DS1818R-20-U+ Maxim Integrated, DS1818R-20-U+ Datasheet - Page 6

• 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

Dual/Triple Ultra-Low-Voltage SOT23 µP
Supervisory Circuits
(V
6
MAX6715/
MAX6716
CC
24.4
24.2
24.0
23.8
23.6
23.4
23.2
23.0
22.8
_______________________________________________________________________________________
1 = 5V, V
1
-40
RESET INPUT TO RESET OUTPUT DELAY
MAX6717/
MAX6718
-15
CC
vs. TEMPERATURE
2 = 3.3V, T
1
TEMPERATURE (°C)
10
MAX6719/
MAX6720
35
A
30mV OVERDRIVE
1
= +25°C, unless otherwise noted.)
60
MAX6721/
MAX6722
85
1
PIN
Typical Operating Characteristics (continued)
MAX6723/
MAX6724
2.4
2.3
2.2
2.1
2.0
-40
1
POWER-FAIL INPUT TO POWER-FAIL
OUTPUT DELAY vs. TEMPERATURE
-15
MAX6725/
MAX6726
TEMPERATURE (°C)
1
10
35
MAX6727
30mV OVERDRIVE
1, 4
60
85
MAX6728/
MAX6729
1
0
0
NAME
RST1
MR TO RESET OUTPUT DELAY
RST/
Pin Description
Active-Low Reset Output,
Open-Drain or Push-Pull.
RST/RST1 changes from
high to low when V
V
selected reset thresholds,
RSTIN is below threshold,
MR is pulled low, or the
watchdog triggers a
reset. RST/RST1 remains
low for the reset timeout
period after V
V
device reset thresholds,
MR goes low to high, or
the watchdog triggers a
reset. Open-drain outputs
require an external pullup
resistor. Push-pull
outputs are referenced to
V
CC
CC
CC
50ns/div
2 drops below the
2/RSTIN exceed the
1.
FUNCTION
MAX6715-29 toc12
CC
1/
CC
1 or
V
2V/div
V
2V/div
MR
RST