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AAT3514IGV-4.20-A-B-T1 [ANALOGICTECH]

Micropower uP Reset with Watchdog Timer; 微复位与看门狗定时器
AAT3514IGV-4.20-A-B-T1
型号： AAT3514IGV-4.20-A-B-T1
厂家： ADVANCED ANALOGIC TECHNOLOGIES    ADVANCED ANALOGIC TECHNOLOGIES
描述：

Micropower uP Reset with Watchdog Timer
微复位与看门狗定时器
文件： 总12页 (文件大小：158K)
中文：  中文翻译
下载：  下载PDF数据表文档文件
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AAT3510/1/2/3/4/5/6/7/8/9  
Micropower µP Reset with Watchdog Timer  
™  
PowerManager  
General Description  
Features  
The AAT351x PowerManager™ products are  
members of AnalogicTech™'s Total Power  
Management IC™ product family. This family of  
Microprocessor Reset Circuits provides the ulti-  
mate 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 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  
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  
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  
•
•
•
•
•
•
•
Notebook Computers  
The AAT351x family is available in the space saving  
5-pin SOT23 surface mount package and is speci-  
fied over the -40 to +85°C temperature range.  
Portable Electronics  
Industrial Controllers  
Intelligent Instruments  
Critical µP and µC Supply Monitoring  
Power-On reset circuits  
Embedded Control Systems  
Typical Application  
VDD  
V CC  
V DD  
RESET  
INPUT  
RESET  
(RESET)  
AAT351x  
µP  
WDI  
I/O LINE  
GND  
3510.2004.08.1.4  
1
AAT3510/1/2/3/4/5/6/7/8/9  
Micropower µP Reset with Watchdog Timer  
Pin Descriptions  
Pin #  
AAT3510 AAT3512 AAT3513 AAT3515  
AAT3511  
AAT3517  
AAT3514 AAT3516  
AAT3518 AAT3519 Symbol Function  
1
N/A  
1
1
RESET  
AAT3510/13/15: RESET output goes low whenever VDD  
falls below the reset threshold. CMOS push-pull Output  
AAT3511/14/16: RESET output goes low whenever VDD  
falls below the reset threshold. Bidirectional CMOS push-  
pull Output intended to interface directly to microproces-  
sors with bi-directional resets  
AAT3517/18/19: RESET output goes low whenever VDD  
falls below the reset 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.  
2
2
1
2
3
2
3
GND  
RESET  
3
4
3
4
N/A  
4
4
N/A  
MR  
WDI  
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  
5
5
5
5
VCC  
Pin Configuration  
5-lead SOT23  
(Top View)  
5-lead SOT23  
(Top View)  
5
5
1
1
VCC  
VCC  
RESET  
GND  
RESET  
2
3
2
3
GND  
MR  
4
4
WDI  
WDI  
RESET  
AAT3510  
AAT3511  
AAT3517  
AAT3513  
AAT3514  
AAT3518  
5-lead SOT23  
(Top View)  
5-lead SOT23  
(Top View)  
5
5
1
1
VCC  
MR  
VCC  
RESET  
GND  
RESET  
GND  
MR  
2
3
2
3
4
4
WDI  
RESET  
AAT3515  
AAT3516  
AAT3519  
AAT3512  
2
3510.2004.08.1.4  
AAT3510/1/2/3/4/5/6/7/8/9  
Micropower µP Reset with Watchdog Timer  
Absolute Maximum Ratings (TA=25°C unless otherwise noted)  
Symbol  
VCC  
VMR, VWDI  
Description  
VCC to GND  
MR, WDI to GND  
Max  
-0.3 to 6  
-0.3 to VCC+0.3  
Units  
V
V
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 VCC  
-0.3 to VCC+0.3  
VRESET  
V
-0.3 to 6  
20  
20  
100  
IVCC, IMR, IWDI  
IRESET  
mA  
mA  
V/µs  
°C  
dVCC/dt  
TJ  
Operating Junction Temperature Range (-40° to 150°C)  
150  
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  
Description  
Maximum Thermal Resistance  
Maximum Power Dissipation  
Value  
190  
526  
Units  
°C/W  
mW  
1
ΘJA  
PD  
1
Note 1: Mounted on FR4 board  
1
Electrical Characteristics (VCC = 2.5V to 5.5V, TA = -40 to +85°C unless otherwise noted.  
