71M6521DEIM-DB Maxim Integrated Products, 71M6521DEIM-DB Datasheet - Page 44

• Manufacturer Part Number: 71M6521DEIM-DB
• Description: Power Management Modules & Development Tools 71M6521DE DEMO BOARD M6521DE DEMO BOARD
• Manufacturer: Maxim Integrated Products

Specifications of 71M6521DEIM-DB

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Note: The sleep mode does not require any support by MPU code. The mission mode is represented by the sum of the
other code features.
Revision 1.7
Creep mode
Zero accumulator
of CE
Current threshold
Voltage threshold
Brownout mode
LCD mode
Wake button
Wake timer
Feature
Feature
0.37KB
0.12KB
0.5KB
0.1KB
0.5KB
0.5KB
Code
Code
Size
Size
N/A
N/A
© Copyright 2005-2007 TERIDIAN Semiconductor Corporation
8KB
8KB
Y
Y
N
Y
Y
Y
Y
Y
16KB
16KB
Table 5-8: Operating Modes
Table 5-7: Creep Functions
Y
Y
Y
Y
Y
Y
Y
Y
TERIDIAN Proprietary
32KB
32KB
Feature
Y
Y
Y
Y
Y
Y
Y
Y
Description
Adjustable at calibration.
If abs(W) < Creep threshold, then creep mode.
The pulse accumulation register in the CE is cleared
to prevent spurious pulses from low current noise.
Adjustable at calibration.
Set If max(abs(IA 2 ), abs(IB 2 )) < Current threshold
then creep mode.
Current is calculated from RMS if possible, or, if
below 0.1A, from VA / V, where VA is calculated as
sqrt(Wh^2 + VARh^2)
For all elements.
Adjustable at calibration.
If max(abs(VA 2 ), abs(VB 2 )) < Volt threshold
inhibit frequency measurement, (frequency of zero)
Inhibit use of zero crossing counts, (main edge count
is zero), iInhibit voltage phase measurement (if any)
This feature is needed only if frequency or mains
edge count is present.
Description
Used to enter sleep and LCD modes. Command line
interface is available (32KB) when resetting into this
mode. Command prompt in this mode to be “B>”.
Is entered automatically when a sag event occurs.
Displays the Wh register, waits 7 sec using wakeup
timer, then initiates sleep mode.
When in sleep mode, enters LCD mode.
Used to exit the LCD mode, and enter sleep mode.
71M652X Software User’s Guide
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