5112. Any stored value will become the

default starting value for the potentiometer.

The alert functionality available on the

ADM1191 will not function properly without

programming each individual device. (See

Table 2 for Jumper Descriptions.)

VIN

monitored

Ground

GND

Voltage supplied to

device being monitored

VOUT

Table 1. Connector Descriptions

Doc: 502-265

page 1 of 2

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