MXD1811UR44+T Maxim Integrated Products, MXD1811UR44+T Datasheet - Page 7

• Manufacturer Part Number: MXD1811UR44+T
• Description: IC MPU RESET CIRC 4.37V SOT23-3
• Manufacturer: Maxim Integrated Products
• Type: Simple Reset/Power-On Resetr

Specifications of MXD1811UR44+T

• Number Of Voltages Monitored: 1
• Output: Open Drain or Open Collector
• Reset: Active Low
• Reset Timeout: 100 ms Minimum
• Voltage - Threshold: 4.37V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-3, TO-236-3, Micro3™, SSD3, SST3
• Monitored Voltage: 2.5 V, 3 V, 3.3 V, 5 V
• Undervoltage Threshold: 4.25 V
• Overvoltage Threshold: 4.49 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
• Supply Voltage (min): 1 V
• Supply Current (typ): 9 uA
• Maximum Power Dissipation: 320 mW
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Power Fail Detection: No
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MXD1811UR44+T; MXD1811UR44+TTR

MXD1817 applications where RESET must be valid to
V
V
mum operating voltage (Figure 9).
The MXD1811/MXD1813/MXD1816/MXD1818 have
open-drain, active-low outputs with a pullup resistor
included internal to the devices. While using these
devices RESET will most likely not maintain an active
Figure 4. Power-Up Reset Timing Diagram
Figure 6. Manual Reset Timing Diagram
CC
CC
RESET
RESET
V
CC
= 0, a 100kΩ pullup resistor between RESET and
holds RESET high when V
PUSH BUTTON
V
CC(MIN)
EXTERNAL
RESET
V
CC
_______________________________________________________________________________________
V
TH
t
t
RP
(OPEN)
(OPEN)
RP
Low-Power μP Reset Circuits in 3-Pin
CC
falls below the mini-
t
PBRST
(CLOSED)
SWITCH BOUNCE
condition when the supply voltage drops below the
minimum V
the pullup resistor and the reduced sinking capability of
the open-drain output. Therefore, these devices are not
recommended for applications where the RESET pin is
required to be valid at V
Figure 5. Push-Button Manual Reset
V
CC
MXD1813
MXD1818
CC
, but will drift to a nonactive level due to
V
GND
CC
t
PBRST
CC
SC70/SOT23
= 0.
RESET
RESET
MANUAL
RESET
7