Performance Summary; Quick Start Procedure - Analog Devices DC2863A Demo Manual

DEMO MANUAL DC2863A

PERFORMANCE SUMMARY

PARAMETER
Input Voltage Range
Output Voltage, V
OUT
Maximum Output Current, I
OUT
Typical Efficiency
Default Switching Frequency

QUICK START PROCEDURE

Table 1. LTM4680 Demo Boards
MAXIMUM OUTPUT CURRENT
30A/30A
60A
Demonstration circuit 2863A is easy to set up to evalu-
ate the performance of the LTM4680. See Figure 2 for
the proper measurement equipment setup and follow the
procedure below.
1. With power off, connect the input power supply to V
(4.5V to 16V) and GND (input return).
2. Connect the 1V output load between V
(Initial load: no load).
3. Connect the DVMs to the input and output. Set default
jumper position:
JP1: RUN
4. Turn on the input power supply and check for the
proper output voltage. V
1.0V ±0.5%.
2
Specifications are at T
CONDITIONS
V = 4.5V to 16V, I
IN
V = 4.5V to 16V, V
IN
V = 12V, V
IN OUT
NUMBER OF OUTPUTS
2
1
and GND
OUT
ON
should be within
OUT
= 25°C
A
= 0A to 120A
OUT
= 0.5V to 3.3V
OUT
= 1.0V, I = 120A
OUT
NUMBER OF LTM4680 µModule
REGULATORS ON THE BOARD
1
1
5. Once the proper output voltage is established, adjust
the load within the operating range and observe
the output voltage regulation, ripple voltage and
other parameters.
6. Connect the dongle and control the output voltages
IN
from the GUI. Refer to the LTpowerPlay GUI for the
LTM4680 quick start guide for details.
NOTE: When measuring the output or input voltage rip-
ple, do not use the long ground lead on the oscilloscope
probe. See Figure 3 for the proper scope probe technique.
Short, stiff leads need to be soldered to the (+) and (–)
terminals of an output capacitor. The probe's ground ring
needs to touch the (–) lead and the probe tip needs to
touch the (+) lead.
MIN TYP MAX
4.5 16
0.5 1 3.3
120
87.2 (Figure 5)
500
DEMO BOARD NUMBER
DC2844A
DC2845A
UNITS
V
V
A
%
kHz
Rev. 0