Typical values are at TA=25°C )  
Symbol Description  
Conditions  
Min  
1
Typ  
Max  
Units  
V
VCC  
Operating Voltage Range TA = -40°C to +85°C  
AAT3510/1/2/3/4/7/8:  
5.5  
15  
18  
15  
18  
VCC = 3.6V  
5
6
MR & WDI unconnected VCC = 5.5V  
AAT3515/6/9:  
MR unconnected  
TA = 25°C  
TA = -40 to +85°C  
-40°C < TA < +85°C  
ICC  
Supply Current  
µA  
VCC = 3.6V  
VCC = 5.5V  
VTHNOM-1.5% VTH VTHNOM+1.5%  
VTHNOM-2.5% VTH VTHNOM+2.5%  
±40  
VTH  
TC  
Reset Threshold Voltage  
V
Reference Voltage  
Temp Coeff  
ppm/°C  
AAT351xIGV-xx-A-x-T1  
AAT351xIGV-xx-B-x-T1  
AAT351xIGV-xx-C-x-T1  
VCC falling at 1mV/µs  
1
20  
140  
1.4  
28  
200  
40  
2
40  
280  
Reset Active Timeout  
Period  
tRP  
ms  
µs  
TRD  
VCC to RESET Delay  
3510.2004.08.1.4  
3
AAT3510/1/2/3/4/5/6/7/8/9  
Micropower µP Reset with Watchdog Timer  
1
Electrical Characteristics (VCC = 2.5V to 5.5V, TA = -40 to +85ºC unless 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)  
VCC ≥ 1.0V, ISINK = 50µA  
0.3  
VCC ≥ 1.2V, ISINK = 100µA  
0.3  
0.3  
0.4  
VOL  
RESET Low Output Voltage  
V
VCC ≥ 2.7V, ISINK = 1.2mA  
VCC ≥ 4.5V, ISINK = 3.2mA  
VCC ≥ 2.7V, ISOURCE = 500µA  
VCC ≥ 4.5V, ISOURCE = 800µA  
VCC ≥ 2.7V, ISINK = 1.2mA  
VCC ≥ 4.5V, ISINK = 3.2mA  
VCC ≥ 1.8V, ISOURCE = 150µA  
VCC ≥ 2.7V, ISOURCE = 500µA  
VCC ≥ 4.5V, ISOURCE = 800µA  
0.8 x VCC  
VCC - 1.5  
VOH  
RESET High Output Voltage  
RESET Low Output Voltage  
V
0.3  
0.4  
V
VOH  
0.8 x VCC  
0.8 x VCC  
VCC - 1.5  
RESET High Output Voltage  
Bidirectional RESET Output (AAT3511, 3514, 3516)  
2
tS  
Transition Flip-Flop Setup Time  
400  
ns  
VCC = 3.0V, CL = 120pF  
VCC = 5.0V, CL = 200pF  
VCC = 3.0V, CL = 250pF  
VCC = 5.0V, CL = 400pF  
VCC = 5.0V  
333  
333  
666  
666  
V
3
tR  
RESET Output Rise Time  
ns  
VPTH  
Active Pullup Enable Threshold  
RESET Active Pullup Current  
RESET Pullup Resistance  
0.4  
4.2  
0.65  
20  
4.7  
VCC = 5.0V  
mA  
kΩ  
5.2  
Open-Drain RESET Output (AAT3517, 3518, 3519)  
VCC ≥ 1.0V, ISINK = 50µA  
0.3  
0.3  
0.3  
0.4  
1.0  
VCC ≥ 1.2V, ISINK = 100µA  
VCC ≥ 2.7V, ISINK = 1.2mA  
VCC ≥ 4.5V, ISINK = 3.2mA  
VOL  
RESET Low Output Voltage  
Reset Leakage Current  
V
ID(OFF)  
µA  
ms  
Watchdog Input (AAT3510, 3511, 3512, 3513, 3514, 3517, 3518)  
AAT351xIGV-xx-x-A-T1  
AAT351xIGV-xx-x-B-T1  
AAT351xIGV-xx-x-C-T1  
4.3  
71  
1.12  
6.3  
102  
1.6  
50  
9.3  
153  
2.4  
tWD  
Watchdog Timeout Period  
WDI Minimum Pulse Width  
4
s
ns  
tWDI  
VIL  
VIH  
VIL = 0.3 x VCC, VIH = 0.7 x VCC  
5
WDI Input Threshold  
0.3 x VCC  
5
WDI Input Threshold  
0.8 x VCC  
160  
V
WDI = VCC, time average  
VWDI = 0, time average  
120  
-15  
6
IWDI  
WDI Input Current  
µA  
-20  
4
3510.2004.08.1.4  
AAT3510/1/2/3/4/5/6/7/8/9  
Micropower µP Reset with Watchdog Timer  
Symbol Description  
Conditions  
Min  
Typ  
Max Units  
Manual RESET Input (AAT3510, 3511, 3512, 3515, 3516, 3517, 3519)  
VIL  
VIH  
MR Input Threshold  
MR Input Threshold  
0.3 x VCC  
V
0.7 x VCC  
MR Input Pulse Width  
MR Glitch Rejection  
MR Internal Pullup Resistance  
MR to Reset Delay  
1
µs  
ns  
kΩ  
100  
52  
230  
TA = 25°C  
CC = 5V  
35  
75  
V
ns  
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 VOL 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.  
