Analogic AAT3564 Nanopowerâ ¢ voltage detector Datasheet

AAT3560/2/4
NanoPower™ Voltage Detector
General Description
Features
The AAT3560/2/4 series of PowerManager products are part of AnalogicTech'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 lowcost, 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 is 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.
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The quiescent supply current is extremely low, typically 1µA , making it ideal for portable batteryoperated equipment.
Applications
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AAT3560/2/4 devices are available in a Pb-free,
3-pin SOT23 package and are specified over the
-40°C to +85°C operating temperature range.
PowerManager™
Input Voltage Range: 1.2V to 5.5V
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
Active Noise Suppression
Available Output Configurations:
— Open-Drain Output
— CMOS Active High Output
— CMOS Active Low Output
Temperature Range: -40°C to +85°C
3-Pin SOT23 Package
Battery Charger Circuits
Battery Packs
Data Acquisition Systems
Intelligent Instruments
Notebook Computers
Portable Electronics
Power Supplies
Typical Application
DC/DC
Converter
VCC
µP
Li-Ion
+
VCC
AAT3560
AAT3562 RESET
(RESET)
AAT3564
SUSPEND
GND
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1
AAT3560/2/4
NanoPower™ Voltage Detector
Pin Descriptions
Pin #
Symbol
Function
1
GND
2
RESET (RESET)
3
VCC
Ground
Reset output. See table below for output configurations.
Supply voltage (+1.2V to +5.5V).
Part Number Descriptions
SOT23-3 Part Number
Part Description
AAT3560
RESET Push Pull Active High
AAT3562
RESET Push Pull Active Low
AAT3564
RESET Open Drain, Active Low
Pin Configuration
SOT23-3
(Top View)
GND
1
3
(RESET) RESET
2
VCC
2
3560.2006.03.1.2
AAT3560/2/4
NanoPower™ Voltage Detector
Absolute Maximum Ratings1
TA = 25°C, unless otherwise noted.
Symbol
VCC
VRESET
IMAX
IRESET
TJ
TLEAD
Description
VCC 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
Value
Units
-0.3 to 5.5
-0.3 to VCC+0.3
-0.3 to 5.5
20
20
-40 to 150
300
V
mA
mA
°C
°C
Value
Units
200
320
°C/W
mW
V
Thermal Information2
Symbol
ΘJA
PD
Description
Maximum Thermal Resistance
Maximum Power Dissipation
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. Only one Absolute Maximum Rating should be applied at any one time.
2. Mounted on an FR4 board.
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3
AAT3560/2/4
NanoPower™ Voltage Detector
Electrical Characteristics
VIN = 5V; TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = 25°C; VCC = 5V for 4.63/4.38V
versions; VCC = 3.3V for 3.08/2.93V versions; VCC = 3.0V for 2.63V version; VCC = 2.5V for 2.32/2.2V versions.
Symbol Description
VCC
Operation Voltage
IQ
Quiescent Current
VTH
RESET Threshold (Table 1)
dVTH/°C
RESET Threshold Tempco
VOL
RESET Low Output Voltage
AAT3562, AAT3564
VOH
VOL
VOH
IDOFF
4
RESET High Output Voltage,
AAT3562
RESET Low Output Voltage
AAT3560
RESET High Output Voltage
AAT3560
RESET Leakage Current,
AAT3564
Conditions
Min
TA = 0°C to +70°C
TA = -40°C to +85°C
VCC = 3V
VCC = 5.5V
TA = 25°C
TA = -40°C to +85°C
1.0
1.2
ISINK = 1.2mA, VCC = VTH(min),
VTH ≤ 3.08V, RESET Asserted
ISINK = 3.2mA, VCC = VTH(min),
VTH > 3.08V, RESET Asserted
ISOURCE = 800µA, VTH > 3.08V,
VCC > VTH (max)
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
ISOURCE = 500µA, VCC >
2.1V, RESET Asserted
ISOURCE = 50µA, VCC >
1.2V, RESET Asserted
VCC > VTH
Typ
Max
Units
5.5
V
5.5
0.85
2
µA
1.05
3
VTH - 1.5% VTH VTH+1.5%
V
VTH - 2.5% VTH VTH+2.5%
40
ppm/°C
0.3
V
0.4
VCC -1.5
V
0.8 VCC
0.3
V
0.4
0.8VCC
V
0.8VCC
1
µA
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AAT3560/2/4
NanoPower™ Voltage Detector
Typical Characteristics
VIN = 5V; TA = 25°C, unless otherwise noted.
