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AS3709 数据表(PDF) 32 Page - ams AG

部件名 AS3709
功能描述  關PMIC with 5 DCDC and 2 LDOs
PDF  74 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  AMSCO [ams AG]
网页  http://www.ams.com
标志 AMSCO - ams AG

AS3709 数据表(HTML) 32 Page - ams AG

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AS3709 – 32
ams Datasheet, Confidential: 2013-Aug [1-02]
Det a il e d De sc r i pt ion - S y s t em F u nc t i on s
Vselect Input
As long as the GPIOx pin is high the DCDC/LDOs operate with
the normal register settings. If the GPIOx pin goes low the
settings will change to the ones stored in regX_voltage.
The gpioX_mode should be set to input.
Figure 42:
GPIO Vselect Modes
IO Functions: Shows the 4 different Vselect modes, depending on the setting of gpioX_iosf
Stand-by and Vselect Input
This mode is very similar to the Vselect mode described in the
previous paragraph. In addition to switch between 2 register
settings of 2 regulators the chip is set into stand-by mode when
the GPIOx pin goes low and wakes up again when the pin is
pulled high.
The gpioX_mode should be set to input.
GPIO1 and GPIO2 may be used to control two regulators
separately.
Figure 43:
Stand-by and Vselect Modes
IO Functions: Shows the 4 different Vselect and Stand-by control modes, depending on the setting of gpioX_iosf
gpio1_iosf
gpio2_iosf
Vselect mode
<> 5
<> 5
No voltage select by GPIO for regulator
<> 5
5
GPIO2 controls regulator selected by reg1_select and reg2_select
5
<> 5
GPIO1 controls regulator selected by reg1_select and reg2_select
55
GPIO1 controls regulator selected by reg1_select
GPIO2 controls regulator selected by reg2_select
gpio1_iosf
gpio2_iosf
Vselect Mode
Stand-by Control
<> 6
<> 6
no voltage select by GPIO for regulator
No
<> 6
6
GPIO2 controls regulator selected by reg1_select
and reg2_select
Yes
6<> 6
GPIO1 controls regulator selected by reg1_select
and reg2_select
Yes
66
GPIO1 controls regulator selected by reg1_select
GPIO2 controls regulator selected by reg2_select
Yes



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