Advanced Analog Technology, Inc.
AAT1109A
Electrical Characteristics,
V
DD
= 3.3V (Unless Otherwise Specified) (See Note 1)
Oscillator
Parameter
Test Condition
Min
Typ
Oscillation frequency
Frequency variation with
temperature
Frequency input stability
f
OSC
C
T
= 270pF, R
T
= 4.2k
Ω
400
500
5
Max Unit
600 KHz
f
dT
f
dV
V
DD
= 2.6V to 6.5V
%
%
1
Under-voltage Protection
Parameter
Test Condition
Min
Typ
Max
Unit
Upper threshold voltage
Lower threshold voltage
Hysteresis ( V
UPH
– V
UPL
)
V
UPH
V
UPL
V
HYS
T
A
= 25
o
C
T
A
= 25
o
C
T
A
= 25
o
C
T
A
=25
o
C.
2.12 2.47
1.96 2.28
0.3
2.85
2.63
V
V
V
Note1 : Typical values of all parameters are specified at
Short Circuit Protection Control
Parameter
Test Condition
Min
Typ
Max
Unit
Input threshold voltage
Short-circuit detect threshold
voltage
Charging current
V
r1
1.16 1.262
1.16 1.262
Vscp=0v
-1.0
-1.5
1.36
1.36
-2.15
V
V
µA
V
r 2
I
SCP
Soft start
Parameter
Test Condition
Min
Typ
Max
Unit
Charging current
Voltage at soft start
completion
Ics
V
ts
Vscp=0v
-1.0
-1.5
-2.15
1.36
µA
V
1.16 1.262
Shun Down Control
Parameter
Test Condition
Min
Typ
Max
Unit
Shut down release voltage
Shut down enable voltage
V
sdh
V
sdl
2.0
0.5
V
V
–
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.
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V 0.1
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
