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AS3658 Datasheet(PDF) 29 Page - ams AG

Part # AS3658
Description  Power and Audio Management Unit for Portable Devices
PDF  158 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS3658 Datasheet(HTML) 29 Page - ams AG

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www.austriamicrosystems.com
Revision 1v13
28 - 157
AS3658
Data Sheet Confidential - Detail ed Descri ption-Power Management Functions
8.2.2 Low voltage Current Sink (CURR1_GPIO1 … CURR4_GPIO4)
CURR1_GPIO1 … CURR4_GPIO4 can be controlled individually. Each one can sink up to 38.25mA. The voltage on
the current sinks must not exceed the supply VCURR_GPIO (can be connected e.g. to VSUPPLY).
The low voltage current sinks and the gpio pins share the same pins (see General Purpose Input / Output
(CURR1_GPIO1 … CURR4_GPIO4) on page 30) for enabling/disabling of the current sinks / gpio functions.
Table 18. Current Sinks Characteristics
Symbol
Parameter
Min
Typ
Max
Unit
Note
Table 19. CURR1 Current sink current Bit definition
Addr: 41
CURR1 control
This register controls the mode of the curr1 current sinks
Bit
Bit Name
Default Access
Description
Table 20. CURR2 Current sink current Bit definition
Addr: 42
CURR2 control
This register controls the mode of the curr2 current sinks
Bit
Bit Name
Default Access
Description
ICURR1,2,3,4
CURR1_GPIO1....
CURR4_GPIO4
current, 00h-1Fh
0
38.25
mA
For V(CURRx_GPIOx) > 0.2V
resolution = 0.15mA,
each current sink
Δ
absolute Accuracy
-5
+5
%
All Current sinks
VCurr1,2,3,4
Voltage compliance
0.2
V(VCU
RR)
V
during normal operation
7:0
curr1_current
(00)h
R/W
Defines the current into CURR1_GPIO1 if GPIO1_Mode =
011b and output enabled (e.g. GPIO1=1)
00h
power down (default state)
01h
0.15mA (LSB)
....
FFh
38.25mA
7:0
curr2_current
(00)h
R/W
Defines the current into CURR2_GPIO2 if GPIO2_Mode =
011b and output enabled (e.g. GPIO2=1)
00h
power down (default state)
01h
0.15mA (LSB)
....
FFh
38.25mA



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