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CAT811STBI-GT3 参数 Datasheet PDF下载

CAT811STBI-GT3图片预览
型号: CAT811STBI-GT3
PDF下载: 下载PDF文件 查看货源
内容描述: 4引脚微处理器电源监控电路,带有手动复位 [4-Pin Microprocessor Power Supply Supervisors with Manual Reset]
分类和应用: 电源电路电源管理电路微处理器光电二极管监控输入元件
文件页数/大小: 11 页 / 222 K
品牌: CATALYST [ CATALYST SEMICONDUCTOR ]
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CAT811, CAT812
4-Pin Microprocessor Power Supply Supervisors
with Manual Reset
FEATURES
Precision monitoring of
+5.0 V (± 5%, ± 10%, ± 20%),
+3.3 V (± 5%, ± 10%),
+3.0 V (± 10%) and
+2.5 V (± 5%) power supplies
Manual reset input
Offered in two output configurations:
CAT811: Active LOW reset
CAT812: Active HIGH reset
Direct replacements for the MAX811 and
MAX812 in applications operating over the
industrial temperature range
Reset valid down to V
CC
= 1.0V
6µA power supply current
Power supply transient immunity
Available in SOT-143 packages with Sn or
NiPdAu Green Lead finishes.
Industrial temperature range: -40ºC to +85ºC
DESCRIPTION
The CAT811 and CAT812 are microprocessor supervi-
sory circuits that monitor power supplies. The CAT811
and CAT812 are direct replacements for the MAX811
and MAX812 in applications operating over the industrial
temperature range; both have a manual reset input.
These devices generate a reset signal, which is
asserted while the power supply voltage is below a
preset threshold level and for at least 140ms after the
power supply level has risen above that level. The
2(TM)
used by
underlying floating gate technology, AE
Catalyst Semiconductor, makes it possible to offer any
custom reset threshold value. Seven industry
standard threshold levels are offered to support
+5.0V, +3.3V, +3.0V and +2.5V systems.
The CAT811 features a RESET push-pull output
(active LOW) and the CAT812 features a RESET
push-pull output (active HIGH).
Fast transients on the power supply are ignored and
the output is guaranteed to be in the correct state at
Vcc levels as low as 1.0 V.
The CAT811/812 are fully specified over the industrial
temperature range (-40°C to 85°C) and are available
in a compact 4-pin SOT-143 package.
APPLICATION
Computers, Servers, Laptops
Cable modems
Wireless communications
Embedded control systems
White goods
Power meters
Intelligent instruments
PDAs and handheld equipment
THRESHOLD SUFFIX SELECTOR
DESCRIPTION
Nominal Threshold
Voltage
4.63V
4.38V
4.00V
3.08V
2.93V
2.63V
2.32V
Threshold Suffix
Designation
L
M
J
T
S
R
Z
PIN CONFIGURATION
GND
1
CAT811
CAT812
¯¯¯¯¯¯
RESET
2
3
¯¯¯
MR
4
V
CC
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. MD-3005 Rev. S