AAT3526/7/8
MicroPower™ Supervisory Circuit
with Manual Reset
Electrical Characteristics
VIN = 5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are TA = 25°C, VCC = 5V for 4.63/4.38V ver-
sions, VCC = 3.3V for 3.08/2.93V versions, VCC = 3.0V for 2.63V versions, and VCC = 2.5V for 2.32/2.2V versions.
Symbol Description
Conditions
Min
Typ
Max
Units
TA = 0°C to +70°C
1.0
1.2
5.5
5.5
3
VCC
IQ
Operation Voltage
Quiescent Current
RESET Threshold1
V
TA = -40°C to +85°C
VCC = 5.5V
1.05
0.85
µA
V
VCC = 3V
2
TA = 25°C
VTH - 1.5% VTH VTH + 1.5%
VTH
TA = -40°C to +85°C
VTH - 2.5% VTH VTH + 2.5%
∆VTH/°C RESET Threshold Tempco
40
15
ppm/°C
µs
tP
tRDY
tMR
RESET Propagation Delay
RESET Active Timeout Period
MR Minimum Pulse Width
MR Glitch Immunity
VCC = VTH to (VTH - 100mV)
150
10
250
400
ms
µs
MRGI
tMD
100
0.5
ns
MR to Reset Propagation Delay
µs
V
CC = VTH(MAX), VTH ≥ 4.38V
VCC = VTH(MAX), VTH < 4.38V
CC = VTH(MAX), VTH ≥ 4.38V
VCC = VTH(MAX), VTH < 4.38V
2.3
VIH
MR Input Threshold (High)
V
0.7 × VCC
V
0.8
0.25 × VCC
90
VIL
MR Input Threshold (Low)
MR Pull-Up Resistance
V
RMR
30
65
kΩ
I
SINK = 1.2mA, VCC = VTH(min)
VTH ≤ 3.08V, RESET Asserted
ISINK = 3.2mA, VCC = VTH(min)
VTH > 3.08V, RESET Asserted
SOURCE = 800µA, VTH > 3.08V,
,
0.3
0.4
RESET Low Output Voltage
AAT3526, AAT3528
VOL
V
,
I
VCC - 1.5
0.8 VCC
RESET High Output Voltage
AAT3526
VCC > VTH (max)
VOH
V
V
ISOURCE = 500µA, VTH ≤ 3.08V,
VCC > VTH (max)
ISINK = 1.2mA, VCC > VTH (max)
VTH ≤ 3.08V, RESET Not Asserted
ISINK = 3.2mA, VCC > VTH (max)
VTH > 3.08V, RESET Not Asserted
0.3
0.4
RESET Low Output Voltage
AAT3527
VOL
I
SOURCE = 500µA, VCC > 2.1V,
0.8VCC
0.8VCC
RESET High Output Voltage
AAT3527
RESET Asserted
VOH
V
ISOURCE = 50µA, VCC > 1.2V,
RESET Asserted
RESET Leakage Current,
AAT3528
IDOFF
VCC > VTH
1
µA
1. See Ordering Information for factory-trimmed reset thresholds.
4
3526.2006.03.1.6
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
