TMS320C28346_11 Datasheet, PDF (110/170 Pages) Texas Instruments – Delfino Microcontrollers

TMS320C28346, TMS320C28345, TMS320C28344
TMS320C28343, TMS320C28342, TMS320C28341
SPRS516B – MARCH 2009 – REVISED JULY 2010
www.ti.com
6.4 Current Consumption
Table 6-1. TMS320C28346/C28344⁽¹⁾ Current Consumption by Power-Supply Pins at 300-MHz
SYSCLKOUT
MODE
Typical
Operational
IDLE
STANDBY
HALT
TEST CONDITIONS
The following peripheral clocks are
enabled:
• ePWM1/2/3/4/5/6/7/8/9
• eCAP1/2/3
• eQEP1/2/3
• eCAN-A
• SCI-A/B (FIFO mode)
• SPI-A (FIFO mode)
• McBSP-A
• I2C
• XINTF
• DMA
• CPU Timer 0/1/2
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. ⁽³⁾
XCLKOUT is turned off.
Peripheral clocks are off.
Peripheral clocks are off.
Peripheral clocks are off.
Input clock is disabled.⁽⁴⁾
25°C
335 mA
205 mA
140 mA
135 mA
I_DD
105°C
555 mA
425 mA
360 mA
355 mA
125°C
740 mA
610 mA
545 mA
540 mA
25°C
75 mA
15 mA
15 mA
15 mA
I_DDIO ⁽²⁾
105°C
75 mA
15 mA
15 mA
15 mA
125°C
80 mA
18 mA
18 mA
18 mA
25°C
I_DD18
105°C
125°C
50 mA
47 mA
45 mA
50 mA
50 mA
550 mA
47 mA
47 mA
550 mA
45 mA
45 mA
550 mA
(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 Table 6-3) 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 Table 6-1 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 Table 6-3) from the I_DD current numbers shown in
Table 6-1.
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.
110 Electrical Specifications
Copyright © 2009–2010, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Link(s): TMS320C28346, TMS320C28345, TMS320C28344 TMS320C28343, TMS320C28342,
TMS320C28341