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1/18/2017

2016-11-0004

PT0493-4

19

PI5USB2546

Below tables can be used as an aid to program the PI5USB2546 per system states however not restricted to below settings only.

PI5USB2546 Control Pin Setting Matched to System Power States

System Global

Power State

Charging Mode

CTL1

CTL2

CTL3

ILIM_SEL

Current Limit

Setting

S0

SDP1

1

1

0

1 or 0

ILIM_HI/ILIM_LO

S0

SDP2, no discharge to/from CDP

1

1

1

0

ILIM_LO

S0

CDP, load detection with ILIM_LO +

25mA thresholds or if a BC1.2 primary

detection occurs

1

1

1

1

ILIM_HI

S4/S5

Auto mode, load detection with power

wake thresholds

0

0

1

1

ILIM_HI

S3/S4/S5

Auto mode, no load detection

0

0

1

0

ILIM_HI

S3

Auto mode, keyboard/mouse wake up,

load detection with ILIM_LO + 25mA

thresholds

0

1

1

1

ILIM_HI

S3

Auto mode, keyboard/mouse wake up,

no load detection

0

1

1

0

ILIM_HI

S3

SDP1, keyboard/mouse wake up

0

1

0

1 or 0

ILIM_HI/ILIM_LO