TC39x BC/BD-Step
Electrical SpecificationPower Supply Current
Table 3-29 Module Core Current Consumption (cont’d)
Parameter
Symbol
Values
Typ.
Unit
Note / Test Condition
Min.
Max.
I
DD core dynamic current load
IDDSPULJ2
-
-
310 3)
mA
CTRL.DIV = 00; SPU
@ 300 MHz; FFT
length 512;
jump during IDDSPU2 pattern. CC
DATSRC=EMEM;
complex windowing
I
DD core dynamic current added IDDLBIST CC
by LBIST
DD core dynamic current added IDDMBIST CC -
by MBIST
-
-
-
150 4)
225
mA
mA
LBIST Configuration A;
1.2V ≤ VDD
I
fMBIST = 300MHz;
tMBIST < 6ms. MTU
Ganging procedure for
SRAM test and
initialization; VDD =
1.375V.
1) The current consumption includes basic HSM activity incl. AES module.
2) The current is estimated as the sum of the SPU base load current at clock activation and average current caused by SPU
dynamic activity as defined in the conditions. Secondary Voltage Monitor over-voltage threshold shall be set to VDD + 10%
and under-voltage threshold shall be set to VDD - 9% respectively.
During the SPU operational phase for IDDSPU1/2 usecase, the externally supplied VDD voltage has to be equal or greater than
1.225V (VDD nominal - 2%) for static accuracy part and the overall static and dynamic at the VDD supply pin shall be limited to
(VDD nominal -8%).
3) The dynamic current load jump during SPU activity as defined by the conditions observed at the VDD pin beyond a settling
time duration of 20 us.
4) LBIST is executed either during start-up phase or can be triggered by application software. Secondary voltage monitors are
inactive during the LBIST execution time (tLBIST).
During the start-up phase externally supplied VDD voltage has to be equal or greater than 1.2V (VDD nominal - 4%) for static
accuracy.
If VDD is supplied internally by EVRC, EVRC takes care not to violate the VDD 1.2V static under voltage limit.
3.12.1
Calculating the 1.25 V Current Consumption
The current consumption of the 1.25 V rail is composed of two parts:
•
•
Static current consumption
Dynamic current consumption
The static current consumption is related to the device temperature TJ and the dynamic current consumption
depends on the configured clocking frequencies and the software application executed. These two parts need to
be added in order to get the rail current consumption.
(3.1)
mA
0, 0246 × T
--------
C
I
= 5, 8871
× e
[C]
J
0
(3.2)
mA
--------
0, 0232 × T
I
= 16, 4863
× e
[C]
J
0
C
Equation (3.1) defines the typical static current consumption and Equation (3.2) defines the maximum static
current consumption. Both functions are valid for VDD = 1.275 V.
Data Sheet
452
V 1.2, 2021-03
OPEN MARKET VERSION
INFINEON [ Infineon ]
