MAX809JEUR+T10 Maxim Integrated, MAX809JEUR+T10 Datasheet

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MAX809JEUR+T10

Manufacturer Part Number
MAX809JEUR+T10
Description
Supervisory Circuits NULL
Manufacturer
Maxim Integrated
Series
MAX803L, MAX803M, MAX803R, MAX803S, MAX803T, MAX803Z, MAX809J, MAX809L, MAX809M, MAX809R, MAX809S, MAX809T, MAX809Z, MAX810L, MAX810M, MAX810R, MAX810S, MAX810T, MAX810Zr
Datasheet

Specifications of MAX809JEUR+T10

Number Of Voltages Monitored
1
Monitored Voltage
2.5 V, 3 V, 3.3 V, 5 V
Undervoltage Threshold
3.93 V
Overvoltage Threshold
4.06 V
Output Type
Active Low, Push-Pull
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
Maximum Operating Temperature
+ 105 C
Mounting Style
SMD/SMT
Package / Case
SOT-23
Chip Enable Signals
No
Maximum Power Dissipation
320 mW
Minimum Operating Temperature
- 40 C
Power Fail Detection
No
Supply Voltage - Min
1.2 V
The MAX803/MAX809/MAX810 are microprocessor (µP)
supervisory circuits used to monitor the power supplies
in µP and digital systems. They provide excellent circuit
reliability and low cost by eliminating external compo-
nents and adjustments when used with +5V, +3.3V,
+3.0V, or +2.5V powered circuits.
These circuits perform a single function: they assert a
reset signal whenever the V
below a preset threshold, keeping it asserted for at
least 140ms after V
old. Reset thresholds suitable for operation with a vari-
ety of supply voltages are available.
The MAX803 has an open-drain output stage, while the
MAX809/MAX810 have push-pull outputs. The
MAX803’s open-drain RESET output requires a pullup
resistor that can be connected to a voltage higher than
V
output, while the MAX810 has an active-high RESET
output. The reset comparator is designed to ignore fast
transients on V
be in the correct logic state for V
Low supply current makes the MAX803/MAX809/
MAX810 ideal for use in portable equipment. The
MAX803 is available in a 3-pin SC70 package, and the
MAX809/MAX810 are available in 3-pin SC70 or SOT23
packages.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
CC
. The MAX803/MAX809 have an active-low RESET
*MAX803 ONLY
Computers
Controllers
Intelligent Instruments
Critical µP and µC Power Monitoring
Portable/Battery-Powered Equipment
Automotive
V
CC
MAX803
MAX809
CC
Typical Operating Circuit
GND
V
CC
, and the outputs are guaranteed to
CC
RESET
has risen above the reset thresh-
General Description
CC
3-Pin Microprocessor Reset Circuits
R
PULLUP
supply voltage declines
CC
*
Applications
down to 1V.
RESET
INPUT
GND
V
µP
CC
MAX803/MAX809/MAX810
o Precision Monitoring of +2.5V, +3V, +3.3V, and
o Fully Specified Over Temperature
o Available in Three Output Configurations
o 140ms min Power-On Reset Pulse Width
o 12µA Supply Current
o Guaranteed Reset Valid to V
o Power Supply Transient Immunity
o No External Components
o 3-Pin SC70 and SOT23 Packages
____________________________Features
Note: These parts are offered in 2.5k reels, and must be
ordered in 2.5k increments. Insert the desired suffix letter from
the Selector Guide into the blank to complete the part number.
All versions of these products may not be available at the time
of announcement. Contact factory for availability.
Devices are available in both leaded and lead-free packaging.
+ Denotes a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
MAX803_EXR-T
MAX803_EXR+T
MAX803_EXR/V+
MAX809_EXR-T
MAX809_EXR+T
MAX809_EUR-T
MAX809_EUR+T
MAX810_EXR-T
MAX810_EXR+T
MAX810_EUR-T
MAX810_EUR+T
+5V Power-Supply Voltages
Open-Drain RESET Output (MAX803)
Push-Pull RESET Output (MAX809)
Push-Pull RESET Output (MAX810)
PART
TOP VIEW
( ) ARE FOR MAX810.
MAX803 AVAILABLE IN SC70-3 ONLY.
RESET (RESET)
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +105°C
-40°C to +105°C
-40°C to +125°C
-40°C to +125°C
-40°C to +105°C
-40°C to +105°C
TEMP RANGE
GND
Ordering Information
1
2
SC70-3/SOT23-3
Pin Configuration
MAX803
MAX809
MAX810
CC
= +1V
3
19-0344; Rev 8; 12/12
PIN-PACKAGE
3 SC70
3 SC70
3 SC70
3 SC70
3 SC70
3 SOT23
3 SOT23
3 SC70
3 SC70
3 SOT23
3 SOT23
V
CC

