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AS3685A Datasheet(PDF) 4 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) 4 Page - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS

 
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AS3685A/AS3685B
Datasheet
www.austriamicrosystems.com/
AS3685
(ptr)
Revision 2.2
3 - 24
5
Characteristics
5.1 Absolute Maximum Ratings
Stresses beyond those listed in Table 1 may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated in Section 5
Electrical Characteristics is not implied.
Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Table
1 – Absolute Maximum Ratings
Symbol
Parameter
Min
Max
Unit
Note
VBATMAX
Maximum Supply Voltage
-0.3
7.0
V
IIN
Input Pin Current without causing
latchup
-25
+25
mA
At 25ºC, Norm: Jedec 17
TSTRG
Storage Temperature Range
-55
125
°C
Humidity
5
85
%
Non condensing
VESD
Electrostatic Discharge
-1000
1000
V
Norm: MIL 883 E Method 3015
1.14
W
DFN10 3x3mm, TA = 70
°C 1
PT
Total Continuous Power Dissipation
1.02
W
WL-CSP 2x1.5mm, TA = 70
°C 1
16.3
mW/
°C
DFN10 3x3mm
PDERATE
PT Derating Factor
2
14.7
mW/
°C
WL-CSP 2x1.5mm
TJUNC
Junction Temperature
150
°C
TBODY
Body Temperature during Soldering
260
°C
according to IPC/JEDEC J-
STD-020C
Notes:
1.
Depending on actual PCB layout and PCB used; for peak power dissipation during flashing see
document ‘AS3685 Thermal Measurements’
For 1A flash current see application notes ‘AN3685_1Aflash’ and ‘AN3685_1Aflash_thermal_1v0’.
2.
The PT derating factor changes the total continuous power dissipation, if the ambient temperature
is different to 70
°C. Therefore for e.g. 85°C calculate PT85°C = PT – PDERATE * (85°C – 70 °C)
5.2 Operating Conditions
Table
2 – Operating Conditions
Symbol
Parameter
Min
Typ
Max
Unit
Note
VBAT
Battery Supply Voltage
3.0
3.6
5.5
V
Supply voltage range
VBATFUNC
Battery Supply Voltage,
Functionally working
2.6
V
AS3685 functionally working,
but not all parameters fulfilled
0.4
A
Depending on load current
and charge pump mode
IBAT
Operating Current
2.0
A
Limited lifetime, max 20,000s
TAMB
Ambient Temperature
-30
25
85
°C
IOFF
Off mode current
1.0
4.0
μA
EN1 = 0, EN2 = 0;
VBAT<=4.2V


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