AAT3510/1/2/3/4/5/6/7/8/9
Micropower µP Reset with Watchdog Timer
Electrical Characteristics
V
CC
= 2.5V to 5.5V, T
A
= -40°C to +85ºC
1
, unless otherwise noted. Typical values are at T
A
= 25°C.
Symbol
Description
Conditions
V
CC
V
CC
V
CC
V
CC
≥
≥
≥
≥
1.0V,
1.2V,
2.7V,
4.5V,
I
SINK
I
SINK
I
SINK
I
SINK
=
=
=
=
50µA
100µA
1.2mA
3.2mA
Min
Typ
Max
0.3
0.3
0.3
0.4
1.0
Units
Open-Drain RESET Output (AAT3517, 3518, 3519)
V
OL
I
D(OFF)
RESET Low Output Voltage
V
Reset Leakage Current
AAT351xIGV-xx-x-A-T1
AAT351xIGV-xx-x-B-T1
AAT351xIGV-xx-x-C-T1
2
V
IL
= 0.3 x V
CC
, V
IH
= 0.7 x V
CC
4.3
71
1.12
0.3 x V
CC
WDI = V
CC
, Time Average
V
WDI
= 0, Time Average
120
-15
6.3
102
1.6
50
µA
Watchdog Input (AAT3510, 3511, 3512, 3513, 3514, 3517, 3518)
t
WD
t
WDI
V
IL
V
IH
I
WDI
Watchdog Timeout Period
WDI Minimum Pulse Width
WDI Input Threshold
3
WDI Input Threshold
3
WDI Input Current
4
9.3
153
2.4
ms
s
ns
V
µA
0.8 x V
CC
160
-20
0.3 x V
CC
Manual RESET Input (AAT3510, 3511, 3512, 3515, 3516, 3517, 3519)
V
IL
V
IH
MR
MR
MR
MR
MR
MR
Input Threshold
Input Threshold
Input Pulse Width
Glitch Rejection
Internal Pull-Up Resistance
to Reset Delay
0.7 x V
CC
1
T
A
= 25°C
V
CC
= 5V
35
100
52
230
75
V
µs
ns
kΩ
ns
1. Over-temperature limits are guaranteed by design, not production tested.
2. Watchdog timeout period C is not available on AAT3513, AAT3514, and AAT3518.
3. WDI is internally serviced within the watchdog period if WDI is left unconnected.
4. The WDI input current is specified as the average input current when the WDI input is driven high or low. The WDI input is designed
for a three-stated-output device with a 10µA maximum leakage current and capable of driving a maximum capacitive load of 200pF.
The three-state device must be able to source and sink at least 200µA when active.
3510.2006.03.1.7
5
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
