Power Consumption
device. Decoupling capacitors were not used in this measurement. To
factor in the current for decoupling capacitors, sum up the current for
each capacitor using the following equation:
I = C (dV/dt)
If the regulator or power supply minimum output current is more than
the Stratix device requires, then the device may consume more current
than the maximum current listed in Table 4–34. However, the device does
not require any more current to successfully power up than what is listed
in Table 4–34.
Table 4–34. Stratix Power-Up Current (ICCINT) Requirements Note (1)
Power-Up Current Requirement
Device
Unit
Typical
Maximum
EP1S10
EP1S20
EP1S25
EP1S30
EP1S40
EP1S60
EP1S80
250
400
700
mA
mA
mA
mA
mA
mA
mA
1,200
1,500
1,900
2,300
2,600
3,000
500
550
650
800
1,000
Note to Table 4–34:
(1) The maximum test conditions are for 0° C and typical test conditions are for
40° C.
The exact amount of current consumed varies according to the process,
temperature, and power ramp rate. Stratix devices typically require less
current during power up than shown in Table 4–34. The user-mode
current during device operation is generally higher than the power-up
current.
The duration of the ICCINT power-up requirement depends on the VCCINT
voltage supply rise time. The power-up current consumption drops when
the VCCINT supply reaches approximately 0.75 V.
4–18
Stratix Device Handbook, Volume 1
Altera Corporation
January 2006
ALTERA [ ALTERA CORPORATION ]
