Quick Start Procedure - Analog Devices Linear ADI Power DC2798A Demo Manual

DEMO MANUAL DC2798A
PERFORMANCE SUMMARY
PARAMETER
Input Voltage Range
Output Voltage, V
OUT
Maximum Output Current, I
OUT
Typical Efficiency
Default Switching Frequency

QUICK START PROCEDURE

Demonstration circuit DC2798A is easy to set up to evalu-
ate the performance of the LTC7841. Refer to Figure 2 for
the proper measurement equipment set-up and follow the
procedure below.
1. With power off, connect the input power supply to V
(10V to 16V) and GND (input return).
2. Connect the 48V output load between V
(Initial load: No Load).
3. Connect the DVMs to the input and outputs. Set default
jumper position: JP1: 100mV (ILIM); JP2: FLOAT; JP3:
CCM; JP4: ON.
4. Connect the dongle to DC2798A and turn on the input
power supply.
2
Specifications are at T
CONDITIONS
V = 10V to 16V, I = 0A to 10A
IN OUT
V = 10V to 16V, V = 16V to 48V
IN OUT
V =12V, V = 48V, I = 10A
IN OUT OUT
5. Follow the LTpowerPlay Quick Start Procedure section
6. Once the proper output voltages are established,
IN
and GND NOTE: When measuring the output or input voltage rip-
OUT0
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.
Figure 2. Proper Measurement Equipment Set-Up
= 25°C
A
MIN
10
16
97.4 (See Figure 5)
to set the proper output voltage.
adjust the loads within the operating range and ob-
serve the output voltage regulation, ripple voltage and
other parameters.
TYP MAX UNITS
16
48 (Default)
10
%
150 kHz
Rev. 0
V
V
A