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AAT3515

Analogic Tech AAT3510, AAT3511, AAT3512, AAT3513, AAT3514 Service Manual

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AAT3510/1/2/3/4/5/6/7/8/9
Micropower µP Reset with Watchdog Timer
3510.2004.08.1.4 1
General Description
The AAT351x PowerManager™ products are members of AnalogicTech™'s Total Power Management IC™ product family. This family of Microprocessor Reset Circuits provides the ulti­mate in versatility, allowing system designers full customization 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 peri­od and output drive configurations, which are all factory programmed options. All devices are avail­able in 32 reset threshold voltages from 2.6V up to 5V, with three watchdog timeout periods from
The AAT351x family is designed to ignore fast neg­ative transients on VDDand to ensure that Reset outputs remain valid down to 1V.
The AAT351x family is available in the space saving 5-pin SOT23 surface mount package and is speci­fied over the -40 to +85°C temperature range.
Features
• Tight voltage tolerance: ±1.5%
• Low quiescent current: 5µA
• Guaranteed Reset Valid down to 1V
• 32 voltage options from 2.6V to 5.0V
• 3 Reset active period options
• 1ms, 20ms, 140ms
• 3 Watchdog timeout period options
• 6.3ms, 102ms, 1600ms
• 4 output options:
• Open drain
• Inverting
• Non-inverting
• Bi-directional
• Low Tempco: 100ppm/°C
• 5-pin SOT23 package
Applications
• Notebook Computers
• Portable Electronics
• Industrial Controllers
• Intelligent Instruments
• Critical µP and µC Supply Monitoring
• Power-On reset circuits
• Embedded Control Systems
Typical Application
PowerManager
™
V
DD
V
CC
RESET
AAT351x
GND
(RESET)
RESET INPUT
I/O LINEWDI
V
DD
µ
P
AAT3510/1/2/3/4/5/6/7/8/9
Micropower µP Reset with Watchdog Timer
2 3510.2004.08.1.4
Pin Descriptions
Pin Configuration
Pin #
AAT3510 AAT3512 AAT3513 AAT3515 AAT3511 AAT3514 AAT3516 AAT3517 AAT3518 AAT3519
Symbol Function
1 N/A 1 1 RESET AAT3510/13/15: RESET output goes low whenever V
DD
falls below the reset threshold. CMOS push-pull Output AAT3511/14/16: RESET output goes low whenever V
DD
falls below the reset threshold. Bidirectional CMOS push­pull Output intended to interface directly to microproces­sors with bi-directional resets
AAT3517/18/19: RESET output goes low whenever V
DD
falls below the reset threshold. Open drain output. Connect a pull-up resistor to any supply voltage up to 5.5V
2 2 2 2 GND Ground connection pin
1 3 3 RESET RESET active-high output. This CMOS push-pull signal is
the logical inverse of RESET. 3 3 N/A 4 MR Manual reset input pin. Active low. Pull low to force a reset. 4 4 4 N/A WDI Watchdog input pin. Triggers a reset if it remains in a
steady state for the duration of the watchdog timer period. 5555V
CC
Input voltage pin
RESET
GND
MR
RESET
GND
RESET
5-lead SOT23 5-lead SOT23
(Top View)
1
2
3
AAT3510 AAT3511
5
V
CC
RESET
GND
4
WDI
RESET
(Top View)
1
2
3
AAT3513 AAT3514
AAT3517 AAT3518
5-lead SOT23 5-lead SOT23
MR
(Top View)
1
2
3
(Top View)
1
2
3
5
V
CC
RESET
GND
4
MR
AAT3512AAT3515 AAT3516 AAT3519
5
V
CC
4
WDI
5
V
CC
4
WDI
AAT3510/1/2/3/4/5/6/7/8/9
Micropower µP Reset with Watchdog Timer
3510.2004.08.1.4 3
Absolute Maximum Ratings (T
A
=25°C unless otherwise noted)
Note: 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.
Thermal Information
Note 1: Mounted on FR4 board
Electrical Characteristics (V
CC
= 2.5V to 5.5V, TA= -40 to +85°C 1unless otherwise noted.
