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AS3715 Datasheet(PDF) 67 Page - ams AG

Part # AS3715
Description  Dual Power Path PMIC
PDF  160 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS3715 Datasheet(HTML) 67 Page - ams AG

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ams Datasheet, Confidential
Page 67
[v1-00] 2014-Sep-10
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AS3715 − Detailed Description – System Functions
Current Sink PWM Input
The GPIO is used as PMW input for the current sink to control
the current. 100% PWM mode will set the current to the value
set by currX_current. The PWM control has to be enabled by
currX_ctrl =11b for each current sink to be controlled. The
gpioX_mode should be set to input.
Vselect Input
As long as the GPIOx pin is low the DCDC/LDOs operate with
the normal register settings. If the GPIOx pin goes high the
settings will change to the ones stored in regX_voltage.
The gpioX_mode should be set to input.
The regulator affected by this mode is selected by regX_select.
While GPIO3 to GPIO6 always control all regulators selected by
regX_select, GPIO1 and GPIO2 may be used to control two
regulators separately:
Figure 69:
GPIO Vselect Modes
Vselect Mode: Shows the different GPIO voltage control modes for regulators.
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 3 regulators, the chip is set to stand-by mode when
the GPIOx pin goes high and wakes up again when the pin is
pulled low.
The gpioX_mode should be set to input.
While GPIO3 to GPIO6 always control all regulators selected by
regX_select, GPIO1 and GPIO2 may be used to control two
regulators separately:
gpio1_iosf
gpio2_iosf
Vselect mode
≠ 5
≠ 5
No voltage select by GPIO for regulator
≠ 5
5
GPIO2 controls regulator selected by reg1_select, reg2_select and
reg3_select
5≠ 5
GPIO1 controls regulator selected by reg1_select, reg2_select and
reg3_select
55
GPIO1 controls regulator selected by reg1_select
GPIO2 controls regulator selected by reg2_select & reg3_select



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