3510.2004.08.1.4  
5
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  
Vcc Falling To RESET Propagation  
Delay vs. Temperature  
10  
9
8
7
6
5
4
3
2
1
160  
Vcc=5V  
140  
Vcc falling at 1mV/µs  
120  
V
RST-Vcc=100mV  
100  
80  
60  
40  
20  
0
Vcc=3V  
Vcc=1V  
0
-40  
-20  
0
20  
40  
60  
80  
100  
-40  
-20  
0
20  
40  
60  
80  
100  
Temperature (°C)  
Temperature (°C)  
Normalized Reset Timeout Period vs.  
Temperature  
Manual Reset to RESET Propagation  
Delay vs. Temperature  
1.05  
1.04  
1.03  
1.02  
1.01  
1.00  
0.99  
0.98  
0.97  
0.96  
0.95  
500  
VCC=5V  
450  
400  
350  
300  
250  
200  
-40  
-20  
0
20  
40  
60  
80  
100  
-40  
-20  
0
20  
40  
60  
80  
100  
Temperature (°C)  
Temperature (°C)  
Normalized Watchdog Timeout Period  
vs. Temperature  
Maximum VCC Transient Duration vs.  
Reset Threshold Overdrive  
80  
70  
60  
50  
40  
1.05  
1.04  
1.03  
1.02  
1.01  
1.00  
0.99  
0.98  
0.97  
0.96  
0.95  
30  
VRST=2.63V  
20  
10  
0
-40  
-20  
0
20  
40  
60  
80  
100  
10  
100  
1000  
Temperature (°C)  
Reset Threshold Overdrive (mV) VRST-VCC  
6
3510.2004.08.1.4  
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)  
Bidirectional Pullup Characteristic  
+5V  
PASSIVE  
4.7kΩ  
74HC05  
INPUT  
4.7k  
100pF  
PULLUP  
2V/div  
RESET,  
ACTIVE  
PULLUP  
2V/div  
+5V  
74HC05  
100pF  
VCC  
RESET  
INPUT  
MR GND  
RESET,  
INPUT  
5V/div  
200ns/div  
3510.2004.08.1.4  
7
AAT3510/1/2/3/4/5/6/7/8/9  
Micropower µP Reset with Watchdog Timer  
Functional Block Diagram  
VCC  
RESET3  
Reset  
VCC  
Generator  
RESET4  
VREF  
MR1  
Watchdog  
Watchdog  
Timer  
WDI2  
Timer  
Detector  
GND  
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  
8
3510.2004.08.1.4  
AAT3510/1/2/3/4/5/6/7/8/9  
Micropower µP Reset with Watchdog Timer  
Factory Trimmed Reset Thresholds* and Ordering Information  
AAT351x IGV- X.XX-X-X-T1  
Watchdog Timeout (if applicable)  
Reset Active Period  
Threshold Voltage  
Reset Active Period  
A: TR(MIN) = 1ms  
B: TR(MIN) = 20ms  
C: TR(MIN) = 140ms  
Watchdog Timeout Period  
A: TWD(NOM) = 6.3ms  
B: TWD(NOM) = 102ms  
C: TWD(NOM) = 1600ms*  
VDD Threshold Voltage  
2.63: VTH(NOM) = 2.63V  
2.70: VTH(NOM) = 2.7V  
2.80: VTH(NOM) = 2.8V  
