MAX825SEUK+T Maxim Integrated Products, MAX825SEUK+T Datasheet - Page 6
![IC SUPERVISOR MPU SOT23-5](/photos/1/38/13898/175-sot-23-5_sml.jpg)
MAX825SEUK+T
Manufacturer Part Number
MAX825SEUK+T
Description
IC SUPERVISOR MPU SOT23-5
Manufacturer
Maxim Integrated Products
Type
Simple Reset/Power-On Resetr
Datasheet
1.MAX823LEUKT.pdf
(10 pages)
Specifications of MAX825SEUK+T
Number Of Voltages Monitored
1
Output
Push-Pull, Totem Pole
Reset
Active High/Active Low
Reset Timeout
140 ms Minimum
Voltage - Threshold
2.93V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
Monitored Voltage
2.5 V, 3 V, 3.3 V, 5 V
Undervoltage Threshold
2.89 V
Overvoltage Threshold
2.96 V
Output Type
Active High, Active Low, Push-Pull
Manual Reset
Resettable
Watchdog
No Watchdog
Battery Backup Switching
No Backup
Power-up Reset Delay (typ)
280 ms
Supply Voltage (max)
5.5 V
Supply Voltage (min)
1.2 V
Supply Current (typ)
3 uA
Maximum Power Dissipation
571 mW
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Power Fail Detection
No
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
5-Pin Microprocessor Supervisory Circuits With
Watchdog Timer and Manual Reset
Figure 1. Functional Diagram
6
MAX823
_______________________________________________________________________________________
—
1
2
3
4
5
(MAX823/MAX825
(MAX823/MAX824
MAX824
PIN
ONLY)
ONLY)
—
1
2
3
4
5
V
WDI
MR
CC
MAX825
—
1
2
4
3
5
V
CC
NAME
RESET
RESET
GND
WDI
V
MR
CC
WATCHDOG
TRANSITION
DETECTOR
Active-Low Reset Output. Pulses low for 200ms when triggered, and remains
low whenever V
remains low for 200ms after one of the following occurs: V
reset threshold, the watchdog triggers a reset, or MR goes low to high.
Ground
Manual Reset Input. A logic low on MR asserts reset. Reset remains asserted as
long as MR is held low and for 200ms after MR returns high. The active-low input
has an internal 52kΩ pullup resistor. It can be driven from a CMOS logic line or
shorted to ground with a switch. Leave open or connect to V
Active-High Reset Output. Inverse of RESET.
Watchdog Input. If WDI remains either high or low for longer than the watch-
dog timeout period, the internal watchdog timer runs out and a reset is trig-
gered. The internal watchdog timer clears whenever reset is asserted, or
whenever WDI sees a rising or falling edge. If WDI is left unconnected or is
connected to a three-stated buffer output, the watchdog feature is disabled.
Supply Voltage
1.25V
CC
GND
is below the reset threshold or when MR is a logic low. It
GENERATOR
WATCHDOG
RESET
TIMER
FUNCTION
MAX823
MAX824
MAX825
Pin Description
RESET
RESET
(MAX824/MAX825
ONLY)
CC
CC
rises above the
if unused.