Performance Summary; Quick Start Procedure - Analog Devices LINEAR DC2702A-A Demo Manual

DEMO MANUAL DC2702A-A

PERFORMANCE SUMMARY

PARAMETER
Input Voltage Range
Output Voltage, V
OUT0
Maximum Output Current, I
OUT0
Output Voltage, V
OUT1
Maximum Output Current, I
OUT1
Typical Efficiency
Default Switching Frequency

QUICK START PROCEDURE

MAXIMUM OUTPUT CURRENT
50A
100A
200A
300A
400A
Demonstration circuit 2702A-A is easy to set up to evalu-
ate the performance of the LTM4700EY. Refer to 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-16V) and GND (input return).
2. Connect the 1.0V output load between V
(Initial load: no load).
3. Connect the 1.5V output load between V
(Initial load: no load).
4. Connect the DVMs to the input and outputs. Set default
jumper position: JP1: ON; JP2: ON; JP3: ON.
5. Turn on the input power supply and check for the
proper output voltages. V
and V should be 1.5V ±0.5%.
OUT1
2
Specifications are at T
CONDITIONS
V = 4.5V to 16V, I = 0A to 50A
IN OUT0
V = 4.5V to 16V, V
IN OUT0
V = 4.5V to 16V, I = 0A to 50A
IN OUT1
V = 4.5V to 16V, V
IN OUT1
V = 12V, V = 1.0V, I
IN OUT0
V = 12V, V = 1.5V, I
IN OUT1
NUMBER OF OUPUTS
2
1
1
1
1
and GND
OUT0
and GND
OUT1
should be 1.0V ±0.5%,
OUT0
= 25°C
A
= 0.5V to 1.8V
= 0.5V to 1.8V
= 50A
OUT0
= 50A
OUT1
NUMBER OF LTM4700 µMODULE
REGULATORS ON THE BOARD
1
1
2
3
4
6. Once the proper output voltages are established, adjust
the loads within the operating range and observe the
output voltage regulation, ripple voltage and other
parameters.
7. Connect the dongle and control the output voltages
IN
from the GUI. See "LTpowerPlay GUI for the LTM4700
Quick Start Guide" for details.
Note: Internal bias circuit is enabled when V
JP3 is ON.
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.
VALUE
4.5V to 16V
0.5V to 1.8V, Default: 1.0V
50A
0.5V to 1.8V, Default: 1.5V
50A
88.7% (See Figure 5)
91.3% (See Figure 6)
500kHz
DEMO BOARD NUMBER
DC2702A-A
DC2702A-B
DC2784A-A
DC2784A-B
DC2784A-C
>7V and
IN
Rev 0