EVAL-ADM1073MEB Analog Devices Inc, EVAL-ADM1073MEB Datasheet - Page 10

• Manufacturer Part Number: EVAL-ADM1073MEB
• Description: BOARD EVAL MICRO FOR ADM1073
• Manufacturer: Analog Devices Inc

Specifications of EVAL-ADM1073MEB

• Main Purpose: Power Management, Hot Swap Controller
• Utilized Ic / Part: ADM1073
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -

EVAL-ADM1073EB
SETTING UP THE MAIN EVALUATION BOARD
The evaluation board can have different configurations of
supply voltage, operating range, maximum allowable load
current, and timing values.
To set up the main evaluation board:
1.
2.
Choose a shunt resistor. A constant voltage of 12.3 V
(above V
resistor. A shorting link in Header L2 selects the standard
R
can be selected via header L1. The V
monitored via Connector J5.
Choose values for Resistors R1 to R4 to suit the desired
operating voltage range and hysteresis levels. The default
resistors values (R1/R3 = 39 kΩ, R2/R4 = 1 kΩ) give an
operating range of ~34.5 V to ~78 V with hysteresis levels
of ~200 mV on UV and OV. You can also use a 3-resistor
string (R5 to R7) to set these parameters. Use Switch S4 to
apply the preferred network. See the ADM1073 data sheet
for other resistor ratios and their operating ranges. Note
that 1% accurate resistors should be used for accuracy.
P1–10
P1–12
P1–11
P1–1
P1–2
P1–3
P1–4
P1–5
P1–6
P1–7
P1–8
P1–9
DROP
of 20 kΩ. Other resistors and resistor combinations
EE
) is generated at the V
Figure 7. Diagram of Backplane Board
IN
pin via the shunt
IN
voltage can be
BANANA
BANANA
J1
J2
Rev. 0 | Page 10 of 20
3.
4.
5.
6.
7.
Choose the maximum load current that is permitted before
the ADM1073 registers a current fault. This is determined
by the choice of sense resistor, R
board has a 33 mΩ sense resistor by default, which sets up
a maximum inrush current level of 3.12 A and maximum
load current level of 2.61 A. R
the load current level (see the ADM1073 datasheet for
details). Note that 1% accurate resistors should be used for
accuracy.
Choose a value for the soft start capacitor, C
tor is connected between the SS pin and V
soft start current profile at initial connection. You can
switch in different capacitor values via Switch S8 on the
evaluation board. See the ADM1073 datasheet for details.
Choose values for the TIMER capacitor, C
TIMER resistor, R
of the limited consecutive retry scheme. You can switch in
different capacitor and resistor values via Switch S6 on the
evaluation board. See the ADM1073 datasheet for details.
Choose the value of the drain resistor required for linear
limit foldback via a shorting link in Header L4. The default
value of 2.2 MΩ is selected by a shorting link in Header L4,
Position B.
The evaluation board has an IRF3910 DPAK FET mounted
by default. If you want to change this FET, remove the
component Q1, and mount a replacement. Note that a
triple footprint is present that can accommodate DPAK,
D2PAK, and many through-hole FET packages.
TIMER
. These components set the on-time
SENSE
SENSE
can be changed to alter
(R6). The evaluation
EE
TIMER
. It adjusts the
SS
. This capaci-
, and the