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AAT3511 Schematic ( PDF Datasheet ) - AAT

Teilenummer AAT3511
Beschreibung (AAT3510 - AAT3519) Micropower uP Reset
Hersteller AAT
Logo AAT Logo 




Gesamt 11 Seiten
AAT3511 Datasheet, Funktion
AAT3510/1/2/3/4/5/6/7/8/9
Micropower µP Reset with Watchdog Timer
General Description
Features
PoSwmearrMtSawnaitgcehr™™
The AAT351x PowerManager products are mem-
bers of AnalogicTech's Total Power Management
IC™ (TPMIC™) product family. This family of
microprocessor reset circuits provides the ultimate
in versatility, allowing system designers full cus-
tomization of the µP monitor and reset function
without any additional components. The AAT351x
family offers several combinations of threshold
voltage, watchdog timeout period, reset active peri-
od, and output drive configurations, which are all
factory-programmed options. All devices are avail-
able in 32 reset threshold voltages from 2.6V up to
5V, with three watchdog timeout periods from
6.3ms to 1600ms and three reset timeouts from
1ms up to 140ms. Available output configurations
are active low push-pull, active low open drain,
active low bi-directional, and active high push-pull.
• Tight Voltage Tolerance: ±1.5%
• Low Quiescent Current: 5µA
• Guaranteed Reset Valid Down to 1V
• 32 Voltage Options from 2.6V to 5.0V
• Three Reset Active Period Options:
— 1ms, 20ms, 140ms
• Three Watchdog Timeout Period Options:
— 6.3ms, 102ms, 1600ms
• Four Output Options:
— Open Drain
— Inverting
— Non-Inverting
— Bi-Directional
• Low Temperature Coefficient: 100ppm/°C
• 5-Pin SOT23 Package
The AAT351x family is designed to ignore fast neg-
ative transients on VDD and to ensure that reset
outputs remain valid down to 1V.
Applications
• Critical µP and µC Supply Monitoring
The AAT351x family is available in the Pb-free, www.DataSheet4U.com Embedded Control Systems
space-saving 5-pin SOT23 surface mount package
• Industrial Controllers
and is specified over the -40 to +85°C temperature
• Intelligent Instruments
range.
• Notebook Computers
• Portable Electronics
• Power-On Reset Circuits
Typical Application
V DD
VCC
AAT351x
RESET
(RESET)
GND
WDI
RESET
INPUT
VDD
µP
I/O LINE
3510.2006.03.1.7
1






AAT3511 Datasheet, Funktion
AAT3510/1/2/3/4/5/6/7/8/9
Micropower µP Reset with Watchdog Timer
Typical Characteristics
Unless otherwise noted, VIN = 3V, TA = 25°C.
Supply Current vs. Temperature
10
9
8 VCC = 5V
7
6
5 VCC = 3V
4
3
2 VCC = 1V
1
0
-40 -20 0 20 40 60 80 100
Temperature (°C)
VCC Falling to RESET Propagation
Delay vs. Temperature
160
140 VCC Falling at 1mV/µs
120 VRST - VCC = 100mV
100
80
60
40
20
0
-40 -20 0 20 40 60
Temperature (°C)
80 100
Manual Reset to RESET Propagation
Delay vs. Temperature
500
450 VCC = 5V
400
350
300
250
200
-40
-20
0 20 40 60
Temperature (°C)
80 100
Normalized Reset Timeout Period
vs. Temperature
1.05
1.04
1.03
1.02
1.01
1.00
0.99
0.98
0.97
0.96
0.95
-40
-20
0 20 40 60
Temperature (°C)
80 100
Normalized Watchdog Timeout Period
vs. Temperature
1.05
1.04
1.03
1.02
1.01
1.00
0.99
0.98
0.97
0.96
0.95
-40
-20
0 20 40 60
Temperature (°C)
80 100
6
Maximum VCC Transient Duration vs.
Reset Threshold Overdrive
80
70
60
50
40
30 VRST = 2.63V
20
10
0
10
100 1000
Reset Threshold Overdrive (mV) VRST - VCC
3510.2006.03.1.7

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