AAT3560/2/4
NanoPower Voltage Detector
General Description
The AAT3560 Series of PowerManager™ products
is a member of AATI's Total Power Management
IC™ (TPMIC™) product family. These voltage
detectors are ideal for monitoring voltage supplies
in portable systems, where extended battery life is
critical. They provide a low cost, reliable solution by
eliminating several external components. The
AAT3560 series operates by monitoring the system
power supply voltage. When the input voltage
drops below a fixed threshold, the device output
changes state depending upon configuration.
When the input voltage rises above the threshold,
the device output reverts back to the previous
state. The AAT3560 series are available with three
different output stages: AAT3560 push-pull active
high output, AAT3562 push-pull active low output
and AAT3564 open drain active low output.
The quiescent supply current is extremely low, typ-
ically 1µA , making it ideal for portable battery oper-
ated equipment.
The AAT3560/2/4 are available in a 3 pin SOT-23
package and are specified over -40 to 85°C oper-
ating temperature range..
Features
•
•
•
•
•
•
PowerManager
™
•
•
1.2V to 5.5V Input voltage range
Operates down to 1.2V
Extremely low quiescent current: less than 2µA
High accuracy detection threshold: ±1.5%
Monitor Power Supply Voltages
• Fixed thresholds from 2.2V to 4.6V
Available output configurations:
• Open-drain output
• CMOS active high output
• CMOS active low output
Temp range -40 to 85°C
3 pin SOT-23 package
Preliminary Information
Applications
•
•
•
•
•
•
•
Portable Electronics
Battery Packs
Battery Charger Circuits
Data Acquisition Systems
Power Supplies
Notebook Computers
Intelligent Instruments
Typical Application
DC/DC
Converter
V
CC
µP
+
Li Ion
V
CC
AAT3560
AAT3562
RESET
(RESET)
AAT3564
GND
SUSPEND
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AAT3560/2/4
NanoPower Voltage Detector
Pin Descriptions
AAT3560, 3562, 3564 (SOT23-3)
Pin #
1
2
3
Symbol
GND
RESET (RESET)
V
CC
Function
Ground
Reset output. See table below for output configurations.
Supply Voltage (+1.2V to +5.5V)
Part Number Descriptions
SOT23-3 Part Number
AAT3560
AAT3562
AAT3564
Part Description
RESET Push Pull Active High
RESET Push Pull Active Low
RESET Open Drain, Active Low
Pin Configuration
3-Pin SOT23
(Top View)
GND
(RESET) RESET
1
3
2
V
CC
2
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AAT3560/2/4
NanoPower Voltage Detector
Absolute Maximum Ratings
Symbol
V
CC
V
RESET
I
MAX
I
RESET
T
J
T
LEAD
(T
A
=25°C unless otherwise noted)
Value
-0.3 to 5.5
-0.3 to V
CC
+0.3
-0.3 to 5.5
20
20
-40 to 150
300
Description
V
CC
to GND
RESET to GND (Push-Pull Output)
RESET to GND (Open Drain Output)
Maximum Continuous Input Current
RESET/RESET Current
Operating Junction Temperature Range
Maximum Soldering Temperature (at Leads) for 10s
Units
V
V
mA
mA
°C
°C
Note: Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at con-
ditions other than the operating conditions specified is not implied. Only one Absolute Maximum rating should be applied at any one time.
Thermal Information
Symbol
Θ
JA
P
D
Description
Maximum Thermal Resistance
Maximum Power Dissipation
1
1
Value
200
320
Units
°C/W
mW
Note 1: Mounted on FR4 board.
Electrical Characteristics
(V
IN
= 5V, T
A
= -40 to 85°C unless otherwise noted. Typical values
are at T
A
=25°C, ,V
CC
= 5V for 4.63/4.38V versions, V
CC
= 3.3V for 3.08/2.93V versions, V
CC
= 3.0V for 2.63V
version and V
CC
= 2.5V for 2.32/2.2V versions )
Symbol Description
V
CC
I
Q
V
TH
dV
T
H/ºC
V
OL
V
OH
V
OL
Operation Voltage
Quiescent Current
RESET Threshold (Table 1)
RESET Threshold Tempco
RESET Low Output Voltage
AAT3562, AAT3564
RESET High Output Voltage, AAT3562
RESET Low Output Voltage
AAT3560
Conditions
T
A
= 0 to 70ºC
T
A
= -40 to 85ºC
V
CC
= 3V
V
CC
= 5.5V
T
A
= 25º C
T
A
= -40ºC to +85ºC
Min
1.0
1.2
Typ
Max
5.5
5.5
2
3
V
TH
+1.5%
V
TH
+2.5%
0.3
0.4
Units
V
µA
V
ppm/°C
V
V
V
0.85
1.05
V
TH
- 1.5% V
TH
V
TH
- 2.5% V
TH
40
V
OH
I
DOFF
RESET High Output Voltage
AAT3560
RESET Leakage Current, AAT3564
I
SINK
=1.6mA, V
CC
> 2.1V,
RESET asserted
I
SINK
=100µA, V
CC
>1.2V,
RESET asserted
I
SOURCE
= 800 µA
V
CC
-1.5
I
SINK
=1.2mA, V
CC
> 1.2V,
RESET not asserted
I
SINK
= 3.2mA, V
CC
> 4.5V,
RESET not asserted
I
SOURCE
= 500µA, V
CC
>
0.8V
CC
2.1V, RESET asserted
I
SOURCE
= 50µA, V
CC
>
0.8V
CC
1.2V, RESET asserted
V
CC
> V
TH
0.3
0.4
V
V
V
V
1
µA
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AAT3560/2/4
NanoPower Voltage Detector
Typical Characteristics
(Unless otherwise noted, V
IN
= 5V, T
A
= 25°C)
Normalized Reset Threshold
vs. Temperature
Normalized Threshold
40
60
80
Supply Current vs. Temperature
1.40
Supply Current (µA)
1.20
1.00
0.80
0.60
0.40
0.20
0.00
-40
-20
V
CC
=5V
1.003
1.002
1.001
1.000
0.999
0.998
0.997
-40
-20
0
20
40
60
80
V
CC
=3V
0
20
Temperature (°C)
Temperature (°C)
Power-Down Reset Propagation
Delay vs. Temperature
Reset Propagation Delay (µs)
30
25
20
15
10
5
0
-40
400
Maximum Transient Duration
vs. Reset Threshold Overdrive
Maximum Transient
Duration (µS)
350
300
250
200
150
100
50
0
1
10
100
1000
V
OD
=10mV
V
OD
=100mV
-20
0
20
40
60
80
Temperature (°C)
Reset Threshold Overdrive,
V
TH
-V
CC
(mV)
4
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AAT3560/2/4
NanoPower Voltage Detector
Functional Block Diagram
V
CC
+
RESET (RESET)
-
+
-
V
REF
GND
Functional Description
General
The AAT3560 series of Nanopower voltage detec-
tors, monitors a system power supply and asserts
an output signal (Low for AAT3562, AAT3564 and
High for AAT3560) when the supply voltage drops
V
IN
below a factory programmed threshold voltage.
The output signal will remain valid until the input
voltage falls below the Minimum Operating Voltage
of 1V. Below this value the output voltage is unde-
fined. When the input voltage rises above the fac-
tory programmed threshold, the output signal will
resume its inactive state.
Minimum Operating
Voltage
Output
Voltage
Detection Voltage
Level
Ground
Ground
Output Voltage
Undefined
Figure 1. AAT3562 Timing Diagram
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