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MAX6348XR40-T 参数 Datasheet PDF下载

MAX6348XR40-T图片预览
型号: MAX6348XR40-T
PDF下载: 下载PDF文件 查看货源
内容描述: 3引脚,超低功耗SC70 / SOT μP复位电路 [3-Pin, Ultra-Low-Power SC70/SOT レP Reset Circuits]
分类和应用: 复位电路
文件页数/大小: 8 页 / 132 K
品牌: MAXIM [ MAXIM INTEGRATED PRODUCTS ]
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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 V
CC
supply voltage declines
below a preset threshold, keeping it asserted for at least
100ms after V
CC
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 V
CC
down to 1V. The reset compara-
tor is designed to ignore fast transients on V
CC
. 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.
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
MAX6326/MAX6327/MAX6328/MAX6346/MAX6347/MAX6348
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
Applications
Computers
Controllers
Critical µP and µC
Power Monitoring
Intelligent Instruments
Automotive
Portable/Battery-Powered
Equipment
Pin Configuration
TOP VIEW
GND
1
MAX6326
MAX6327
MAX6328
MAX6346
MAX6347
MAX6348
(RESET) RESET
2
3
V
CC
†The
MAX6326/MAX6327/MAX6328/MAX6346/MAX6347/
MAX6348 are available in factory-set V
CC
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.