Quick Start Procedure - Linear Technology DC2016A Demo Manual

Quick start proceDure

To use DC2016A to evaluate the performance of the
LTM8054, refer to Figure 1 for the proper measurement
equipment setup, Figure 2 for the maximum output current
versus input voltage and then follow the procedure below:
NOTE: Do not hot-plug the V
ages. The absolute maximum voltage rating for V
LTM8054 is 40V and hot-plugging a power supply through
wire leads to the demonstration circuit can cause the voltage
on the extremely low ESR ceramic input capacitor to ring
to twice its DC value. In order to protect the LTM8054, an
aluminum electrolytic capacitor with higher ESR is placed
at the input terminals. This may protect against some, but
not all, input transients due to a hot-plugged power supply.
See Application Note 88 for more details.
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 to terminals across
terminal at high input volt-
IN
of the
IN
DEMO MANUAL DC2016A
the V or V capacitors. See Figure 3 for proper scope
IN OUT
probe technique. Solder terminals near the input or output
capacitors, if necessary.
1. Connect the RUN terminal to ground with a clip-on lead.
Connect the power supply (with power off), load, and
meters as shown in Figure 1.
2. After all connections are made, turn on the input power
and verify that the input voltage is between 6V and 35V
3. Remove the clip-on lead from RUN. Verify that V
12V.
NOTE: If V is too low, temporarily disconnect the load
OUT
to make sure that the load is not set too high.
Once the proper output voltage is established, adjust the
input voltage and load within the operating range and
observe the output voltage regulation, ripple voltage, ef-
ficiency and other parameters.
is
OUT
dc2016af
3