AM625: Maximum current consumption

Koichiro Tashiro

Part Number: AM625

Hi,

My customer wants to know the maximum current consumption for each power supply in AM625 for board design.
He found below E2E post.
https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1109224/am625-power-consumption-of-am625

The customer wants to clarify which "Power Supply" in the table corresponds to "POWER SUPPLY NAME" in datasheet section 7.4.
Here are what he understood.

Power Supply POWER SUPPLY NAME
========================================================================================
VDD_CORE VDD_CORE, VDDA_CORE_CSIRX0, VDDA_CORE_USB, VDDA_DDR_PLL0, VDD_CANUART
VDDR_CORE VDDR_CORE
VDDS_DDR VDDS_DDR, VDDS_DDR_C
1.8V Analog VDDA_MCU, VDDA_PLL0, VDDA_PLL1, VDDA_PLL2, VDDA_1P8_CSIRX0, VDDA_1P8_OLDI0, VDDA_1P8_USB, VDDA_TEMP0, VDDA_TEMP1
1.8/3.3V VDDSHVx VDDSHV0 to VDDSHV6
SD IF ???
1.8V MCU Analog VDDA_MCU
3.3V MCU IO VDDSHV_MCU
Efuse VPP VPP
Unknown VDDSHV_CANUART, VDDS_OSC0, VMON_1P8_SOC, VDDA_3P3_USB, VMON_3P3_SOC, VMON_SYS, USB0_VBUS, USB1_VBUS

Could you clarify which "Power Supply" in the table includes each "POWER SUPPLY NAME"?

Thanks and regards,
Koichiro Tashiro

over 3 years ago

0 Kalyan Gajjala over 3 years ago

TI__Prodigy 640 points

Hi Koichiro Tashiro,

Thank you for reaching out.

Please check the below table.

VDD_CORE	VDD_CORE, VDDA_CORE_CSIRX0, VDDA_CORE_USB, VDDA_DDR_PLL0, VDD_CANUART
VDDR_CORE	VDDR_CORE
VDDS_DDR	VDDS_DDR, VDDS_DDR_C
1.8V Analog	VDDA_MCU, VDDA_PLL0, VDDA_PLL1, VDDA_PLL2, VDDA_1P8_CSIRX0, VDDA_1P8_OLDI0, VDDA_1P8_USB, VDDA_TEMP0, VDDA_TEMP1, VDDS_OSC0
1.8 VDDSHVx (200mA)	VDDSHV0 to VDDSHV6, VMON_1P8_SOC, VDDSHV_CANUART(if powering with 1.8V)
3.3V VDDSHVx (200mA)	VDDSHV0 to VDDSHV6, VMON_3P3_SOC, VDDA_3P3_USB, VDDSHV_CANUART(if powering with 3.3V)
SD IF	VDDSHV5 (SoC_VDDSHV5_SDIO(MMC1))
1.8V MCU Analog	VDDA_MCU
3.3V MCU IO	VDDSHV_MCU
Efuse VPP	VPP
VMON_VSYS	VMON_VSYS input leakage current may be in the range of 10 nA to 2.5 µA
USB0_VBUS, USB1_VBUS	500mA for each USB_VBUS (referred USB2.0 Spec)

Thanks & Regards,

Kalyan.

0 Koichiro Tashiro over 3 years ago in reply to Kalyan Gajjala

TI__Mastermind 22945 points

Hi Kalyan,

Thanks for the answer.
I have two more questions.

Q1) Regarding "1.8 VDDSHVx" and "3.3V VDDSHVx", your table shows 200mA.
On the other hand, below pdf attached on the old post says 150mA.
/cfs-file/__key/communityserver-discussions-components-files/791/MaxCurrent_5F00_Sitara-Power-Requirements-03162022-_2800_003_2900_.pdf
200mA is correct value?

Q2) For SD IO (VDDSHV5), the 50mA is not included in above 1.8V/3.3V VDDHSVx(200mA), correct?

Thanks and regards,
Koichiro Tashiro

0 Kalyan Gajjala over 3 years ago in reply to Koichiro Tashiro

TI__Prodigy 640 points

Hi Koichiro Tashiro,

Q1) 200mA is correct value?

Based on AM62x Max Current Ratings table 150mA is the max current for VDDSHVx. Please follow the values in the below link

/cfs-file/__key/communityserver-discussions-components-files/791/MaxCurrent_5F00_Sitara-Power-Requirements-03162022-_2800_003_2900_.pdf

Regards,

Kalyan.

+1 Kallikuppa Sreenivasa over 3 years ago in reply to Kalyan Gajjala

TI__Guru**** 210220 points

Hi Koichiro Tashiro,

Regarding "1.8 VDDSHVx" and "3.3V VDDSHVx", your table shows 200mA., On the other hand, below pdf attached on the old post says 150mA.
/cfs-file/__key/communityserver-discussions-components-files/791/MaxCurrent_5F00_Sitara-Power-Requirements-03162022-_2800_003_2900_.pdf
200mA is correct value?

The 200mA current is based on the EVM power tree supply current provisioning. This is only an indication for designers.

The table linked above is the actual measurements that can be considered for calculating the power consumption.

Q2) For SD IO (VDDSHV5), the 50mA is not included in above 1.8V/3.3V VDDHSVx(200mA), correct?

3.3V/1.8V SD CARD SUPPLY connected to VDDSHV5 is generated using an external LDO . This current is typically not included in the above current calculation for the other supplies. due to the use case.

Regards,

Sreenivasa

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AM625: Maximum current consumption