Typical values are at TA=25°C )
Symbol Description Conditions Min Typ Max Units
V
CC
Operating Voltage Range TA= -40°C to +85°C 1 5.5 V
AAT3510/1/2/3/4/7/8: VCC= 3.6V 5 15 MR & WDI unconnected VCC= 5.5V 6 18
I
CC
Supply Current
AAT3515/6/9: V
CC
= 3.6V 15
µA
MR unconnected VCC= 5.5V 18
V
TH
Reset Threshold Voltage
T
A
= 25°C V
THNOM
-1.5% VTHV
THNOM
+1.5%
V
TA= -40 to +85°C V
THNOM
-2.5% VTHV
THNOM
+2.5%
T
C
Reference Voltage -40°C < TA< +85°C ±40 ppm/°C Temp Coeff
AAT351xIGV-xx-A-x-T1 1 1.4 2
t
RP
Reset Active Timeout
AAT351xIGV-xx-B-x-T1 20 28 40 ms
Period
AAT351xIGV-xx-C-x-T1 140 200 280
T
RD
VCCto RESET Delay VCCfalling at 1mV/µs 40 µs
Symbol Description Value Units
Θ
JA
Maximum Thermal Resistance
1
190 °C/W
P
D
Maximum Power Dissipation
1
526 mW
Symbol Description Max Units
V
CC
VCCto GND -0.3 to 6 V
VMR, V
WDI
MR, WDI to GND -0.3 to VCC+0.3 V
V
RESET
RESET to GND (Push-Pull or Bidirectional Output) -0.3 to VCC+0.3
V
RESET to GND (Open Drain Output) -0.3 to 6
I
VCC
, IMR, I
WDI
Maximum Continuous Input Current 20 mA
I
RESET
RESET/RESET Output Current 20 mA
dVCC/dt Rate of rise of V
CC
100 V/µs
T
J
Operating Junction Temperature Range (-40° to 150°C) 150 °C
AAT3510/1/2/3/4/5/6/7/8/9
Micropower µP Reset with Watchdog Timer
4 3510.2004.08.1.4
Electrical Characteristics (V
CC
= 2.5V to 5.5V, TA= -40 to +85ºC1unless otherwise noted.
Typical values are at TA=25°C )
Symbol Description Conditions Min Typ Max Units
Push/Pull RESET Output (AAT3510, 3512, 3513, 3514, 3515, 3516, 3518, 3519)
V
CC
≥ 1.0V, I
SINK
= 50µA 0.3
V
CC
≥ 1.2V, I
SINK
= 100µA 0.3
V
OL
RESET Low Output Voltage
V
CC
≥ 2.7V, I
SINK
= 1.2mA 0.3
V
V
CC
≥ 4.5V, I
SINK
= 3.2mA 0.4
V
OH
RESET High Output Voltage
V
CC
≥ 2.7V, I
SOURCE
= 500µA 0.8 x V
CC
V
V
CC
≥ 4.5V, I
SOURCE
= 800µA VCC- 1.5
V
CC
≥ 2.7V, I
SINK
= 1.2mA 0.3
RESET Low Output Voltage
V
CC
≥ 4.5V, I
SINK
= 3.2mA 0.4
V
OH
V
CC
≥ 1.8V, I
SOURCE
= 150µA 0.8 x V
CC
V
RESET High Output Voltage V
CC
≥ 2.7V, I
SOURCE
= 500µA 0.8 x V
CC
V
CC
≥ 4.5V, I
SOURCE
= 800µA VCC- 1.5
Bidirectional RESET Output (AAT3511, 3514, 3516)
t
S
Transition Flip-Flop Setup Time
2
400 ns
VCC= 3.0V, CL= 120pF 333
t
R
RESET Output Rise Time
3
VCC= 5.0V, CL= 200pF 333
ns
VCC= 3.0V, CL= 250pF 666 VCC= 5.0V, CL= 400pF 666
V
PTH
Active Pullup Enable Threshold VCC= 5.0V 0.4 0.65 V RESET Active Pullup Current VCC= 5.0V 20 mA
RESET Pullup Resistance 4.2 4.7 5.2 kΩ
Open-Drain RESET Output (AAT3517, 3518, 3519)
V
CC
≥ 1.0V, I
SINK
= 50µA 0.3
V
CC
≥ 1.2V, I
SINK
= 100µA 0.3
V
OL
RESET Low Output Voltage
V
CC
≥ 2.7V, I
SINK
= 1.2mA 0.3
V
V
CC
≥ 4.5V, I
SINK
= 3.2mA 0.4
I
D(OFF)
Reset Leakage Current 1.0 µA
Watchdog Input (AAT3510, 3511, 3512, 3513, 3514, 3517, 3518)
AAT351xIGV-xx-x-A-T1 4.3 6.3 9.3
t
WD
Watchdog Timeout Period AAT351xIGV-xx-x-B-T1 71 102 153
ms
AAT351xIGV-xx-x-C-T1
4
1.12 1.6 2.4 s
t
WDI
WDI Minimum Pulse Width VIL= 0.3 x VCC, VIH= 0.7 x V
CC
50 ns
V
IL
WDI Input Threshold
5
0.3 x V
CC
V
IH
WDI Input Threshold
5
0.8 x V
CC
V
I
WDI
WDI Input Current
6
WDI = VCC, time average 120 160
µA
V
WDI
= 0, time average -20 -15
AAT3510/1/2/3/4/5/6/7/8/9
Micropower µP Reset with Watchdog Timer
3510.2004.08.1.4 5
Note 1: Over-temperature limits are guaranteed by design, not production tested. Note 2: This is the minimum time RESET must be held low by an external pulldown source to set the active pullup flip-flop. Note 3: Measured from RESET V
OL
to (0.8 x VCC), Open Circuit Output.
