Analog Devices DC2881A-A, Руководство пользователя

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DEMO MANUAL DC2881A-A
Rev. 0
the load current step. The maximum load current step
achievable is typically 25A. The dynamic circuit MOSFET
is off when EXT PULSE is floating or grounded. Apply
around 30mV of initial value to EXT PULSE to make the
MOSFET open before the pulse, so that the slew rate of
load current will follow the slew rate of EXT PULSE lin-
early. Refer to the table in the schematic file to optimally
route the voltage sense points during load transient test. It
is highly recommended to monitor the load voltage using
JP21, which is Kelvin connected to C227.
OUTPUT AND ONBOARD E-LOAD CONFIGURATION
Figure 2. Proper Measurement Equipment Setup
Figure 3. Measuring Output Voltage Ripple
+ –
V
OUT
GND
C
OUT
+
–
V
IN
I
IN
POWER
SUPPLY
+
+
–
–
+
–
V
OUT2
LOAD2
I
OUT2
+
–
+
–
+
–
+
–
V
OUT1
I
OUT1
+
–
LOAD1
dc2881a-a F02