900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Maxim Integrated Semiconductor Electronic Components Datasheet

MAX6801 Datasheet

Low-Power uP Reset Circuits

No Preview Available !

19-1933; Rev 4; 3/12
3-Pin, Low-Power
µP Reset Circuits
General Description
The MAX6800/MAX6801/MAX6802 microprocessor (µP)
supervisory circuits monitor the power supplies in 2.85V
to 5.0V µP and digital systems. They increase circuit
reliability and reduce cost by eliminating external com-
ponents and adjustments.
These devices perform a single function—they assert a
reset signal whenever the V CC supply voltage declines
below a preset threshold, keeping it asserted for a preset
timeout period after V CC has risen above the reset
threshold. The only difference among the three devices
is their output. The MAX6801 (push/pull) and MAX6802
(open-drain) have an active-low RESET output, while the
MAX6800 (push/pull) has an active-high RESET output.
The MAX6800/MAX6801 are guaranteed to be in the cor-
rect state for VCC down to 0.7V. The MAX6802 is guaran-
teed to be in the correct state for VCC down to 1.0V.
The reset comparator in these ICs is designed to ignore
fast transients on V CC. Reset thresholds are factory-
trimmable between 2.63V and 4.80V, in approximately
100mV increments. These devices are available with a
1ms (min), 20ms (min), or 100ms (min) reset pulse
width. Ideal for space-critical applications, the
MAX6800/MAX6801/MAX6802 come packaged in a 3-
pin SOT23. For a lower threshold voltage version, see
the MAX6332/MAX6333/MAX6334.
Applications
Computers
Controllers
Intelligent Instruments
Critical µP/µC Power Monitoring
Portable/Battery-Powered Equipment
Automotive
Typical Operating Circuit and Pin Configuration appear
at end of data sheet.
Selector Guide appears at end of data sheet.
Features
o Ultra-Low 0.7V Operating Supply Voltage
o Low 4.0µA Supply Current
o Precision Monitoring of 2.85V to 5.0V Power-
Supply Voltages
o Reset Thresholds Available from 2.63V to 4.80V,
in Approximately 100mV Increments
o Fully Specified over Temperature
o Three Power-On Reset Timeout Periods Available
(1ms min, 20ms min, 100ms min)
o Low Cost
o Three Available Output Structures: Push/Pull
RESET, Push/Pull RESET, Open-Drain RESET
o Guaranteed RESET/RESET Valid to VCC = 0.7V
(MAX6800/MAX6801)
o Power-Supply Transient Immunity
o No External Components Required
o 3-Pin SOT23 Package
o Pin Compatible with MAX809/MAX810,
MAX6326/MAX6327/MAX6328, and
MAX6346/MAX6347/MAX6348
Ordering Information
PART
MAX6800UR_ _D_-T
MAX6800UR_ _D_/V-T
MAX6801UR_ _D_-T
MAX6801UR_ _ D_/V-T
MAX6802UR_ _D_-T
MAX6802UR_ _ D_/V-T
TEMP RANGE
-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 +125°C
PIN-PACKAGE
3 SOT23
3 SOT23
3 SOT23
3 SOT23
3 SOT23
3 SOT23
*These devices are available in factory-set V CC reset thresh-
olds from 2.63V to 4.80V, in approximately 0.1V increments.
Choose the desired reset threshold suffix from Table 1 and
insert it in the blanks following “UR” in the part number.
Factory-programmed reset timeout periods are also available.
Insert the number corresponding to the desired nominal reset
timeout period (1 = 1ms min, 2 = 20ms min, 3 = 100ms min) in
the blank following “D” in the part number. There are 15 stan-
dard versions with a required order increment of 2500 pieces.
Sample stock is generally held on the standard versions only
(see Selector Guide). Contact the factory for availability of non-
standard versions (required order increment is 10,000 pieces).
All devices available in tape-and-reel only.
Devices are available in both leaded and lead-free packaging.
Specify lead-free by replacing “-T” with “+T” when ordering.
/V Denotes an automotive-qualified part.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
http://www.Datasheet4U.com/


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX6801 Datasheet

Low-Power uP Reset Circuits

No Preview Available !

