Manual

71M6541 Demo Board REV 3.0 User’s Manual
5 Rev 4.0
1 GETTING STARTED
1.1 GENERAL
The Maxim Integrated 71M6541-DB REV 3.0 Demo Board is a demonstration board for evaluating the 71M6541
device for single-phase electronic energy metering applications in conjunction with the Remote Sensor Inter-
face. It incorporates a 71M6541 integrated circuit, a 71M6601 Remote Interface IC, peripheral circuitry such as
a serial EEPROM, emulator port, and on-board power supply. A serial to USB converter allows communication
to a PC through a USB port. The Demo Board allows the evaluation of the 71M6541 energy meter chip for
measurement accuracy and overall system use.
The board is pre-programmed with a Demo Program (Demo Code) in the FLASH memory of the 71M6541F IC.
This embedded application is developed to exercise all low-level function calls to directly manage the periph-
erals, flash programming, and CPU (clock, timing, power savings, etc.).
The 71M6541F IC on the Demo Board is pre-programmed and pre-calibrated for the 50 µΩ or 120 µΩ shunt
shipped with the board. The Demo Board may also be used for operation with a CT after hardware modifica-
tions that can be easily performed by the user. This configuration will require a different version of the Demo
Code.
1.2 SAFETY AND ESD NOTES
Connecting live voltages to the demo board system will result in potentially hazardous voltages on the demo
board.
THE DEMO SYSTEM IS ESD SENSITIVE! ESD PRECAUTIONS SHOULD BE TAKEN
WHEN HANDLING THE DEMO BOARD!
EXTREME CAUTION SHOULD BE TAKEN WHEN HANDLING THE DEMO BOARD
ONCE IT IS CONNECTED TO LIVE VOLTAGES! BOARD GROUND IS CLOSE TO LIVE
VOLTAGE!
CAUTION: THE PHASE A CONNECTION OF THE DEMO BOARD IS CONNECTED TO
THE LIVE VOLTAGE SHUNT. THE NEUTRAL SHUNT IS ISOLATED VIA THE
71M6X0X REMOTE SENSOR INTERFACE AND CONNECTED TO THE PHASE B IN-
PUT. EXTREME CARE MUST BE TAKEN WHEN CHANGING SHUNT AND VOLTAGE
CONNECTIONS!
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