UPD360 datasheet(173/221 Pages) MICROCHIP

Part #	UPD360

Description	Highly Integrated Small Form Factor USB Type-C??Power Delivery 2.0 Port Controller

PDF	221 Pages

Scroll/Zoom	100%

Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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173 / 221 page

 2016-2017 Microchip Technology Inc.

DS00002084C-page 173

UPD360

The port power switch will be turned off (trip action).

The PPC will enter the Error state and assert ALERT.

The fault handling circuitry will then determine subsequent actions.

Figure 12-1 shows operation of current limits in trip mode with the shaded area representing the USB 2.0 specified

VBUS range. Dashed lines indicate the port power switch output will go to zero (e.g., trip) when ILIM is exceeded. Note

that operation at all possible values of ILIM are shown in Figure 12-1 for illustrative purposes only; in actual operation

only one ILIM can be active at any time.

FIGURE 12-1:

TRIP CURRENT LIMITING OPERATION

0.53

1.07

1.6

2.67

3.2

5.25

4.75

IBUS (Amps)

Operating

Current

0.96

1.28

1.07

0.96

0.53

1.6

3.2

2.13

2.67

= ILIM’s

2.13

Power Switch Voltage and Current Output

go to Zero when ILIM is Exceeded

Trip action

(ILIM = 0.53 A)

Trip action

(ILIM = 3.2 A)

ILIM (Amps)

UPD360 Datasheet(PDF) 173 Page - Microchip Technology