STUSB4500 datasheet(21/41 Pages) STMICROELECTRONICS

部件名	STUSB4500

功能描述	Standalone USB PD sink controller with short-to-VBUS protections

PDF	41 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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21 / 41 page

Table 17. Look-up table for sink PDO current configuration

Parameter name

Parameter value

PDO current value

Description

I_SNK_PDO_LUT[3:0]

0000b

0.01 ≤ 0.01*I_SNK_PDO_FLEX[9:0] ≤ 5 by steps of

10 mA

Default I_SNK_PDO_FLEX[9:0] = 0011001000

(0.01*200=2 A)

Flexible current value

0001b

0.50 A

Pre-defined current

values

0010b

0.75 A

0011b

1.00 A

0100b

1.25 A

0101b

1.50 A

0110b

1.75 A

0111b

2.00 A

1000b

2.25 A

1001b

2.50 A

1010b

2.75 A

1011b

3.00 A

1100b

3.50 A

1101b

4.00 A

1110b

4.50 A

1111b

5.00 A

Table 18. STUSB4500 default sink PDO programming

Sink PDO #

Type

Priority

PDO value

VBUS monitoring

Low voltage limit

VMONUSBL

VBUS monitoring

High voltage limit

VMONUSBH

PDO1

Fixed voltage

Low

5 V / 1.5 A

3.3 V (detachment)

-20 % (attachment)

+15 %

PDO2

Flexible

voltage

Medium

15 V / 1.5 A

-20 %

+10 %

PDO3

Flexible

voltage

High

20 V / 1.0 A

-20 %

+10 %

See Section 7.3 Electrical and timing characteristics for parameters related to VBUS.

STUSB4500

Default start-up configuration

DS12499 - Rev 2

page 21/41

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