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PDF MAX6327 Data sheet ( Hoja de datos )
| Número de pieza | MAX6327 | |
| Descripción | 3-Pin / Ultra-Low-Power SC70/SOT P Reset Circuits | |
| Fabricantes | Maxim Integrated | |
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19-1294; Rev 3; 1/00
3-Pin, Ultra-Low-Power SC70/SOT
µP Reset Circuits
General Description
The MAX6326/MAX6327/MAX6328/MAX6346/MAX6347/
MAX6348 microprocessor (µP) supervisory circuits moni-
tor the power supplies in µP and digital systems. These
devices provide excellent circuit reliability and low cost
by eliminating external components and adjustments
when used with 2.5V, 3V, 3.3V, and 5V powered circuits.
These circuits perform a single function: they assert a
reset signal whenever the VCC supply voltage declines
below a preset threshold, keeping it asserted for at least
100ms after VCC has risen above the reset threshold.
The only difference between the devices is their output.
The MAX6326/MAX6346 (push-pull) and MAX6328/
MAX6348 (open-drain) have an active-low reset output.
The MAX6327/MAX6347 have an active-high push-pull
reset output. All of these parts are guaranteed to be in
the correct state for VCC down to 1V. The reset compara-
tor is designed to ignore fast transients on VCC. Reset
thresholds are factory-trimmable between 2.2V and
4.63V, in approximately 100mV increments. Twenty-one
standard versions are available. Contact the factory for
availability of nonstandard versions.
Ultra-low supply currents (1µA max for the MAX6326/
MAX6327/MAX6328) make these parts ideal for use in
portable equipment. All six devices are available in
space-saving SOT23 and SC70 packages.
Computers
Controllers
Critical µP and µC
Power Monitoring
Applications
Intelligent Instruments
Automotive
Portable/Battery-Powered
Equipment
Pin Configuration
TOP VIEW
GND 1
(RESET) RESET 2
MAX6326
MAX6327
MAX6328
MAX6346
MAX6347
MAX6348
3 VCC
Features
o Ultra-Low 1µA (max) Supply Current
(MAX6326/MAX6327/MAX6328)
o Precision Monitoring of 2.5V, 3V, 3.3V, and 5V
Power-Supply Voltages
o Reset Thresholds Available from 2.2V to 4.63V
o Fully Specified Over Temperature
o 100ms (min) Power-On Reset Pulse Width
o Low Cost
o Available in Three Versions: Push-Pull RESET,
Push-Pull RESET, and Open-Drain RESET
o Power-Supply Transient Immunity
o No External Components
o 3-Pin SC70/SOT23 Packages
o Pin Compatible with MAX803/MAX809/MAX810
Ordering Information
PART†
MAX6326XR_ _-T
MAX6326UR_ _-T
MAX6327XR_ _-T
MAX6327UR_ _-T
MAX6328XR_ _-T
MAX6328UR_ _-T
MAX6346XR_ _-T
MAX6346UR_ _-T
MAX6347XR_ _-T
MAX6347UR_ _-T
MAX6348XR_ _-T
MAX6348UR_ _-T
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
3 SC70-3
3 SOT23-3
3 SC70-3
3 SOT23-3
3 SC70-3
3 SOT23-3
3 SC70-3
3 SOT23-3
3 SC70-3
3 SOT23-3
3 SC70-3
3 SOT23-3
†The MAX6326/MAX6327/MAX6328/MAX6346/MAX6347/
MAX6348 are available in factory-set VCC reset thresholds from
2.2V to 4.63V, in approximately 0.1V increments. Choose the
desired reset-threshold suffix from Table 1 and insert it in the
blank spaces following “R.” There are 21 standard versions with
a required order increment of 2500 pieces. Sample stock is gen-
erally held on the standard versions only (see the Selector
Guide). Required order increment is 10,000 pieces for nonstan-
dard versions (Table 2). Contact factory for availability. All
devices available in tape-and-reel only.
Selector Guide appears at end of data sheet.
SOT23-3/SC70-3
( ) ARE FOR THE MAX6327/MAX6347.
