DS031 Datasheet, PDF (51/318 Pages) Xilinx, Inc – Summary of Features

R
Virtex-II Platform FPGAs: DC and Switching Characteristics
Table 4: Quiescent Supply Current
Symbol
Description
Device
Min
Typical
Max
Units
I_CCINTQ Quiescent V_CCINT supply current
XC2V40
XC2V80
XC2V250
XC2V500
XC2V1000
XC2V1500
XC2V2000
XC2V3000
XC2V4000
XC2V6000
XC2V8000
3
125
5
125
8
150
10
200
12
250
15
350
mA
20
400
27
500
35
650
45
800
60
1100
I_CCOQ Quiescent V_CCO supply current^(1,2)
XC2V40
XC2V80
XC2V250
XC2V500
XC2V1000
XC2V1500
XC2V2000
XC2V3000
XC2V4000
XC2V6000
XC2V8000
1
2
1
2
1
2
1
2
1
2
2
4
mA
2
4
2
4
2
4
2
4
2
4
I_CCAUXQ Quiescent V_CCAUX supply current^(1,2)
XC2V40
XC2V80
XC2V250
XC2V500
XC2V1000
XC2V1500
XC2V2000
XC2V3000
XC2V4000
XC2V6000
XC2V8000
5
25
5
25
5
25
5
25
5
25
7.5
50
mA
7.5
50
10
75
10
75
12.5
100
12.5
100
Notes:
1. With no output current loads, no active input pull-up resistors, all I/O pins are 3-state and floating.
2. If DCI or differential signaling is used, more accurate values can be obtained by using the Power Estimator or XPOWER™.
3. Data are retained even if V_CCO drops to 0 V.
4. Values specified for quiescent supply current parameters are Commercial Grade. For Industrial Grade values, multiply Commercial
Grade values by 1.25.
Power-On Power Supply Requirements
Xilinx FPGAs require a certain amount of supply current
during power-on to insure proper device operation. The
actual current consumed depends on the power-on ramp
rate of the power supply.
The V_CCINT, V_CCAUX, and V_CCO power supplies shall each
ramp on, monotonically, no faster than 200 μs and no slower
than 50 ms. Ramp on is defined as: 0 V_DC to minimum sup-
ply voltages.
Table 5 shows the minimum current required by Virtex-II
devices for proper power on and configuration.
Power supplies can be turned on in any sequence.⁽¹⁾
If any V_CCO bank powers up before V_CCAUX, then each bank
draws up to 300 mA, worst case, until the V_CCAUX powers
up.⁽²⁾ This does not harm the device. If the current is limited
to the minimum value above, or larger, the device powers on
properly after all three supplies have passed through their
power-on reset threshold voltages.
Once initialized and configured, use the power calculator to
estimate current drain on these supplies.
Notes:
1. If the V_CCINT ramp rate is longer than 10 ms, then V_CCINT must
be applied before V_CCO and V_CCAUX. The device will not be
damaged if this requirement is violated, but configuration will
probably fail.
2. The 300 mA is transient current (peak); it eventually
disappears even if V_CCAUX does not power up.
DS031-3 (v3.5) November 5, 2007
Product Specification
www.xilinx.com
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