UPD360 datasheet(18/221 Pages) MICROCHIP

18 / 221 page

UPD360

DS00002084C-page 18

 2016-2017 Microchip Technology Inc.

Over-Current

Sense

Comparator 2

OCS_COMP2

This pin is used by the integrated OCS comparator to

detect for error conditions.

Note:

Tie this signal to ground when unused.

Refer to Section 8.3, "External Over-current Detection," on

page 39 for additional information.

No Connect

For proper operation, this pin must be left unconnected.

Power/Ground

+3.3V

Voltage

Switch

Supply

VSW

+3.3V power supply output from the integrated power

switch.

Note:

This pin also provides capacitance for integrated

power switch and must be connected to a 1 uF

(<100 Mohm ESR) capacitor to ground.

+3.3V

VBUS Supply

3V3_VBUS

+3.3V power supply input derived from VBUS to the inte-

grated power switch.

Note:

This pin must be connect to a 2.2 uF capacitor

to ground.

+3.3V

Always Supply

3V3_ALW

+3.3V main power supply input to the integrated power

switch.

Note:

This pin must be connect to a 2.2 uF capacitor

to ground.

+3.3V I/O

Power Supply

Input

VDD33IO

+3.3V I/O power supply input.

+1.8V Digital

Core Power

Supply Capaci-

tor

VDD18_CAP

+1.8V digital core power supply capacitor. This signal must

be connected to a 1uF capacitor to ground for proper oper-

ation.

VBUS

Port Power

Switch Output

VBUS

Port power switch output.

Note:

Both VBUS signals must be tied together.

+5V

Port Power

Switch Input

+5V input to port power switch.

Note:

Both VS signals must be tied together.

Note:

A 1uF capacitor to ground is required on this sig-

nal for a single port configuration. If more than

one port is used, an additional 1uF of capaci-

tance must be added for each additional port.

Ground

VSS

Ground pins.

TABLE 3-4:

BALL DESCRIPTIONS (CONTINUED)

NAME

SYMBOL

BUFFER

TYPE

DESCRIPTION

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