UCS81003 datasheet(92/108 Pages) MICROCHIP

tên linh kiện	UCS81003

Giải thích chi tiết về linh kiện	Automotive USB Port Power Controller with Charger Emulation

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UCS81003

DS20005334A-page 92

 2014 Microchip Technology Inc.

10.14 Current Limiting Behavior

Configuration Registers

10.14.1

APPLIED CURRENT LIMITING

BEHAVIOR REGISTER

The Applied Current Limiting Behavior Register stores

the values used by the applied current limiting mode

(Trip or CC) when the custom settings are not used.

The contents of this register are updated automatically

when charger emulation is completed.

Name

Bits Address

Cof

Default

Applied Current

Limiting Behavior

850h

82h

Custom Current

Limiting Behavior

Config

851h

R/W

82h

R-1

R-0

U-x

R-0

R-1

R-0

SEL_VBUS_MIN<1:0>

—

SEL_R2_IMIN<2:0>

RESERVED

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 7-6

SEL_VBUS_MIN<1:0>: Define the VBUS_MIN voltage as follows:

1.5V

1.75V

2.0V

2.25V

bit 5

Unimplemented

bit 4-2

SEL_R2_IMIN<2:0>: Define the IBUS_R2MIN current as follows:

000

= 120 mA

001

= 570 mA

010

= 1000 mA

011

= 1350 mA

100

= 1680 mA

101

= 2050 mA

bit 1-0

RESERVED: Do not change.

Note 1:

The values specified above are the typical ones..

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