AS3701 datasheet(43/110 Pages) AMSOSRAM

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[v1-11] 2016-Dec-14

AS3701 − Detailed Description – System Functions

Enter Via SW

To enter the Stand-by mode via I²C command, the following

settings have to be done:

• Enable just these interrupt sources which should lead to

leave the stand-by mode

• Make sure that the specified interrupt is inactive (clear the

• Define which regulators should be kept powered during

Stand-by mode (sdX_stby_on and ldoX_stby_on [Reg_

standby_mod1])

• Set the off_delay [Startup_Control] for going into stand-by

after the I²C command

• Set standby_mode_on [ReferenceControl] to 1

During Stand-by all regulators are switched OFF, except those,

which are selected either with RegX_select [Reg_Control] or with

sdX_stby_on and ldoX_stby_on [Reg_standby_mod1]. XRES goes

active (can be disabled with standby_reset_disable [Sartup_

Control]) and pwr_good goes inactive. Furthermore, to save

power especially in this mode, the internal oscillator is just

working, when it is needed.

Leaving Stand-By

Stand-by can be terminated by:

• Any kind of interrupt (if it was defined right before going

into Stand-by)

• ON-key push-button press (on_tast_sw is set to “0”)

• Reset

• Power OFF

• Overtemperature

AS3701 Arkusz danych(PDF) 43 Page - ams-OSRAM AG