AS3722 datasheet(69/199 Pages) AMSOSRAM

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[v1-01] 2015-Sep-07

AS3722 − Detailed Descriptions- System Functions

AC_OK

Additional power_on input which is used to e.g. detect a

charger adapter.

With ac_ok_rising_en the detection can be switched between

edge and level, while ac_ok_pwr_on will disable/enable the

input. ac_ok_pwr can be used to check the status. An interrupt

can be generated on rising and falling edges.

In addition this input is also used to generate the OC_PG output.

LID

Additional power_on input which is used to e.g. detect the

open/close stated of the lid from a clam shell device.

With lid_rising_en the detection can be switched between edge

and level, while lid_pwr_on will disable/enable the input.

lid_pwr can be used to check the status. An interrupt can be

generated on rising and falling edges.

Output Pins

VBAT_ALARM (not de-bounced)

Will go high if VSUP falls below ResVoltFall and SupResEn = 0.

CLK32K

Dedicated pin for providing a 32kHz clock from the RTC

oscillator. The pin can be disabled with clk32out_en.

XINT

Dedicated pin for providing an active low output signal on any

enabled (un-masked) interrupt event. For XINT pin an internal

pull-up can be enabled to VDD_GPIO_lv (INT_pullup). This bit

also switches the output driver to open drain.

OC_PG

Is a dedicated output pin signaling over-current and power

good events of SD0 plus additional inputs (see block diagram

below).

AS3722 Scheda tecnica(PDF) 69 Page - ams-OSRAM AG