PCIMX536AVV8B datasheet(24/180 Pages) FREESCALE

24 / 180 page

i.MX53xA Automotive and Infotainment Applications Processors, Rev. 1

Freescale Semiconductor

Electrical Characteristics

4.1.6

xAUSB-OH-3 (OTG + 3 Host ports) Module and the Two USB PHY

(OTG and H1) Current Consumption

Table 9 shows the USB interface current consumption.

4.2

Power Supplies Requirements and Restrictions

The system design must comply with power-up sequence, power-down sequence and steady state

guidelines as described in this section to guarantee the reliable operation of the device. Any deviation from

these sequences may result in the following situations:

•

Excessive current during power-up phase

•

Prevention of the device from booting

•

Irreversible damage to the i.MX53xA processor (worst-case scenario)

4.2.1

Power-Up Sequence

The following observations should be considered:

• The consequent steps in power up sequence should not start before the previous step supplies

have been stabilized within 90-110% of their nominal voltage, unless stated otherwise.

Table 9. USB Interface Current Consumption

Parameter

Conditions

Typical @ 25 °C

Max

Unit

Analog Supply 3.3 V

USB_H1_VDDA33

USB_OTG_VDDA33

Full Speed

5.5

High Speed

Analog Supply 2.5 V

USB_H1_VDDA25

USB_OTG_VDDA25

Full Speed

6.5

High Speed

Digital Supply

VCC (1.2 V)

Full Speed

—

High Speed

—

USB_H1_VDDA33 + USB_OTG_VDDA33 +

USB_H1_VDDA25 + USB_OTG_VDDA25 +

VCC

Suspend

——

μA

PCIMX536AVV8B Datasheet(PDF) 24 Page - Freescale Semiconductor, Inc

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