AAT3510/1/2/3/4/5/6/7/8/9
Micropower µP Reset with Watchdog Timer
Electrical Characteristics
VCC = 2.5V to 5.5V, TA = -40°C to +85ºC1, unless otherwise noted. Typical values are at TA = 25°C.
Symbol Description
Conditions
Min
Typ
Max
Units
Open-Drain RESET Output (AAT3517, 3518, 3519)
VCC ≥ 1.0V, ISINK = 50µA
VCC ≥ 1.2V, ISINK = 100µA
VCC ≥ 2.7V, ISINK = 1.2mA
VCC ≥ 4.5V, ISINK = 3.2mA
0.3
0.3
0.3
0.4
1.0
VOL
RESET Low Output Voltage
Reset Leakage Current
V
ID(OFF)
µA
ms
Watchdog Input (AAT3510, 3511, 3512, 3513, 3514, 3517, 3518)
AAT351xIGV-xx-x-A-T1
4.3
71
6.3
102
1.6
50
9.3
153
2.4
tWD
Watchdog Timeout Period
AAT351xIGV-xx-x-B-T1
AAT351xIGV-xx-x-C-T12
1.12
s
tWDI
VIL
WDI Minimum Pulse Width
WDI Input Threshold3
WDI Input Threshold3
VIL = 0.3 x VCC, VIH = 0.7 x VCC
ns
0.3 x VCC
VIH
0.8 x VCC
160
V
WDI = VCC, Time Average
VWDI = 0, Time Average
120
-15
IWDI
WDI Input Current4
µA
-20
Manual RESET Input (AAT3510, 3511, 3512, 3515, 3516, 3517, 3519)
VIL
MR Input Threshold
0.3 x VCC
V
MR Input Threshold
0.7 x VCC
MR Input Pulse Width
MR Glitch Rejection
1
µs
ns
kΩ
ns
VIH
100
52
MR Internal Pull-Up Resistance
MR to Reset Delay
TA = 25°C
CC = 5V
35
75
V
230
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
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
