MAX14746 datasheet(21/41 Pages) MAXIM

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Status A Register

*POR value depends on external conditions.

ADDRESS:

0x02

MODE:

Read Only

BIT

NAME

ChgTyp[3:0]

BatDet

ChgStat[2:0]

RESET

SEE TABLE 4

ChgTyp[3:0]

ChgTyp[3:0] identifies what kind of charger is detected on the USB connector.

0000 = Nothing attached.

0001 = SDP. In automatic mode, the current limit is set to 500mA (Or 100mA if UsbCompl = 0).

0010 = CDP. In automatic mode, the current limit is set to 1.5A.

0011 = DCP. In automatic mode, the current limit is set to 1.5A.

0100 = Apple 500mA charger. In automatic mode, the current limit is set to 500mA

0101 = Apple 1A charger. In automatic mode, the current limit is set to 500mA.

0110 = Apple 2A charger. In automatic mode, the current limit is set to 1.5A.

0111 = Non-standard charger (D+/D- > 0.715 x VVB, possibly indicating a PS2 adapter). In automatic mode, the

current limit is set to 0mA.

1010 = Other charger (D+/D- = 0.46 x VVB to 0.715 x VVB). In automatic mode, the current limit is set to 500mA.

Other = Reserved

BatDet

BatDet indicates the status of the battery detection when VB is present.

0 = No battery detected.

1 = Battery detected.

ChgStat[2:0]

ChgStat[2:0] indicates the current status of the battery charger.

000 = Charger off.

001 = Charging suspended due to overtemperature.

010 = Precharge in progress.

011 = Fast charge in progress using constant-current mode.

100 = Fast charge in progress using constant-voltage mode.

101 = Maintain charge in progress.

110 = Maintain charge timer done.

111 = Charger fault condition.

MAX14746/MAX14747

USB Detection with Smart Power

Selector Li+ Chargers

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