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Datasheet > LTC690IN8#PBF
LTC690IN8#PBF PDF预览

LTC690IN8#PBF

更新时间： 2024-09-15 20:43:35
品牌 Logo 应用领域
凌特 - Linear 光电二极管
页数 文件大小 规格书
20页 269K
描述
LTC690 - Microprocessor Supervisory Circuits; Package: PDIP; