Texas Instruments IC FLPT TMS320C28346ZFET PBGA-256 TID TMS320C28346ZFET 데이터 시트
제품 코드
TMS320C28346ZFET
SPRS516D – MARCH 2009 – REVISED AUGUST 2012
6.4
Current Consumption
Table 6-1. TMS320C28346/C28344
(1)
Current Consumption by Power-Supply Pins at 300-MHz
SYSCLKOUT
I
DD
I
DDIO
(2)
I
DD18
MODE
TEST CONDITIONS
25°C
105°C
125°C
25°C
105°C
125°C
25°C
105°C
125°C
The following peripheral clocks are
enabled:
enabled:
•
ePWM1, ePWM2, ePWM3,
ePWM4, ePWM5, ePWM6,
ePWM7, ePWM8, ePWM9
ePWM4, ePWM5, ePWM6,
ePWM7, ePWM8, ePWM9
•
eCAP1, eCAP2, eCAP3
•
eQEP1, eQEP2, eQEP3
•
eCAN-A
•
SCI-A, SCI-B (FIFO mode)
•
SPI-A (FIFO mode)
Typical
335 mA
555 mA
740 mA
75 mA
75 mA
80 mA
50 mA
47 mA
45 mA
•
McBSP-A
Operational
•
I2C
•
XINTF
•
DMA
•
CPU-Timer 0, CPU-Timer 1,
CPU-Timer 2
CPU-Timer 2
All PWM pins are toggled at
300 kHz.
All I/O pins are left unconnected.
XCLKOUT is turned off. Pullups on
output pins and XINTF pins are
disabled.
300 kHz.
All I/O pins are left unconnected.
XCLKOUT is turned off. Pullups on
output pins and XINTF pins are
disabled.
(3)
XCLKOUT is turned off.
IDLE
205 mA
425 mA
610 mA
15 mA
15 mA
18 mA
50 mA
47 mA
45 mA
Peripheral clocks are off.
STANDBY
Peripheral clocks are off.
140 mA
360 mA
545 mA
15 mA
15 mA
18 mA
50 mA
47 mA
45 mA
Peripheral clocks are off.
HALT
135 mA
355 mA
540 mA
15 mA
15 mA
18 mA
550
μ
A
550
μ
A
550
μ
A
Input clock is disabled.
(4)
(1)
The I
DD
numbers in this table are valid for the TMS320C28346 and TMS320C28344 devices only. For the TMS320C28342 device,
subtract the I
DD
current numbers for those peripherals that do not exist on this device (see
) from the I
DD
current numbers
shown in this table.
(2)
I
DDIO
current is dependent on the electrical loading on the I/O pins.
(3)
The following is done in a loop:
•
•
Data is continuously transmitted out of the SCI-A, SCI-B, SPI-A, McBSP-A, and eCAN-A ports.
•
Floating-point multiplication and addition are performed.
•
32-bit read/write of the XINTF is performed.
•
DMA channels 1 and 2 transfer data from SARAM to SARAM.
•
GPIO19 is toggled.
(4)
If a quartz crystal or ceramic resonator is used as the clock source, the HALT mode shuts down the internal oscillator.
NOTE
The I
DD
numbers in
are valid for the TMS320C28346 and TMS320C28344 devices
only. For the TMS320C28342 device, subtract the I
DD
current numbers for those peripherals
that do not exist on this device (see
) from the I
DD
current numbers shown in
NOTE
The peripheral - I/O multiplexing implemented in the device 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.
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 © 2009–2012, Texas Instruments Incorporated
Electrical Specifications
109
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