Atmel AT90PWM2 Manual page 315

27.2.1.3 Example 3
27.3 Power-Down Supply Current
AT90PWM2/3/2B/3B
316
= 3.0V and F = 1MHz. The total current consumption in idle mode with USART, TIMER1, and
SPI enabled, gives:
≈ • (
I 0.6mA 1 + 0.156
CC
total
All I/O modules should be enabled. Calculate the expected current consumption in active mode
at V = 3.6V and F = 10MHz. We find the active current consumption without the I/O modules
CC
to be ~ 7.0mA (from
Figure 27-2
we find the total current consumption:
≈ • (
I 7.0mA 1 + 0.1 +
CC
total
Figure 27-9. Power-Down Supply Current vs. V
7
6
5
4
3
2
1
0
2 2,5
) ≈
+ 0.085 + 0.053 0.77mA
). Then, by using the numbers from
0.1 + 0.1 + 0.085 + 0.043 + 0.053
POWER-DOWN SUPPLY CURRENT vs. V
WATCHDOG TIMER DISABLED
3 3,5 4
V (V)
CC
Table 27-2
) ≈
+ 0.156 + 0.105 12.2mA
(Watchdog Timer Disabled)
CC
CC
4,5 5
- second column,
105 °C
85 °C
-40 °C
25 °C
5,5
4317I–AVR–01/08