2.93: VTH(NOM) = 2.93V  
3.00: VTH(NOM) = 3.0V  
3.08: VTH(NOM) = 3.08V  
3.20: VTH(NOM) = 3.2V  
3.30: VTH(NOM) = 3.3V  
3.40: VTH(NOM) = 3.4V  
3.50: VTH(NOM) = 3.5V  
3.60: VTH(NOM) = 3.6V  
3.70: VTH(NOM) = 3.7V  
3.80: VTH(NOM) = 3.8V  
3.90: VTH(NOM) = 3.9V  
4.00: VTH(NOM) = 4.0V  
4.10: VTH(NOM) = 4.1V  
4.20: VTH(NOM) = 4.2V  
4.38: VTH(NOM) = 4.3V  
4.40: VTH(NOM) = 4.38V  
4.50: VTH(NOM) = 4.5V  
4.63: VTH(NOM) = 4.63V  
4.70: VTH(NOM) = 4.7V  
4.80: VTH(NOM) = 4.8V  
4.90: VTH(NOM) = 4.9V  
5.00: VTH(NOM) = 5.0V  
* Watchdog timeout period C is not avaliable on AAT3513, AAT3514 and AAT3518.  
3510.2004.08.1.4  
9
AAT3510/1/2/3/4/5/6/7/8/9  
Micropower µP Reset with Watchdog Timer  
Ordering Information  
1
Package  
SOT23-5  
SOT23-5  
SOT23-5  
SOT23-5  
SOT23-5  
SOT23-5  
SOT23-5  
SOT23-5  
SOT23-5  
SOT23-5  
SOT23-5  
SOT23-5  
SOT23-5  
SOT23-5  
SOT23-5  
SOT23-5  
SOT23-5  
Marking  
Part Number (Tape and Reel)  
AAT3510IGV-2.63-C-C-T1  
AAT3510IGV-2.93-C-C-T1  
AAT3510IGV-3.08-C-C-T1  
AAT3510IGV-4.38-C-C-T1  
AAT3511IGV-2.63-C-C-T1  
AAT3512IGV-2.63-A-C-T1  
AAT3512IGV-2.63-C-C-T1  
AAT3513IGV-2.63-C-C-T1  
AAT3515IGV-2.63-C-T1  
AAT3515IGV-2.93-B-T1  
AAT3515IGV-2.93-C-T1  
AAT3515IGV-3.08-C-T1  
AAT3515IGV-4.38-C-T1  
AAT3515IGV-4.63-C-T1  
AAT3517IGV-2.63-C-C-T1  
AAT3517IGV-2.8-B-C-T1  
AAT3517IGV-2.93-C-C-T1  
HVXYY  
HUXYY  
HGXYY  
HHXYY  
EWXYY  
MYXYY  
JOXYY  
HFXYY  
HEXYY  
HIXYY  
KLXYY  
JNXYY  
KMXYY  
MFXYY  
INXYY  
LZXYY  
IQXYY  
Note: Sample stock is held on part numbers listed in bold.  
Note 1: XYY = date and assembly code.  
10  
3510.2004.08.1.4  
AAT3510/1/2/3/4/5/6/7/8/9  
Micropower µP Reset with Watchdog Timer  
Package Information  
SOT23-5  
2.85 ± 0.15  
1.90 BSC  
0.95  
BSC  
0.60 REF  
0.15 ± 0.07  
GAUGE PLANE  
0.075  
± 0.075  
0.45 ± 0.15  
0.10 BSC  
0.60 REF  
10°  
±
5°  
0.40 ± 0.10  
All dimensions in millimeters.  
3510.2004.08.1.4  
11  
AAT3510/1/2/3/4/5/6/7/8/9  
Micropower µP Reset with Watchdog Timer  
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.  
Advanced Analogic Technologies, Inc.  
830 E. Arques Avenue, Sunnyvale, CA 94085  
Phone (408) 737-4600  
Fax (408) 737-4611  
12  
3510.2004.08.1.4  

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