DS1818R-20-U+ Maxim Integrated, DS1818R-20-U+ Datasheet - Page 4

• Manufacturer Part Number: DS1818R-20-U+
• Description: Supervisory Circuits
• Manufacturer: Maxim Integrated
• Series: DS1818r

Specifications of DS1818R-20-U+

• Number Of Voltages Monitored: 1
• Monitored Voltage: 1 V to 5.5 V
• Undervoltage Threshold: 2.47 V
• Overvoltage Threshold: 2.64 V
• Output Type: Active Low, Open Drain
• Manual Reset: Not Resettable
• Watchdog: No Watchdog
• Battery Backup Switching: No Backup
• Power-up Reset Delay (typ): 250 ms
• Supply Voltage - Max: 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOT-23
• Chip Enable Signals: No
• Minimum Operating Temperature: - 40 C
• Power Fail Detection: Yes
• Supply Current (typ): 35 uA
• Supply Voltage - Min: 1 V
• Part # Aliases: 90-1818R+U20

ELECTRICAL CHARACTERISTICS (continued)
(V
Dual/Triple Ultra-Low-Voltage SOT23 µP
Supervisory Circuits
Note 1: Devices tested at +25°C. Overtemperature limits are guaranteed by design and not production tested.
Note 2: Parameter guaranteed by design.
4
RESET/POWER-FAIL OUTPUTS
RST/RST1/RST2/PFO
Output LOW
(Push-Pull or Open-Drain)
RST/RST1/PFO
Output HIGH
(Push-Pull Only)
RST2
Output HIGH
(Push-Pull Only)
RST
Output HIGH
(Push-Pull Only)
RST
Output LOW
(Push-Pull or Open Drain)
RST/RST1/RST2/PFO Output
Open-Drain Leakage Current
RST Output Open-Drain
Leakage Current
CC
_______________________________________________________________________________________
1 = V
CC
PARAMETER
2 = 0.8V to 5.5V, GND = 0, T
SYMBOL
V
V
V
V
V
OH
OH
OH
OL
OL
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
V
output asserted
V
output asserted
V
output asserted
V
output asserted
V
output asserted
V
asserted
V
asserted
V
asserted
V
asserted
V
asserted
V
asserted
V
V
reset asserted
V
reset asserted
V
reset asserted
V
reset not asserted
V
reset not asserted
V
reset not asserted
Output not asserted
Output asserted
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
1 or V
1 or V
1 or V
1 or V
1 or V
1 ≥ 1.8V, I
1 ≥ 2.7V, I
1 ≥ 4.5V, I
2 ≥ 1.8V, I
2 ≥ 2.7V, I
2 ≥ 4.5V, I
1 ≥ 1.0V, I
1 ≥ 1.8V, I
1 ≥ 2.7V, I
1 ≥ 4.5V, I
1 or V
1 or V
1 or V
CC
CC
CC
CC
CC
CC
CC
CC
2 ≥ 0.8V, I
2 ≥ 1.0V, I
2 ≥ 1.2V, I
2 ≥ 2.7V, I
2 ≥ 4.5V, I
2 ≥ 1.8V, I
2 ≥ 2.7V, I
2 ≥ 4.5V, I
SOURCE
SOURCE
SOURCE
SOURCE
SOURCE
SOURCE
SOURCE
SOURCE
SOURCE
SOURCE
CONDITIONS
= 200µA, output not
= 500µA, output not
= 800µA, output not
= 200µA, output not
= 500µA, output not
= 800µA, output not
= 1µA, reset asserted
= 150µA,
= 500µA,
= 800µA,
SINK
SINK
SINK
SINK
SINK
SINK
SINK
SINK
= 1µA,
= 50µA,
= 100µA,
= 1.2mA,
= 3.2mA,
= 500µA,
= 1.2mA,
= 3.2mA,
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
MIN
✕
✕
✕
✕
✕
✕
✕
✕
✕
✕
V
V
V
V
V
V
V
V
V
V
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
1
1
1
2
2
2
1
1
1
1
TYP
A
= +25°C.) (Note 1)
MAX
0.3
0.3
0.3
0.3
0.4
0.3
0.3
0.4
0.5
0.5
UNITS
µA
µA
V
V
V
V
V