threshold. Open drain output. Connect a pull-up resistor to any supply
voltage up to 5.5V.
Ground connection pin.
RESET active-high output. This CMOS push-pull signal is the logical
inverse of RESET.
Manual reset input pin. Active low. Pull low to force a reset.
Watchdog input pin. Triggers a reset if it remains in a steady state for
the duration of the watchdog timer period.
Input voltage pin.
1
1
1
RESET
2
N/A
3
4
5
2
3
4
N/A
5
2
3
N/A
4
5
GND
RESET
MR
WDI
VCC
Pin Configuration
5-lead SOT23
(Top View)
RESET
GND
MR
1
5
VCC
2
3
4
WDI
AAT3510
AAT3517
5-lead SOT23
(Top View)
RESET
GND
RESET
1
5
5-lead SOT23
(Top View)
VCC
RESET
GND
1
5
VCC
2
2
3
4
MR
RESET
3
4
WDI
AAT3515
AAT3518
2
www.analogictech.com
3510.2011.08.1.91
PRODUCT DATASHEET
AAT3510/5/7/8
PowerManager
TM
Absolute Maximum Ratings
1
T
A
= 25°C, unless otherwise noted.
Symbol
V
CC
V
MR
, V
WDI
V
RESET
I
VCC
, I
MR
, I
WDI
I
RESET
dV
CC
/dt
T
J
Micropower µP Reset with Watchdog Timer
Description
V
CC
to GND
MR, WDI to GND
RESET to GND (Push-Pull or Bidirectional Output)
RESET to GND (Open Drain Output)
Maximum Continuous Input Current
RESET/RESET Output Current
Rate of Rise of V
CC
Operating Junction Temperature Range (-40°C to +150°C)
Max
-0.3 to 6
-0.3 to V
CC
+ 0.3
-0.3 to 6
20
100
150
Units
V
mA
V/µs
°C
Thermal Information
2
Symbol
Q
JA
P
D
Description
Maximum Thermal Resistance
Maximum Power Dissipation
Value
190
526
Units
°C/W
mW
1. Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at conditions other than the operating conditions
specified is not implied.
2. Mounted on an FR4 board.
3510.2011.08.1.91
www.analogictech.com
3
PRODUCT DATASHEET
AAT3510/5/7/8
PowerManager
TM
Electrical Characteristics
V
CC
= 2.5V to 5.5V, T
A
= -40°C to +85°C
1
, unless otherwise noted. Typical values are at T
A
= 25°C.
Symbol
V
CC
I
CC
Micropower µP Reset with Watchdog Timer
Description
Operating Voltage Range
Supply Current
Conditions
T
A
= -40°C to +85°C
AAT3510/7/8: MR & WDI
Unconnected
AAT3515:
MR Unconnected
T
A
= 25°C
T
A
= -40 to +85°C
-40°C < T
A
< +85°C
V
CC
V
CC
V
CC
V
CC
=
=
=
=
3.6V
5.5V
3.6V
5.5V
Min
1
Typ
5
6
Max
5.5
15
18
15
18
V
THNOM
+
1.5%
V
THNOM
+
2.5%
Units
V
µA
V
TH
Reset Threshold Voltage
Reference Voltage Temperature
Coefficient
Reset Active Timeout Period
V
THNOM
-
1.5%
V
THNOM
-
2.5%
V
TH
V
T
C
t
RP
±40
20
140
28
200
40
40
280
ppm/°C
ms
µs
AAT351xIGV-xx-B-x-T1
AAT351xIGV-xx-C-x-T1
T
RD
V
CC
to RESET Delay
V
CC
Falling at 1mV/µs
Push/Pull RESET Output (AAT3510, 3515, 3518)
V
CC
≥ 1.0V, I
SINK
= 50µA
V
CC
≥ 1.2V, I
SINK
= 100µA
V
OL
RESET Low Output Voltage
V
CC
≥ 2.7V, I
SINK
= 1.2mA
V
CC
≥ 4.5V, I
SINK
= 3.2mA
V
CC
≥ 2.7V, I
SOURCE
= 500µA
V
OH
RESET High Output Voltage
V
CC
≥ 4.5V, I
SOURCE
= 800µA
V
CC
≥ 2.7V, I
SINK
= 1.2mA
RESET Low Output Voltage
V
CC
≥ 4.5V, I
SINK
= 3.2mA
V
OH
V
CC
≥ 1.8V, I
SOURCE
= 150µA
RESET High Output Voltage
V
CC
≥ 2.7V, I
SOURCE
= 500µA
V
CC
≥ 4.5V, I
SOURCE
= 800µA
0.3
0.4
0.8 x V
CC
V
CC
- 1.5
0.3
0.4
0.8 x V
CC
V
CC
- 1.5
V
1. Over-temperature limits are guaranteed by design, not production tested.
4
www.analogictech.com
3510.2011.08.1.91
PRODUCT DATASHEET
AAT3510/5/7/8
PowerManager
TM
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
Micropower µP Reset with Watchdog Timer
Min
Typ
Max
Units
Open-Drain RESET Output (AAT3517, 3518)
V
OL
RESET Low Output Voltage
0.3
0.4
1.0
71
1.12
0.3 x V
CC
WDI = V
CC
, Time Average
V
WDI
= 0, Time Average
120
-15
0.8 x V
CC
160
V
µA
102
1.6
50
153
2.4
V
µA
ms
s
ns
I
D(OFF)
Reset Leakage Current
Watchdog Input (AAT3510, 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 Current
4
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
-20
0.3 x V
CC
Manual RESET Input (3515)
V
IL
MR Input Threshold
MR Input Threshold
MR Input Pulse Width
MR Glitch Rejection
V
IH
MR Internal Pull-Up Resistance
MR to Reset Delay
0.7 x V
CC
1
T
A
= 25°C
V
CC
= 5V
35
100
52
230
75
V
µs
ns
kW
ns
1.
2.
3.
4.
Over-temperature limits are guaranteed by design, not production tested.
Watchdog timeout period C is not available on AAT3518.
WDI is internally serviced within the watchdog period if WDI is left unconnected.
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
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