Note 4: Watchdog timeout period C is not available on AAT3513, AAT3514, and AAT3518. Note 5: WDI is internally serviced within the watchdog period if WDI is left unconnected. Note 6: 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 active.
Symbol Description Conditions Min Typ Max Units
Manual RESET Input (AAT3510, 3511, 3512, 3515, 3516, 3517, 3519)
V
IL
MR Input Threshold 0.3 x V
CC
V
IH
MR Input Threshold 0.7 x V
CC
V
MR Input Pulse Width 1 µs MR Glitch Rejection 100 ns MR Internal Pullup Resistance T
A
= 25°C 35 52 75 kΩ
MR to Reset Delay V
CC
= 5V 230 ns
AAT3510/1/2/3/4/5/6/7/8/9
Micropower µP Reset with Watchdog Timer
6 3510.2004.08.1.4
Typical Characteristics
(Unless otherwise noted, VIN= 3V, TA= 25°C)
Maximum VCC Transient Duration vs.
Reset Threshold Overdrive
Vcc=5V
Vcc=3V
Supply Current vs. Temperature
10
9
8
7
6
5
4
3
2
Vcc=1V
1
Supply Current (µA)
0
-40 -20 0 20 40 60 80 100
Temperature (°C)
Manual Reset to RESET Propagation
Delay vs. Temperature
500
VCC=5V
450
400
350
300
250
Propagation Delay (ns)
200
-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
V
-Vcc=100mV
RST
100
80
60
40
20
0
-40 -20 0 20 40 60 80 100
Reset Propagation Delay (µs)
Temperature (°C)
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
Normalized Timeout Period
-40 -20 0 20 40 60 80 100
Temperature (°C)
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
Normalized Timeout Period
-40 -20 0 20 40 60 80 100
Temperature (°C)
80
70
60
50
40
30
V
=2.63V
RST
20
10
Transient Duration (µs)
0
10 100 1000
Reset Threshold Overdrive (mV) V
RST
-V
CC
AAT3510/1/2/3/4/5/6/7/8/9
Micropower µP Reset with Watchdog Timer
3510.2004.08.1.4 7
Typical Characteristics
(Unless otherwise noted, VIN= 3V, TA= 25°C)
Bidirectional Pullup Characteristic
PASSIVE
4.7kΩ PULLUP 2V/div
RESET, ACTIVE PULLUP 2V/div
RESET, INPUT 5V/div
INPUT
74HC05
+5V
4.7k
100pF
200ns/div
INPUT
74HC05
100pF
RESET
MR
+5V
V
CC
GND
AAT3510/1/2/3/4/5/6/7/8/9
Micropower µP Reset with Watchdog Timer
8 3510.2004.08.1.4
Functional Block Diagram
Note 1: MR pin available on AAT3510/1/2/5/6/7/9
Note 2: WDI pin avaliable on AAT3510/1/2/3/4/7/8
Note 3: RESET pin available on AAT3510/1/3/4/5/6/7/8/9
Note 4: RESET pin available on AAT3512/3/4/5/6/8/9
V
CC
V
CC
1
MR
2
WDI
Watchdog
Timer
Detector
Reset
Generator
V
REF
RESET
RESET
3
4
Watchdog
Timer
GND
AAT3510/1/2/3/4/5/6/7/8/9
Micropower µP Reset with Watchdog Timer
3510.2004.08.1.4 9
Factory Trimmed Reset Thresholds* and Ordering Information
Reset Active Period
A: T
R(MIN)
