MAX803ZEXR+T Maxim Integrated Products, MAX803ZEXR+T Datasheet - Page 7

• Manufacturer Part Number: MAX803ZEXR+T
• Description: IC RESET CIRC MPU SC70-3
• Manufacturer: Maxim Integrated Products
• Type: Simple Reset/Power-On Resetr

Specifications of MAX803ZEXR+T

• Number Of Voltages Monitored: 1
• Output: Open Drain or Open Collector
• Reset: Active Low
• Reset Timeout: 140 ms Minimum
• Voltage - Threshold: 2.32V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: SC-70-3, SOT-323-3
• Monitored Voltage: 2.5 V, 3 V, 3.3 V, 5 V
• Output Type: Active Low, Open Drain
• Manual Reset: Not Resettable
• Watchdog: No Watchdog
• Battery Backup Switching: No Backup
• Power-up Reset Delay (typ): 240 ms
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.2 V
• Supply Current (typ): 17 uA
• Maximum Power Dissipation: 174 mW
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Power Fail Detection: No
• Undervoltage Threshold: 2.28 V
• Overvoltage Threshold: 2.35 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MAX803ZEXR+T; MAX803ZEXR+TTR

below 1V, so does the IC’s ability to sink current at
RESET. Also, with any pullup, RESET will be pulled high
as V
depends on the pullup resistor value and the voltage to
which it is connected.
Most µP supervisor ICs have reset threshold voltages
between 5% and 10% below the value of nominal sup-
ply voltages. This ensures a reset will not occur within
5% of the nominal supply, but will occur when the sup-
ply is 10% below nominal.
When using ICs rated at only the nominal supply ±5%,
this leaves a zone of uncertainty where the supply is
between 5% and 10% low, and where the reset may or
may not be asserted.
The MAX8_ _L/T/Z use highly accurate circuitry to
ensure that reset is asserted close to the 5% limit, and
long before the supply has declined to 10% below
nominal.
CC
decays toward 0. The voltage where this occurs
_______________________________________________________________________________________
Benefits of Highly Accurate
3-Pin Microprocessor Reset Circuits
Reset Threshold
TRANSISTOR COUNT: 275 (SOT23)
For the latest package outline information and land patterns,
go to www.maxim-ic.com/packages. Note that a “+”, “#”, or
“-” in the package code indicates RoHS status only. Package
drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
PACKAGE TYPE
3 SOT23
3 SC70
PACKAGE CODE
Package Information
380 (SC70)
U3-1
X3-2
Chip Information
DOCUMENT NO.
21-0075
21-0051
7