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MAX809JEUR+T10 Summary of contents

Page 1

... Microprocessor Reset Circuits General Description The MAX803/MAX809/MAX810 are microprocessor (µP) supervisory circuits used to monitor the power supplies in µP and digital systems. They provide excellent circuit reliability and low cost by eliminating external compo- nents and adjustments when used with +5V, +3.3V, +3.0V, or +2.5V powered circuits. ...

Page 2

... MAX8_ -40°C to +85° -40°C to +125° +25°C A MAX8_ -40°C to +85° -40°C to +125° +70° 2.5V for Z version.) (Note 1) CC MIN TYP MAX UNITS 1.0 5.5 V 1.2 5.5 1.2 5 100 100 µ 4.56 4.63 4.70 4.50 4.75 4.40 4.86 4.31 4.38 4.45 4.25 4.50 4.16 4.56 3.93 4.00 4.06 3.89 4.10 3.80 4.20 V 3.04 3.08 3.11 3.00 3.15 2.92 3.23 2.89 2.93 2.96 2.85 3.00 2.78 3.08 2.59 2.63 2.66 2.55 2.70 2.50 2.76 Maxim Integrated ...

Page 3

... MAX803 and MAX809) Output Voltage High (push-pull active low MAX809) RESET Output Voltage Low (push-pull active high, MAX810) Maxim Integrated MAX803/MAX809/MAX810 = -40°C to +125°C (SC70), unless otherwise noted. Typical values are 3.3V for T/S versions for R version, and V ...

Page 4

... OD 0 -40 - TEMPERATURE (°C) NORMALIZED RESET THRESHOLD vs. TEMPERATURE 1.003 1.002 1.001 1.000 0.999 0.998 0.997 20 60 -20 - TEMPERATURE (° MAX UNITS V 1 µ 10mV 20mV 100mV 200mV Maxim Integrated ...

Page 5

... RESET Output remains high while V RESET is below the reset threshold, and for at (MAX810) least 140ms after V reset threshold. Supply Voltage (+5V, +3.3V, +3.0V +2.5V) Maxim Integrated MAX803/MAX809/MAX810 OUTPUT TYPE OPEN-DRAIN RESET OPEN-DRAIN RESET OPEN-DRAIN RESET OPEN-DRAIN RESET OPEN-DRAIN RESET OPEN-DRAIN RESET PUSH-PULL RESET PUSH-PULL RESET ...

Page 6

... Interfacing to µPs with Bidirectional Reset Pins MAX803 Open-Drain RESET Output Allows Use with Multiple Supplies pin. However, some systems may use the MAX809 RESET R1 100k GND = Ground Circuit CC +5.0V +3. PULLUP 5V SYSTEM MAX803 RESET RESET INPUT GND GND decreases CC Maxim Integrated ...

Page 7

... 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. Maxim Integrated MAX803/MAX809/MAX810 TRANSISTOR COUNT: 275 (SOT23) Reset Threshold For the latest package outline information and land patterns (foot- prints www.maximintegrated.com/packages. Note that a “ ...

Page 8

... Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed ...

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