AAT3520/2/4
MicroPower™ Microprocessor Reset Circuit
Electrical Characteristics
V
IN
= 5V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= 25°C; V
CC
= 5V for 4.63/4.38V
versions; V
CC
= 3.3V for 3.08/2.93V versions; V
CC
= 3.0V for 2.63V version; V
CC
= 2.5V for 2.32/2.2V versions.
Symbol
V
CC
I
Q
V
TH
∆V
TH
/°C
t
P
t
RDY
Description
Operation Voltage
Quiescent Current
RESET Threshold (Table 1)
RESET Threshold
Temperature Coefficient
RESET Propagation Delay
RESET Active Timeout
Period
Conditions
T
A
= 0ºC to +70ºC
T
A
= -40ºC to +85ºC
V
CC
= 5.5V
V
CC
= 3V
T
A
= 25ºC
T
A
= -40ºC to +85ºC
Min
1.0
1.2
Typ
Max
5.5
5.5
3
2
V
TH
+ 1.5%
V
TH
+ 2.5%
Units
V
µA
V
ppm/°C
µs
V
TH
- 1.5%
V
TH
- 2.5%
1.05
0.85
V
TH
V
TH
40
V
OL
V
OH
V
OL
V
OH
I
DOFF
V
CC
= V
TH
to (V
TH
- 100mV)
-50 Option
-200 Option
I
SINK
= 1.2mA, V
CC
= V
TH(min)
,
RESET Low Output Voltage V
TH
≤
3.08V, RESET Asserted
AAT3522, AAT3524
I
SINK
= 3.2mA, V
CC
= V
TH(min)
,
V
TH
>
3.08V, RESET Asserted
I
SOURCE
= 800µA, V
TH
>
3.08V,
RESET High Output Voltage V
CC
> V
TH (max)
AAT3522
I
SOURCE
= 500µA, V
TH
≤
3.08V,
V
CC
> V
TH (max)
I
SINK
= 1.2mA, V
CC
> V
TH (max)
,
RESET Low Output Voltage V
TH
≤
3.08V, RESET Not Asserted
AAT3520
I
SINK
= 3.2mA, V
CC
> V
TH (max)
,
V
TH
> 3.08V, RESET Not Asserted
I
SOURCE
= 500µA, V
CC
> 2.1V,
RESET High Output Voltage RESET Asserted
AAT3520
I
SOURCE
= 50µA, V
CC
> 1.2V,
RESET Asserted
RESET Leakage Current
V
CC
> V
TH
AAT3524
30
150
15
50
250
100
400
0.3
ms
V
0.4
V
CC
-1.5
V
0.8 V
CC
0.3
V
0.4
0.8V
CC
V
0.8V
CC
1
µA
4
3520.2006.03.1.2
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
