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AS3685A Datasheet(PDF) 19 Page - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS

Part No. AS3685A
Description  Ultra Small High Efficiency 1000mA Charge Pump
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Maker  TAOS [TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS]
Homepage  http://www.taosinc.com
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AS3685A Datasheet(HTML) 19 Page - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS

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AS3685A/AS3685B
Datasheet
www.austriamicrosystems.com/
AS3685
(ptr)
Revision 2.2
18 - 24
9
Pinout and Packaging
9.1 DFN10 3x3mm
9.1.1
Pin Assignments DFN10 3x3mm
Figure
27 –Pin Assignments DFN10 3x3mm
9.1.2 Pin Descriptions DFN10 3x3mm
Table
11 – Pin Type Descriptions DFN10 3x3mm
Pin Type
Description
AI/O
Analog Pin
DI
Digital Input
S
Supply Pin
Table
12 – Pin Descriptions DFN10 3x3mm
Pin Number
Pin Name
Type
Description
1
C2-
AI/O
Flying Capacitor 2 connection – connect 1
μF ceramic
capacitor CFLY2 between C2- and C2+
2
VBAT
S
Battery Supply Voltage
3
C1+
AI/O
Flying Capacitor 1 connection – connect 1
μF ceramic
capacitor CFLY1 between C1- and C1+
4
VCP
AI/O
Charge Pump Output voltage – connect flash LED anode
to this pin and add CVCP capacitor with 2.2
μF to VSS
5
EN1
DI
Digital Control Signal EN1
6
ISET
AI/O
Current Generator input pin – connect current set resistor
RISET between this pin and VSS (and optional RTXMASK)
7
EN2
DI
Digital Control Signal EN2
8
C2+
AI/O
Flying Capacitor 2 connection – connect 1
μF ceramic
capacitor CFLY2 between C2- and C2+
9
ILED
AI/O
Current Source input pin – connect flash LED cathode to
this pin
10
C1-
AI/O
Flying capacitor 1 connection – connect 1
μF ceramic
capacitor CFLY1 between C1- and C1+
Exposed Pad
VSS
S
Ground Connection – a proper thermal connection with
several vias to the ground plane is recommended
C1+ C1- C2+ C2-
VCP
ILED
AS3685A
AS3685B
ISET
VBAT
EN1
EN2
VSS
1
2
3
4
5
6
7
8
9
10
Exposed Pad


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