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AAT3512 데이터시트 PDF




AAT에서 제조한 전자 부품 AAT3512은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 AAT3512 기능
기능 (AAT3510 - AAT3519) Micropower uP Reset
제조업체 AAT
로고 AAT 로고


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AAT3512 데이터시트, 핀배열, 회로
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




AAT3512 pdf, 반도체, 판매, 대치품
AAT3510/1/2/3/4/5/6/7/8/9
Micropower µP Reset with Watchdog Timer
Electrical Characteristics
VCC = 2.5V to 5.5V, TA = -40°C to +85°C1, unless otherwise noted. Typical values are at TA = 25°C.
Symbol Description
Conditions
Min Typ Max
Units
VCC Operating Voltage Range TA = -40°C to +85°C
1
AAT3510/1/2/3/4/7/8: VCC = 3.6V
5
ICC Supply Current
MR & WDI Unconnected VCC = 5.5V
AAT3515/6/9:
VCC = 3.6V
6
MR Unconnected
VCC = 5.5V
VTH
Reset Threshold Voltage
TA = 25°C
TA = -40 to +85°C
VTHNOM-1.5% VTH
VTHNOM-2.5% VTH
TC
Reference Voltage
Temperature Coefficient
-40°C < TA < +85°C
±40
Reset Active Timeout
tRP Period
AAT351xIGV-xx-A-x-T1
AAT351xIGV-xx-B-x-T1
AAT351xIGV-xx-C-x-T1
1 1.4
20 28
140 200
TRD VCC to RESET Delay
VCC Falling at 1mV/µs
Push/Pull RESET Output (AAT3510, 3512, 3513, 3514, 3515, 3516, 3518, 3519)
40
VCC 1.0V, ISINK = 50µA
VOL
RESET Low Output Voltage
VCC 1.2V, ISINK = 100µA
VCC 2.7V, ISINK = 1.2mA
VCC 4.5V, ISINK = 3.2mA
VOH
RESET High Output Voltage VCC 2.7V, ISOURCE = 500µA
VCC 4.5V, ISOURCE = 800µA
RESET Low Output Voltage
VCC 2.7V, ISINK = 1.2mA
VCC 4.5V, ISINK = 3.2mA
VOH VCC 1.8V, ISOURCE = 150µA
RESET High Output Voltage VCC 2.7V, ISOURCE = 500µA
VCC 4.5V, ISOURCE = 800µA
Bidirectional RESET Output (AAT3511, 3514, 3516)
0.8 x VCC
VCC - 1.5
0.8 x VCC
0.8 x VCC
VCC - 1.5
Transition Flip-Flop Setup
tS Time2
400
VCC = 3.0V, CL = 120pF
tR
RESET Output Rise Time3 VCC = 5.0V, CL = 200pF
VCC = 3.0V, CL = 250pF
VCC = 5.0V, CL = 400pF
Active Pull-Up Enable
Threshold
VCC = 5.0V
0.4 0.65
VPTH
RESET Active Pull-Up
Current
VCC = 5.0V
20
RESET Pull-Up Resistance
4.2 4.7
5.5
15
18
15
18
VTHNOM+1.5%
VTHNOM+2.5%
2
40
280
0.3
0.3
0.3
0.4
0.3
0.4
333
333
666
666
5.2
V
µA
V
ppm/°C
ms
µs
V
V
V
ns
ns
V
mA
k
1. Over-temperature limits are guaranteed by design, not production tested.
2. This is the minimum time RESET must be held low by an external pull-down source to set the active pull-up flip-flop.
3. Measured from RESET VOL to (0.8 x VCC), open circuit output.
4 3510.2006.03.1.7

4페이지










AAT3512 전자부품, 판매, 대치품
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
PASSIVE
4.7k
PULLUP
2V/div
+5V
74HC05 4.7k
INPUT
100pF
RESET,
ACTIVE
PULLUP
2V/div
RESET,
INPUT
5V/div
74HC05
INPUT
100pF
+5V
VCC
RESET
MR GND
Time (200ns/div)
3510.2006.03.1.7
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