TC290 Datasheet, PDF (372/476 Pages) Infineon Technologies AG – 32-Bit Single-Chip Micocontroller

TC290 / TC297 / TC298 / TC299 BB-Step
Electrical SpecificationPower Supply Current
2) Realistic Pflash read pattern with 70% Pflash bandwidth utlilization and a code mix of 50% 0s and 50% 1s. A common
decoupling capacitor of atleast 100nF for (V_DDFL3+V_DDP3) is used. Dflash read current is also included. Flash read current
is predominantly drawn from V_DDFL3 pin and a minor part drawn from the neighbouring V_DDP3 pin.
3) Continuous Dflash programming in burst mode with 3.3 V supply and realistic Pflash read access in parallel. Erase currents
of the corresponding flash modules are less than the respective programming currents at V_DDP3 pin. Programming and
erasing flash may generate transient current spikes of up to x mA for maximum x us which is handled by the decoupling
and buffer capacitors. This parameter is relevant for external power supply dimensioning and not for thermal
considerations.
4) In addition to the current specified, upto 4 mA is additionally drawn at V_EXT supply in burst programming mode with 5V
external supply. Erase currents of the corresponding flash modules are less than the respective programming currents at
V_DDP3 supply. This parameter is relevant for external power supply dimensioning and not for thermal considerations.
5) The current consumption is for 2 pairs of LVDSM differential pads (8 pins). A single pair of LVDSM differential pads (4 pins)
consumes 7 mA.
6) The current consumption is for 6 DS channels with standard performance (MCFG=11b). A single DS channel instance
consumes 6-8 mA.
7) A single converter instance of VADC unit consumes 2 mA.
8) The total current drawn from external regulator is estimated with 72% EVR13 SMPS regulator Efficiency. I_DDTOTDCx is
calculated from I_DDTOT using the scaled core current [(I_DD x V_DD)/(VinxEfficiency)] and constitutes all other rail currents and
I_DDM.
9) Σ Sum of all currents during RUN mode at V_EVRSB supply pin is less than 8 mA. It is recommended to have atleast 100 nF
decoupling capacitor at this pin.
3.13.1 Calculating the 1.3 V Current Consumption
The current consumption of the 1.3 V rail compose out of two parts:
• Static current consumption
• Dynamic current consumption
The static current consumption is related to the device temperature T_J and the dynamic current consumption
depends of the configured clocking frequencies and the software application executed. These two parts needs to
be added in order to get the rail current consumption.
Valid for Feature Package T, TP, and TC products:
(3.2)
I0
=
0, 894
m------A--
C
× e0^{, 0289 × TJ}[C]
I0
=
4, 319
m------A--
C
× e0^{, 0259 × TJ}[C]
(3.3)
Valid for Feature Package TA, TB, TX, and TY products:
I0
=
2, 731
m------A--
C
× e0^{, 0244 × TJ}[C]
(3.4)
I0
=
5, 832
m------A--
C
× e0^{, 0257 × TJ}[C]
(3.5)
Data Sheet
3-366
V 1.1 2015-05
TC290/TC297/TC298/TC299 BB-Step Data Sheet downloaded by saravanakumar maniyam (larsen and Toubro limited) at 08 Sep 2015 08:06