Electrical
40 613768
Parameter Description
RL_low = 511 Ohms 1% for 1V @ 200% loading
CL_low = 1800pF, 5% for 1V @ 200% loading
RL_high = 1.65K ohm 1% for 3.3V @200% loading
CL_high = 560 pF, 5% for 3.3V @200% loading
Accuracy I_PSU%
≤5% @ 121% to 200% of Rated Power
≤2.5% @ 80% to 120% of Rated Power
≤10% @ 40% to 79% of Rated Power
≤20% @ 20% to 39% of Rated Power
Accuracy needs to be tuned to be best @ 100% load.
I_PSU% Delay Time
<100 uSec (Required)
<60 uSec (Recommended)
Testing Condition: step size is from 30% of rated power
to 120% of rated power, See Figure 4-6
I_PSU% Ripple/Noise
Measured @ 100% load,
Required <10% of full-scale voltage
Recommended <7% of full-scale voltage
Note: The Spec allows that based on current mode reporting 200% of the power supplies
rated capacity is possible for the system to read. There is not a requirement for the
power supply to deliver up to 200% of rated capacity outside of Power Excursion
requirements. Refer to Table 4-12
for peak power requirements.
I_PSU% Delay time is defined as the amount of time between when a current change
happens and when the I_PSU% signal from the PSU reports that change to the
system. This Delay time is measured when the current change reaches the 90% level
of the new current value to when the I_PSU% signal reaches 90% level reporting the
% of total output. Testing needs to happen with the DC Load Slew Rate set to at least
5A/uS. Test condition is when the current increases from 30% to 120% of the rated
PSU size. This is similar to the DC Output Transient Step size in Table 4-3
. During
testing of all I_PSU% testing conditions (Accuracy, Delay Time, and Ripple/Noise) the
capacitive load described in
Table 4-7 is applied to these tests.
To Next Page
Loading...
Need help?
General
