MAX691AD Ver la hoja de datos (PDF) - Maxim Integrated
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MAX691AD Datasheet PDF : 16 Pages
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Microprocessor Supervisory Circuits
____________________________Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
BATTERY CURRENT
vs. INPUT SUPPLY VOLTAGE
20
VBATT = 2.8V
IOUT = 0A
16
12
8
4
0
0
1
2
3
4
5
VCC (V)
WATCHDOG AND RESET TIMEOUT PERIOD
vs. OSC IN TIMING CAPACITOR (COSC)
100
VCC = 5V
VBATT = 2.8V
LONG WATCHDOG
TIMEOUT PERIOD
10
RESET ACTIVE
TIMEOUT PERIOD
1
0.1
10
SHORT WATCHDOG
TIMEOUT PERIOD
100
COSC (pF)
1000
CHIP-ENABLE PROPAGATION DELAY
vs. CE OUT LOAD CAPACITANCE
20
VCC = 5V
CE IN = 0V TO 5V
DRIVER SOURCE
16 IMPEDANCE = 50Ω
12
8
4
0
0 50 100 150 200 250 300
CLOAD (pF)
VCC to VOUT vs. OUTPUT CURRENT
(NORMAL OPERATING MODE)
1000
VCC = 4.5V
VBATT = 0V
100
10 SLOPE = 0.8Ω
1
1
10
100
1000
IOUT (mA)
VBATT to VOUT vs. OUTPUT CURRENT
(BATTERY-BACKUP MODE)
1000
VCC = 0V
VBATT = 4.5V
100
SLOPE = 8Ω
10
1
1
10
100
IOUT (mA)
5V
VCC RESET
THRESHOLD
HI
LOW LINE
LO
HI
RESET
LO
HI
CE OUT
LO
VCC to LOW LINE
AND CE OUT DELAY
80µs
800ns
12µs
6 _______________________________________________________________________________________
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