Working at an ESD workstation,
make sure that any wrist straps, bootstraps, or mats are connected referencing
the user to earth ground before power is applied to the EVM. An electrostatic
smock and safety glasses should also be worn.
Prior to connecting the DC input
source, VIN, it is advisable to limit the source current to 5.0 A maximum. Make
sure VIN is initially set to 0 V and connected as shown in Figure 5-2.
Connect an ammeter between the
positive output of the input supply and the positive input of the EVM (J2, Pin
1).
Connect voltmeter #1 to TP3 and
TP4. These are the EVM input supply monitoring points.
Connect LOAD1 to J5. Set LOAD1 to
constant current mode to sink 0 ADC before input voltage is
applied.
Connect voltmeter #2 across TP13
and TP14. This is the EVM output supply monitoring point. This configuration is
local sensing.
Remove the oscilloscope probe
jacket and position the probe as shown in Figure 5-1. TP17 and TP18 are implemented to provide the user with the means to achieve
good noise immune measurements of ripple voltage and transient response.
Figure 5-1 Probe Position for
Ripple Measurement
Place a fan as shown in Figure 5-2 and turn it on, making sure air is flowing across the EVM.