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ADM9690 Folha de dados(PDF) 4 Page - Analog Devices

Nome de Peças ADM9690
Descrição Electrónicos  Power Supply and Watchdog Timer Monitoring Circuit
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Fabricante Electrônico  AD [Analog Devices]
Página de início  http://www.analog.com
Logo AD - Analog Devices

ADM9690 Folha de dados(HTML) 4 Page - Analog Devices

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ADM9690
–4–
REV. A
–Typical Performance Curves
CH1
1.0V
CH2
M 500ms
VCC
1.0V
CH1
380mV
RESET
Figure 1. Reset Output Voltage vs. Supply
TEMPERATURE – C
4.412
4.396
–60
120
–30
0
30
60
90
4.410
4.408
4.406
4.404
4.402
4.400
4.398
Figure 2. Reset Voltage Threshold vs. Temperature
WATCHDOG
TRANSITION
DETECTOR
VCC
VMON
OSC SEL1
OSC SEL2
RESET(2)
TIMER
RESET(1)
TIMER
4.31V
ADM9690
RESET(1)
RESET(2)
GND
WATCHDOG
TIMEBASE
WATCHDOG
INPUT (WDI)
+5V
I/O LINE
P
AUXILIARY
CIRCUITRY
RESET
RESET
Figure 5. Typical Application Circuit
VCC – Volts
100
10
2.5
5.5
3.0
3.5
4.0
4.5
5.0
WATCHDOG TIMEOUT
PERIOD
6.0
6.5
RESET2/TIMEOUT
RESET1/TIMEOUT
Figure 3. Watchdog and Reset Timeout Period vs. Supply
@ –40
°C
TEMPERATURE – C
72.0
68.8
–60
120
–30
0
30
60
90
71.6
71.2
70.8
70.4
70.0
69.6
69.2
Figure 4. Supply Current vs. Temperature


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