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
1 page  
3-Pin, Ultra-Low-Power SC70/SOT
µP Reset Circuits
Table 1. Factory-Trimmed Reset Thresholds‡ (continued)
PART
SUFFIX
MAX634_ _R
39
MIN
3.841
RESET THRESHOLD VOLTAGE, VTH (V)
TA = +25°C
TA = -40°C to +85°C
TYP MAX MIN MAX
3.900
3.958
3.802
3.997
MAX634_ _R
40
3.940
4.000
4.060
3.900
4.100
MAX634_ _R
MAX634_ _R
MAX634_ _R
MAX634_ _R
MAX634_ _R
MAX634_ _R
41
42
43
44
45
46
4.038
4.137
4.235
4.314
4.432
4.560
4.100
4.200
4.300
4.380
4.500
4.630
4.161
4.263
4.364
4.446
4.567
4.699
3.997
4.095
4.192
4.270
4.387
4.514
4.202
4.305
4.407
4.489
4.612
4.746
‡Factory-trimmed reset thresholds are available in approximately 100mV increments with a 1.5% room-temperature variance.
Table 2. Device Marking Codes and Minimum Order Increments
PART
MAX6346_R46-T
MAX6346_R45-T
MAX6346_R44-T
MAX6346_R43-T
MAX6346_R42-T
MAX6346_R41-T
MAX6346_R40-T
MAX6346_R39-T
MAX6346_R38-T
MAX6346_R37-T
MAX6346_R36-T
MAX6346_R35-T
MAX6346_R34-T
MAX6346_R33-T
MAX6326_R31-T
MAX6326_R30-T
MAX6326_R29-T
MAX6326_R28-T
MAX6326_R27-T
MAX6326_R26-T
MAX6326_R25-T
MAX6326_R24-T
MAX6326_R23-T
MAX6326_R22-T
TOP MARK
SOT23
FZBI
FZBH
FZBG
FZBF
FZBE
FZBD
FZBC
FZBB
FZBA
FZAZ
FZAY
FZAX
FZAW
FZAV
FDAA
FEAA
FCAA
FBAA
FAAA
EZAA
EYAA
EXAA
EWAA
EHAA
SC70
ACO
–
ACK
–
–
–
–
–
–
–
–
–
–
–
ACE
–
ACP
–
–
ACI
–
–
ACH
AAH
ORDER
INCREMENT
(k)
2.5
10
2.5
10
10
10
10
10
10
10
10
10
10
10
2.5
10
2.5
10
10
2.5
10
10
2.5
2.5
PART
MAX6347_R46-T
MAX6347_R45-T
MAX6347_R44-T
MAX6347_R43-T
MAX6347_R42-T
MAX6347_R41-T
MAX6347_R40-T
MAX6347_R39-T
MAX6347_R38-T
MAX6347_R37-T
MAX6347_R36-T
MAX6347_R35-T
MAX6347_R34-T
MAX6347_R33-T
MAX6327_R31-T
MAX6327_R30-T
MAX6327_R29-T
MAX6327_R28-T
MAX6327_R27-T
MAX6327_R26-T
MAX6327_R25-T
MAX6327_R24-T
MAX6327_R23-T
MAX6327_R22-T
TOP MARK
SOT23
FZBW
FZBV
FZBU
FZBT
FZBS
FZBR
FZBQ
FZBP
FZBO
FZBN
FZBM
FZBL
FZBK
FZBJ
FMAA
FNAA
FLAA
FKAA
FJAA
FIAA
FHAA
FGAA
FFAA
EIAA
SC70
ACF
–
ACL
–
–
–
–
–
–
–
–
–
–
–
ACT
–
ACS
–
–
ACR
–
–
ACQ
AAI
ORDER
INCREMENT
(k)
2.5
10
2.5
10
10
10
10
10
10
10
10
10
10
10
2.5
10
2.5
10
10
2.5
10
10
2.5
2.5
_______________________________________________________________________________________ 5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet MAX6327.PDF ] | |
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