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参数资料
型号： MAX690RCSA-T
厂商： MAXIM INTEGRATED PRODUCTS INC
元件分类： 电源管理
英文描述： 3.0V/3.3V Microprocessor Supervisory Circuits
中文描述： 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8
封装： 0.150 INCH, PLASTIC, SO-8
文件页数： 1/12页
文件大小： 281K
代理商： MAX690RCSA-T
_______________General Description
These microprocessor (P) supervisory circuits reduce
the complexity and number of components required for
power-supply monitoring and battery-control functions
in P systems. They significantly improve system relia-
bility 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:
________________________Applications
Battery-Powered Computers and Controllers
Embedded Controllers
Intelligent Instruments
Automotive Systems
Critical P Power Monitoring
Portable Equipment
____________________________Features
–
R
—
E
—
S
—
E
—
T
–
and RESET Outputs
Manual Reset Input
Precision Supply-Voltage Monitor
200ms Reset Time Delay
Watchdog Timer (1.6s timeout)
Battery-Backup Power Switching—
Battery Can Exceed VCC in Normal Operation
40A VCC Supply Current
1A Battery Supply Current
Voltage Monitor for Power-Fail or
Low-Battery Warning
Guaranteed
–
R
—
E
—
S
—
E
—
T
–
Assertion to VCC = 1V
8-Pin DIP and SO Packages
______________Ordering Information
MAX690T/S/R,
704T/S/R,
802T/S/R,
804–806T/S/R
3.0V/3.3V Microprocessor Supervisory Circuits
________________________________________________________________ Maxim Integrated Products
1
MAX690T/S/R
MAX802T/S/R
MAX804T/S/R
MAX805T/S/R
0.1
μF
VOUT
RESET
(RESET)
PFO
WDI
R1
VBATT
VCC
GND
VCC
0.1
μF
0.1
μF
3.6V
LITHIUM
BATTERY
CMOS RAM
μP
VCC
RESET
NMI
I/O LINE
UNREGULATED
DC
REGULATED +3.3V OR +3.0V
R2
BUS
( ) ARE FOR MAX804T/S/R, MAX805T/S/R
PFI
See last page for MAX704T/S/R, MAX806T/S/R.
__________________Pin Configuration
1
2
3
4
8
7
6
5
DIP/SO
TOP VIEW
PFO
VBATT
RESET (RESET)
WDI
<MR>
VOUT
VCC
GND
PFI
MAX690T/S/R
MAX704T/S/R
MAX802T/S/R
MAX804T/S/R
MAX805T/S/R
MAX806T/S/R
( ) ARE FOR MAX804T/S/R, MAX805T/S/R
< > ARE FOR MAX704T/S/R, MAX806T/S/R
_________Typical Operating Circuits
19-0243; Rev 2; 12/05
PART**
TEMP RANGE
MAX690_CPA
0°C to +70°C
MAX690_CSA
0°C to +70°C
MAX690_C/D
0°C to +70°C
Dice*
8 SO
8 Plastic DIP
PIN-PACKAGE
Part
MAX690_EPA
-40°C to +85°C
MAX690_ESA
-40°C to +85°C
MAX690_MJA
-55°C to +125°C
8 CERDIP
8 SO
8 Plastic DIP
Active-Low
Reset
Active-High
Reset
Watchdog
Input
Manual
Reset
Input
Backup-Battery
Switch
Power-Fail
Threshold
Accuracy
Power-Fail
Comparator
Reset
Window
MAX690
±4%
±75mV
MAX704
±4%
±75mV
MAX802
±2%
±2%
MAX804
±2%
±2%
MAX805
±4%
±75mV
MAX806
±2%
±2%
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-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.
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
相关PDF资料
PDF描述
MAX690RESA-T 3.0V/3.3V Microprocessor Supervisory Circuits
MAX690SCSA-T 3.0V/3.3V Microprocessor Supervisory Circuits
MAX690SESA-T 3.0V/3.3V Microprocessor Supervisory Circuits
MAX690TCSA-T 3.0V/3.3V Microprocessor Supervisory Circuits
MAX690TESA-T 3.0V/3.3V Microprocessor Supervisory Circuits
相关代理商/技术参数
参数描述
MAX690REPA 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel
MAX690REPA+ 功能描述:监控电路 MPU Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel
MAX690RESA 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel
MAX690RESA+ 功能描述:监控电路 MPU Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel
MAX690RESA+T 功能描述:监控电路 MPU Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel
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