= 1ms
B: T
R(MIN)
= 20ms
C: T
R(MIN)
= 140ms
Watchdog Timeout Period
A: T
WD(NOM)
= 6.3ms
B: T
WD(NOM)
= 102ms
C: T
WD(NOM)
= 1600ms*
VDD Threshold Voltage
2.63: V
TH(NOM)
= 2.63V 3.90: V
TH(NOM)
= 3.9V
2.70: V
TH(NOM)
= 2.7V 4.00: V
TH(NOM)
= 4.0V
2.80: V
TH(NOM)
= 2.8V 4.10: V
TH(NOM)
= 4.1V
2.93: V
TH(NOM)
= 2.93V 4.20: V
TH(NOM)
= 4.2V
3.00: V
TH(NOM)
= 3.0V 4.38: V
TH(NOM)
= 4.3V
3.08: V
TH(NOM)
= 3.08V 4.40: V
TH(NOM)
= 4.38V
3.20: V
TH(NOM)
= 3.2V 4.50: V
TH(NOM)
= 4.5V
3.30: V
TH(NOM)
= 3.3V 4.63: V
TH(NOM)
= 4.63V
3.40: V
TH(NOM)
= 3.4V 4.70: V
TH(NOM)
= 4.7V
3.50: V
TH(NOM)
= 3.5V 4.80: V
TH(NOM)
= 4.8V
3.60: V
TH(NOM)
= 3.6V 4.90: V
TH(NOM)
= 4.9V
3.70: V
TH(NOM)
= 3.7V 5.00: V
TH(NOM)
= 5.0V
3.80: V
TH(NOM)
= 3.8V
* Watchdog timeout period C is not avaliable on AAT3513, AAT3514 and AAT3518.
AAT351x IGV - X.XX -X- X-T1
Watchdog Timeout (if applicable)
Reset Active Period
Threshold Voltage
AAT3510/1/2/3/4/5/6/7/8/9
Micropower µP Reset with Watchdog Timer
10 3510.2004.08.1.4
Ordering Information
Note: Sample stock is held on part numbers listed in bold. Note 1: XYY = date and assembly code.
Package Marking
1
Part Number (Tape and Reel)
SOT23-5 HVXYY AAT3510IGV-2.63-C-C-T1
SOT23-5 HUXYY AAT3510IGV-2.93-C-C-T1
SOT23-5 HGXYY AAT3510IGV-3.08-C-C-T1
SOT23-5 HHXYY AAT3510IGV-4.38-C-C-T1
SOT23-5 EWXYY AAT3511IGV-2.63-C-C-T1
SOT23-5 MYXYY AAT3512IGV-2.63-A-C-T1
SOT23-5 JOXYY AAT3512IGV-2.63-C-C-T1
SOT23-5 HFXYY AAT3513IGV-2.63-C-C-T1
SOT23-5 HEXYY AAT3515IGV-2.63-C-T1
SOT23-5 HIXYY AAT3515IGV-2.93-B-T1
SOT23-5 KLXYY AAT3515IGV-2.93-C-T1
SOT23-5 JNXYY AAT3515IGV-3.08-C-T1
SOT23-5 KMXYY AAT3515IGV-4.38-C-T1
SOT23-5 MFXYY AAT3515IGV-4.63-C-T1
SOT23-5 INXYY AAT3517IGV-2.63-C-C-T1
SOT23-5 LZXYY AAT3517IGV-2.8-B-C-T1
SOT23-5 IQXYY AAT3517IGV-2.93-C-C-T1
Package Information
SOT23-5
All dimensions in millimeters.
AAT3510/1/2/3/4/5/6/7/8/9
Micropower µP Reset with Watchdog Timer
3510.2004.08.1.4 11
2.85 ± 0.15
1.90 BSC
0.95 BSC
0.125
±
1.575
0.60 REF
10° ± 5°
0.40 ± 0.10
0.20
±
2.80
0.20
±
1.10
0.075 ± 0.075
0.25
±
1.20
0.15 ± 0.07
4° ± 4°
0.60 REF
0.45 ± 0.15 0.10 BSC
GAUGE PLANE
AAT3510/1/2/3/4/5/6/7/8/9
Micropower µP Reset with Watchdog Timer
12 3510.2004.08.1.4
Advanced Analogic Technologies, Inc.
830 E. Arques Avenue, Sunnyvale, CA 94085 Phone (408) 737-4600 Fax (408) 737-4611
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, and advise customers 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.
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