Normalized Reset Threshold
vs. Temperature
Supply Current vs. Temperature
VCC = 5V
1.20
Normalized Threshold
Supply Current (µA)
1.40
1.00
0.80
VCC = 3V
0.60
0.40
0.20
0.00
-40
-20
0
20
40
60
1.003
1.002
1.001
1.000
0.999
0.998
0.997
80
-40
Temperature (°C)
20
40
60
80
Maximum Transient Duration
vs. Reset Threshold Overdrive
400
30
25
Maximum Transient
Duration (µs)
Reset Propagation Delay (µs)
0
Temperature (°C)
Power-Down Reset Propagation
Delay vs. Temperature
VOD = 10mV
20
15
10
VOD = 100mV
5
0
-40
-20
350
300
250
200
150
100
50
0
-20
0
20
40
Temperature (°C)
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60
80
1
10
100
1000
Reset Threshold Overdrive,
VTH - VCC (mV)
5
AAT3560/2/4
NanoPower™ Voltage Detector
Functional Block Diagram
VCC
+
RESET (RESET)
-
+
-
VREF
GND
Functional Description
General
The AAT3560 series of NanoPower voltage detectors monitor a system power supply and assert an
output signal (low for AAT3562 and AAT3564; high
for AAT3560) when the supply voltage drops 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 undefined.
When the input voltage rises above the factory-programmed threshold, the output signal will resume
its inactive state. An active noise-suppression circuit in the AAT3560/2/4 gives the output excellent
immunity from power supply transients. See graph
titled “Maximum Transient Duration vs. Reset
Threshold Overdrive” for further information.
VIN
Minimum Operating
Voltage
Detection Voltage
Level
Ground
Output
Voltage
Ground
Output Voltage
Undefined
Figure 1: AAT3562 Timing Diagram.
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AAT3560/2/4
NanoPower™ Voltage Detector
Factory-Trimmed Reset Thresholds1 and Ordering Information
Reset Threshold Voltage, VTH (V)
Ordering
Part Number2
AAT3560IGY-2.20-T1
AAT3562IGY-2.20-T1
AAT3562IGY-2.30-T1
AAT3560IGY-2.50-T1
AAT3562IGY-2.50-T1
AAT3562IGY-2.70-T1
AAT3562IGY-3.10-T1
Package
Marking Code3
EBXYY
FWXYY
FXXYY
ECXYY
IPXYY
FOXYY
KOXYY
TA = 25°C
TA = -40°C to +85°C
MIN
TYP
MAX
MIN
MAX
2.167
2.200
2.233
2.145
2.255
2.266
2.300
2.335
2.243
2.358
2.463
2.500
2.538
2.438
2.563
2.660
3.054
2.700
3.100
2.741
3.147
2.633
3.023
2.768
3.178
All AnalogicTech products are offered in Pb-free packaging. The term “Pb-free” means
semiconductor products that are in compliance with current RoHS standards, including
the requirement that lead not exceed 0.1% by weight in homogeneous materials. For more
information, please visit our website at http://www.analogictech.com/pbfree.
1 Contact local sales office for custom trim options.
2. Sample stock is generally held on part numbers listed in BOLD.
3. XYY = assembly and date code.
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AAT3560/2/4
NanoPower™™ Voltage Detector
Package Information
SOT23-3
2.37 ± 0.27
1.30 ± 0.10
2.92 ± 0.12
0.95 BSC
4° ± 4°
0.14 ± 0.06
0.96 ± 0.21
0.86 ± 0.16
0.075 ± 0.075
1.90 BSC
0.40 ± 0.10 × 3
0.50 ± 0.10
0.54 REF
All dimensions in millimeters.
© Advanced Analogic Technologies, Inc.
AnalogicTech cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in an AnalogicTech product. No circuit patent licenses, copyrights, mask work rights,
or other intellectual property rights are implied. AnalogicTech reserves the right to make changes to their products or specifications or to discontinue any product or service without notice.
Customers are advised to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold
subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. AnalogicTech
warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with AnalogicTech’s standard warranty. Testing and other quality control techniques are utilized to the extent AnalogicTech deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed.
Advanced Analogic Technologies, Inc.
830 E. Arques Avenue, Sunnyvale, CA 94085
Phone (408) 737-4600
Fax (408) 737-4611
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3560.2006.03.1.2
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