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 +85°C1, unless otherwise noted. Typical values are at TA = 25°C.
Symbol Description
Conditions
Min
Typ
Max
Units
VCC
Operating Voltage Range
TA = -40°C to +85°C
AAT3510/1/2/3/4/7/8:
1
5.5
15
18
15
18
V
VCC = 3.6V
5
6
MR & WDI Unconnected VCC = 5.5V
ICC
Supply Current
µA
AAT3515/6/9:
MR Unconnected
TA = 25°C
VCC = 3.6V
VCC = 5.5V
VTHNOM-1.5% VTH VTHNOM+1.5%
VTHNOM-2.5% VTH VTHNOM+2.5%
VTH
TC
Reset Threshold Voltage
V
TA = -40 to +85°C
Reference Voltage
Temperature Coefficient
-40°C < TA < +85°C
±40
ppm/°C
AAT351xIGV-xx-A-x-T1
AAT351xIGV-xx-B-x-T1
AAT351xIGV-xx-C-x-T1
VCC Falling at 1mV/µs
1
1.4
28
2
Reset Active Timeout
Period
tRP
20
40
ms
µs
140
200
40
280
TRD
VCC to RESET Delay
Push/Pull RESET Output (AAT3510, 3512, 3513, 3514, 3515, 3516, 3518, 3519)
VCC ≥ 1.0V, ISINK = 50µA
VCC ≥ 1.2V, ISINK = 100µA
0.3
0.3
0.3
0.4
VOL
RESET Low Output Voltage
V
V
VCC ≥ 2.7V, ISINK = 1.2mA
VCC ≥ 4.5V, ISINK = 3.2mA
VCC ≥ 2.7V, ISOURCE = 500µA
VCC ≥ 4.5V, ISOURCE = 800µA
VCC ≥ 2.7V, ISINK = 1.2mA
VCC ≥ 4.5V, ISINK = 3.2mA
VCC ≥ 1.8V, ISOURCE = 150µA
0.8 x VCC
VCC - 1.5
VOH
RESET High Output Voltage
RESET Low Output Voltage
0.3
0.4
VOH
0.8 x VCC
0.8 x VCC
VCC - 1.5
V
RESET High Output Voltage VCC ≥ 2.7V, ISOURCE = 500µA
VCC ≥ 4.5V, ISOURCE = 800µA
Bidirectional RESET Output (AAT3511, 3514, 3516)
Transition Flip-Flop Setup
tS
400
ns
ns
V
Time2
VCC = 3.0V, CL = 120pF
333
333
666
666
VCC = 5.0V, CL = 200pF
VCC = 3.0V, CL = 250pF
VCC = 5.0V, CL = 400pF
tR
RESET Output Rise Time3
Active Pull-Up Enable
Threshold
VCC = 5.0V
0.4
4.2
0.65
VPTH
RESET Active Pull-Up
Current
VCC = 5.0V
20
mA
RESET Pull-Up Resistance
4.7
5.2
kΩ
1. Over-temperature limits are guaranteed by design, not production tested.
2. This is the minimum time RESET must be held low by an external pull-down source to set the active pull-up flip-flop.
3. Measured from RESET VOL to (0.8 x VCC), open circuit output.
4
3510.2006.03.1.7
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
