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MAX690TC-D

产品描述Supervisory Circuits 3.0V/3.3V Microprocessor Supervisory Circuit with Reset Threshold of 3.075V
产品类别半导体    电源管理   
文件大小1MB,共13页
制造商Maxim(美信半导体)
官网地址https://www.maximintegrated.com/en.html
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MAX690TC-D概述

Supervisory Circuits 3.0V/3.3V Microprocessor Supervisory Circuit with Reset Threshold of 3.075V

MAX690TC-D规格参数

参数名称属性值
产品种类
Product Category
Supervisory Circuits
制造商
Manufacturer
Maxim(美信半导体)
类型
Type
Voltage Supervisory
阈值电压
Threshold Voltage
4.65 V
被监测输入数
Number of Inputs Monitored
1 Input
输出类型
Output Type
Active Low, Push-Pull
人工复位
Manual Reset
No Manual Reset
看门狗计时器
Watchdog Timers
Watchdog
Battery Backup SwitchingBackup
电源电压-最大
Supply Voltage - Max
5.5 V
Chip Enable SignalsNo Chip Enable
工作电源电流
Operating Supply Current
350 uA
Power Fail DetectionYes
电源电压-最小
Supply Voltage - Min
1 V

文档预览

下载PDF文档
MAX690T/S/R, MAX704T/S/R,
MAX802T/S/R, MAX804‒MAX806T/S/R
3.0V/3.3V Microprocessor
Supervisory Circuits
General Description
These microprocessor (µP) supervisory circuits reduce the
complexity and number of components required for pow-
er-supply monitoring and battery-control functions in µP
systems. They significantly improve system reliability and
accuracy compared to separate ICs or discrete components.
These devices are designed for use in systems powered
by 3.0V or 3.3V supplies. See the selector guide in the
back of this data sheet for similar devices designed for
5V systems. The suffixes denote different reset threshold
voltages: 3.075V (T), 2.925V (S), and 2.625V (R) (see the
Reset Threshold
section in the
Detailed Description).
All
these parts are available in 8-pin DIP and SO packages.
Functions offered in this series are as follows:
ow
ind
tW
se
Re
ail
r-F or
we rat
Po a
mp
Co
ail
r-F y
we rac
Po cu
Ac
ld
ery
ho
att h
res
-B itc
Th
up Sw
ck
Ba
t
se
Re ut
al Inp
Ac
tiv
e-H
igh
Re
se
t
R1
R2
Features
RESET
and RESET Outputs
Manual Reset Input
Precision Supply-Voltage Monitor
200ms Reset Time Delay
Watchdog Timer (1.6sec timeout)
Battery-Backup Power Switching—Battery Can
Exceed V
CC
in Normal Operation
40µA V
CC
Supply Current
1µA Battery Supply Current
Voltage Monitor for Power-Fail or Low-Battery
Warning
Guaranteed
RESET
Assertion to V
CC
= 1V
8-Pin DIP and SO Packages
Battery-Powered Computers and Controllers
Embedded Controllers
Intelligent Instruments
Critical µP Power Monitoring
Portable Equipment
Applications
MAX690
MAX704
MAX802
MAX804
MAX805
MAX806
Typical Operating Circuits
REGULATED +3.3V OR +3.0V
UNREGULATED
DC
V
CC
0.1µF
V
CC
RESET
(RESET)
Typical Operating Circuits continued at at end of data
sheet.
19-0243; Rev 3; 4/15
Ac
tiv
e-L
Wa
tch
g
do
Ma
nu
( ) ARE FOR MAX804T/S/R, MAX805T/S/R
ow
Re
se
t
Inp
ut
±4%
±4%
±2%
±2%
±4%
±2%
±75mV
±75mV
±2%
±2%
±75mV
±2%
Ordering Information
PART**
MAX690_CPA
MAX690_CSA
MAX690_C/D
MAX690_EPA
MAX690_ESA
TEMP RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
PIN-PACKAGE
8 Plastic DIP
8 SO
Dice*
8 Plastic DIP
8 SO
8 CERDIP
µP
MAX690_MJA
RESET
NMI
I/O LINE GND
BUS
V
CC
CMOS RAM
GND
3.6V
LITHIUM
BATTERY
0.1µF
MAX690T/S/R
PFO
PFI
MAX802T/S/R
WDI
MAX804T/S/R
MAX805T/S/R
VBATT
GND
V
OUT
0.1µF
Ordering Information continued at end of data sheet.
*Contact
factory for dice specifications.
**These
parts offer a choice of reset threshold voltage. Select
the letter corresponding to the desired nominal reset threshold
voltage (T = 3.075V, S = 2.925V, R = 2.625V) and insert it into
the blank to complete the part number.
Devices in PDIP and SO packages are available in both leaded
and lead(Pb)-free packaging. Specify lead free by adding the +
symbol at the end of the part number when ordering. Lead free
not available for CERDIP package.
Pin Configuration appears at end of data sheet.
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