4 current consumption – Texas Instruments TMS320F2802 User Manual
Page 95
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SPRS230N – OCTOBER 2003 – REVISED MAY 2012
6.4
Current Consumption
Table 6-1. TMS320F2809, TMS320F2808 Current Consumption by Power-Supply Pins at 100-MHz
SYSCLKOUT
I
DD
I
DDIO
(1)
I
DD3VFL
(2)
I
DDA18
(3)
I
DDA33
(4)
MODE
TEST CONDITIONS
TYP
(5)
MAX
(6)
TYP
(5)
MAX
(6)
TYP
MAX
(6)
TYP
(5)
MAX
(6)
TYP
(5)
MAX
(6)
The following peripheral
clocks are enabled:
•
ePWM1/2/3/4/5/6
•
eCAP1/2/3/4
•
eQEP1/2
•
eCAN-A
•
SCI-A/B
•
SPI-A
•
ADC
•
I2C
Operational
195 mA
230 mA
15 mA
27 mA
35 mA
40 mA
30 mA
38 mA
1.5 mA
2 mA
All PWM pins are toggled
(Flash)
at 100 kHz.
All I/O pins are left
unconnected.
Data is continuously
transmitted out of the
SCI-A, SCI-B, and
eCAN-A ports. The
hardware multiplier is
exercised.
Code is running out of
flash with 3 wait-states.
XCLKOUT is turned off.
Flash is powered down.
XCLKOUT is turned off.
The following peripheral
clocks are enabled:
IDLE
75 mA
90 mA
500
μ
A
2 mA
2
μ
A
10
μ
A
5
μ
A
50
μ
A
15
μ
A
30
μ
A
•
eCAN-A
•
SCI-A
•
SPI-A
•
I2C
Flash is powered down.
STANDBY
6 mA
12 mA
100
μ
A
500
μ
A
2
μ
A
10
μ
A
5
μ
A
50
μ
A
15
μ
A
30
μ
A
Peripheral clocks are off.
Flash is powered down.
HALT
Peripheral clocks are off.
70
μ
A
60
μ
A
120
μ
A
2
μ
A
10
μ
A
5
μ
A
50
μ
A
15
μ
A
30
μ
A
Input clock is disabled.
(1)
I
DDIO
current is dependent on the electrical loading on the I/O pins.
(2)
The I
DD3VFL
current indicated in this table is the flash read-current and does not include additional current for erase/write operations.
During flash programming, extra current is drawn from the V
DD
and V
DD3VFL
rails, as indicated in
. If the user application
involves on-board flash programming, this extra current must be taken into account while architecting the power-supply stage.
(3)
I
DDA18
includes current into V
DD1A18
and V
DD2A18
pins. In order to realize the I
DDA18
currents shown for IDLE, STANDBY, and HALT,
clock to the ADC module must be turned off explicitly by writing to the PCLKCR0 register.
(4)
I
DDA33
includes current into V
DDA2
and V
DDAIO
pins.
(5)
TYP numbers are applicable over room temperature and nominal voltage.
(6)
MAX numbers are at 125°C and MAX voltage.
NOTE
The peripheral - I/O multiplexing implemented in the 280x devices prevents all available
peripherals from being used at the same time. This is because more than one peripheral
function may share an I/O pin. It is, however, possible to turn on the clocks to all the
peripherals at the same time, although such a configuration is not useful. If this is done, the
current drawn by the device will be more than the numbers specified in the current
consumption tables.
Copyright © 2003–2012, Texas Instruments Incorporated
Electrical Specifications
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