410-265 Digilent

1300 Henley Court Pullman, WA 99163 509.334.6306 www.digilentinc.com PmodPMON1 Reference Manual Revised May 26, 2016 This manual applies to the PmodPMON1 rev. B Overview The PmodPMON1 employs the Analog Devices AD5112 and ADM1191 to create a system power monitor. Features include: Monitor current draw less than 1.058 A Wide range of configurable alert conditions Monitor voltages from 3.16 V to 26 V Configurable device address for up to nine modules in a single system Small PCB size for flexible designs 1.2 0.8 (2.8 cm 2.0 cm) 24-pin connector with I2C interface Follows Digilent Pmod Interface Specification The PmodPMON1. 1 Functional Description 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. 2 Using Multiple PmodPMON1s 2 In order to use multiple PMON1s on a single I C 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.) Copyright Digilent, Inc. All rights reserved. DOC : 502-265 Page 1 of 2 Other product and company names mentioned may be trademarks of their respective owners. PmodPMON1 Manual 3 Device Configuration For specific information related to device configuration on the AD5112 and ADM1191, please refer to the data sheets available at www.analog.com Connector J1 Control Pins Pin Signal Description 1,2 CONV Trigger a conversion Overcurrent or overvoltage 3,4 ALERT event Connector J2 I2C Interface 1,2 SCL Serial Clock 3,4 SDA Serial Data 5,6 GND Ground 7,8 DVDD Input Voltage Connector J3 Power Monitor Screw Terminal Input voltage of device to 1 VIN monitored 2 GND Ground Voltage supplied to device 3 VOUT being monitored Table 1. Connector descriptions. Jumper Setting Description ADM1191 Address bit 3 1 and 2 set to 0b00 ADM1191 Address bit 3 JP1 3 and 2 set to 0b01 ADM1191 Address bit 3 OFF and 2 set to 0b10 ADM1191 Address bit 1 1 and 0 set to 0b00 ADM1191 Address bit 1 JP2 3 and 0 set to 0b01 ADM1191 Address bit 1 OFF and 0 set to 0b10 Table 2. Jumper descriptions. Copyright Digilent, Inc. All rights reserved. Page 2 of 2 Other product and company names mentioned may be trademarks of their respective owners.