EVAL-ADM1276EBZ Analog Devices, EVAL-ADM1276EBZ Datasheet - Page 31
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EVAL-ADM1276EBZ
Manufacturer Part Number
EVAL-ADM1276EBZ
Description
Power Management IC Development Tools EVALUATION BOARD
Manufacturer
Analog Devices
Type
Hot Swap & Power Distributionr
Series
ADM1276r
Datasheet
1.EVAL-ADM1276EBZ.pdf
(48 pages)
Specifications of EVAL-ADM1276EBZ
Rohs
yes
Tool Is For Evaluation Of
ADM1276
Input Voltage
20 V
Factory Pack Quantity
1
Data Sheet
Example 3: The PIN_OP_WARN_LIMIT command requires a
power limit value expressed in direct format.
If the required power limit is 350 W and the sense resistor is
1 mΩ, the first step is to determine the m coefficient. Assuming
the 0 V to 20 V range, m = 6043 × 1, which is 6043.
Table 7. PMBus Conversion to Real-World Coefficients
Coefficient
m
b
R
format values must be divided by 256 prior to being
converted with the coefficients shown in Table 7.
Current (A)
807 × R
20,475
−1
SENSE
0 V to 6 V Range
6720
0
−1
Voltage (V)
Rev. B | Page 31 of 48
0 V to 20 V Range
19,199
0
−2
Using Equation 1, and working with the 0 V to 20 V range,
Writing a value of 21,151 with the PIN_OP_WARN_LIMIT
command sets an overpower warning at 350 W.
Y = ((6043 × 350) × 10
Y = 21,150.5 = 21,151 (rounded up to integer form)
0 V to 6 V Range
2115 × R
0
−1
SENSE
-2
Power (W)
0
0 V to 20 V Range
6043 × R
−2
SENSE
ADM1276