Datasheet

52
TMS320F28379S , TMS320F28377S
TMS320F28376S, TMS320F28375S, TMS320F28374S
SPRS881C –AUGUST 2014–REVISED MAY 2016 www.ti.com
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Product Folder Links: TMS320F28379S TMS320F28377S TMS320F28376S TMS320F28375S TMS320F28374S
Specifications Copyright © 2014–2016, Texas Instruments Incorporated
5.4.2 Reducing Current Consumption
The F2837xS devices provide some methods to reduce the device current consumption:
• Any one of the four low-power modes—IDLE, STANDBY, HALT, and HIBERNATE—could be entered
during idle periods in the application.
• The flash module may be powered down if the code is run from RAM.
• Disable the pullups on pins that assume an output function.
• Each peripheral has an individual clock-enable bit (PCLKCRx). Reduced current consumption may be
achieved by turning off the clock to any peripheral that is not used in a given application. Table 5-2
indicates the typical current reduction that may be achieved by disabling the clocks using the
PCLKCRx register.
(1) At V
max
and 125°C.
(2) All peripherals are disabled upon reset. Use the PCLKCRx register
to individually enable peripherals. For peripherals with multiple
instances, the current quoted is for a single module.
(3) This number represents the current drawn by the digital portion of
the ADC, CMPSS, and DAC modules.
(4) The ePWM is at /2 of SYSCLK.
Table 5-2. Current on V
DD
Supply by Various
Peripherals (at 200 MHz)
(1)
PERIPHERAL
MODULE
(2)
I
DD
CURRENT
REDUCTION (mA)
ADC
(3)
3.3
CAN 3.3
CLA 1.4
CMPSS
(3)
1.4
CPUTIMER 0.3
DAC
(3)
0.6
DMA 2.9
eCAP 0.6
EMIF1 2.9
EMIF2 2.6
ePWM1 to ePWM4
(4)
4.5
ePWM5 to ePWM12
(4)
1.7
HRPWM
(4)
1.7
I
2
C 1.3
McBSP 1.6
SCI 0.9
SDFM 2
SPI 0.5
uPP 7.3
USB and AUXPLL at 60 MHz 23.8