3-Pin, Low-Power
µP Reset Circuits
ABSOLUTE MAXIMUM RATINGS
Terminal Voltage (with respect to GND)
VCC ......................................................................-0.3V to +6V
Push/Pull RESET, RESET .......................-0.3V to (VCC + 0.3V)
Open-Drain RESET ..............................................-0.3V to +6V
Input Current (VCC) .............................................................20mA
Output Current (RESET, RESET).........................................20mA
Continuous Power Dissipation (TA = +70°C)
3-Pin SOT23 (derate 4mW/°C above +70°C) ..............320mW
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+300°C
Lead (Pb)-free packages ............................................+260°C
Package containing lead (Pb).....................................+240°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress rating s only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio ns is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VCC = full range, TA = -40°C to +125°C, unless otherwise noted. Typical values are at VCC = +5.0V and TA = +25°C, reset not
asserted.) (Note 1)
PARAMETER
Supply Voltage Range
(Note 2)
Supply Current
Reset Threshold
VCC Falling Reset Delay
Reset Active Timeout Period
RESET Output Low Voltage
(MAX6801/MAX6802)
RESET Output High Voltage
(MAX6801)
RESET Output Voltage
(MAX6800)
RESET Output Leakage Current
(MAX6802)
SYMBOL
CONDITIONS
MIN
MAX6800/MAX6801 0.7
TA = 0°C to +125°C MAX6802
1.0
VCC MAX6800/MAX6801 0.78
TA = -40°C to +125°C MAX6802
1.2
ICC No load
VCC = +3.0V
VCC = +5.0V
TA = +25°C
MAX680_UR_ _D_-T,
VTH
- 1.8%
VTH Table 1
TA = -40°C to +125°C
VTH
- 3%
VCC falling at 10V/ms
MAX680_UR_ _D1-T
1
tRP MAX680_UR_ _D2-T
MAX680_UR_ _D3-T
20
100
VOL
Reset
asserted
VOH
Reset not
asserted
VOH
Reset
asserted
VOL
Reset not
asserted
ISINK = 50µA, VCC 1.0V
ISINK = 1.2mA, VCC 2.5V
ISINK = 1.2mA, VCC 4.25V
ISOURCE = 500µA, VCC 3.0V
ISOURCE = 800µA, VCC 5.0V
ISOURCE = 1µA, VCC 1.0V
ISOURCE = 200µA, VCC 1.8V
ISOURCE = 800µA, VCC 4.25V
ISINK = 1.2mA, VCC 3.0V
ISINK = 3.2mA, VCC 5.0V
0.8 x VCC
0.8 x VCC
0.8 x VCC
0.8 x VCC
0.8 x VCC
TYP
4
5
VTH
VTH
30
1.5
30
150
VCC > VTH, RESET not asserted
MAX UNITS
5.5
5.5
V
5.5
5.5
10
µA
12
VTH
+ 1.8%
VTH
+ 3%
V
µs
2
40 ms
200
0.4
0.3 V
0.4
V
V
0.3
0.4
0.5 µA
Note 1: All parts are production tested at TA = +25°C. Overtemperature limits are guaranteed by design and not production tested.
Note 2: ISOURCE for the MAX6800 is I00nA. ISINK for the MAX6801 is 100nA. ISINK for the MAX6802 is 50µA.
2 _______________________________________________________________________________________
http://www.Datasheet4U.com/


Part Number MAX6801
Description Low-Power uP Reset Circuits
Maker Maxim
Total Page 7 Pages
PDF Download

MAX6801 Datasheet PDF

View PDF for Mobile








Similar Datasheet

1 MAX680 +5V to 10V Voltage Converters
Maxim
2 MAX6800 3-Pin / Low-Power P Reset Circuits
Maxim
3 MAX6801 Low-Power uP Reset Circuits
Maxim
4 MAX6802 Low-Power uP Reset Circuits
Maxim
5 MAX6803 4-Pin / Low-Power P Reset Circuits with Manual Reset
Maxim
6 MAX6804 4-Pin / Low-Power P Reset Circuits with Manual Reset
Maxim
7 MAX6805 4-Pin / Low-Power P Reset Circuits with Manual Reset
Maxim
8 MAX6806 Voltage Detectors
Maxim
9 MAX6807 Voltage Detectors
Maxim





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy