Quick Start Procedure - Linear Technology DC1207A Demo Manual

DEMO MANUAL DC1207A
DESCRIPTION
100
95
90
85
80
75
70
65
60
5 10 15
Figure 1. System Efficiency at f = 1MHz with All Channels
Sourcing 1A Current

QUICK START PROCEDURE

The demo circuit 1207A is easy to set up to evaluate the
performance of the LT3504. Refer to Figure 3 for proper
measurement equipment setup and follow the procedure
below:
NOTE: When measuring the input or output voltage ripple,
care must be taken to avoid a long ground lead on the
oscilloscope probe. Measure the input or output voltage
ripple by touching the probe tip directly across the VIN or
VOUT and GND terminals. See Figure 4 for proper scope
probe technique.
1. Place JP1-JP5 on ON position.
2. With power off, connect the input power supply to VIN
and GND.
2
20 25 30 35 40
V (V)
IN
Figure 2. Thermal Image at V
Channels Sourcing 1A Current
3. Turn on the power at the input.
NOTE: Make sure that the input voltage does not exceed 40V.
4. Check for the proper output voltages.
NOTE. If there is no output, temporarily disconnect the
load to make sure that the load is not set too high.
5. Once the proper output voltages are established, adjust
the load within the operating range and observe the
output voltage regulation, ripple voltage, efficiency and
other parameters
= 12V, f = 1MHz with All
IN
dc1207af