AS3701 datasheet(51/110 Pages) AMSOSRAM

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[v1-11] 2016-Dec-14

AS3701 − Detailed Description – System Functions

IO Functions: Shows the different Vselect control modes, depending on the setting of the GPIO special function 5.

Note(s):

1. AS3701B only

Stand-By and Vselect Input

This mode is very similar to the Vselect mode described in the

previous paragraph. The chip is set into stand-by mode when

the GPIOx pin goes high and wakes up again when the pin is

pulled low and the gpio_restart_int_m [InterruptMask2] has

been set before going into stand-by. Additional to the stand-by

feature, the voltage setting of 2 regulators can be changed with

the same command. This requires the setting of the

corresponding regulator (sd1_stby_on and/or ldo1_stby_on

and/or ldo2_stby_on [Reg_standby_mod1]).

The gpioX_mode [GPIOxcontrol] should be set to input.

The gpioX_iosf [GPIOxcontrol] should be set to Stand-by + vselect

input.

≠5

GPIO3 controls regulator selected by

reg1_select and reg2_select (1)

≠5

GPIO4 controls regulator selected by

reg1_select and reg2_select (1)

≠5

GPIO5 controls regulator selected by

reg1_select and reg2_select (1)

gpio1_

iosf

gpio2_

iosf

gpio3_

iosf

gpio4_

iosf

gpio5_

iosf

Vselect Mode

AS3701 Scheda tecnica(PDF) 51 Page - ams-OSRAM AG