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AS3685A Datasheet(PDF) 22 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) 22 Page - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS

 
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AS3685A/AS3685B
Datasheet
www.austriamicrosystems.com/
AS3685
(ptr)
Revision 2.2
21 - 24
9.2 WL-CSP 2x1.5mm (Wafer Level Chip Scale Package)
9.2.1 Pin Assignments WL-CSP 2x1.5mm
Figure
30 – WL-CSP 2x1.5mm Pin Assignments
9.2.2 Pin Descriptions WL-CSP 2x1.5mm
Table
13 – Pin Type Descriptions WL-CSP 2x1.5mm
Pin Type
Description
AI/O
Analog Pin
DI
Digital Input
S
Supply Pin
Table
14 – Pin Descriptions WL-CSP 2x1.5mm
Pin Number
Pin Name
Type
Description
A1
EN1
DI
Digital Control Signal EN1
A2
VSS
S
Ground Connection – a proper thermal connection to the
ground plane is recommended
A3
ISET
AI/O
Current Generator input pin – connect current set resistor
RISET between this pin and VSS (and optional RTXMASK)
B1
C1+
AI/O
Flying Capacitor 1 connection – connect 1
μF ceramic
capacitor CFLY1 between C1- and C1+
B2
VCP
AI/O
Charge Pump Output voltage – connect flash LED anode
to this pin and add CVCP capacitor with 2.2
μF to VSS
B3
EN2
DI
Digital Control Signal EN2
C1
VBAT
S
Battery Supply Voltage
C2
C2+
AI/O
Flying Capacitor 2 connection – connect 1
μF ceramic
capacitor CFLY2 between C2- and C2+
C3
ILED
AI/O
Current Source input pin – connect flash LED cathode to
this pin
D1
C2-
AI/O
Flying Capacitor 2 connection – connect 1
μF ceramic
capacitor CFLY2 between C2- and C2+
D2
C1-
AI/O
Flying capacitor 1 connection – connect 1
μF ceramic
capacitor CFLY1 between C1- and C1+
D3
VSS
S
Ground Connection – a proper thermal connection to the
ground plane is recommended
C1+ C1- C2+ C2-
VCP
ILED
AS3685A
AS3685B
ISET
VBAT
EN1
EN2
VSS
D1
D2
A2,D3
C1
C2
C3
B1
B2
B3
A1
A3


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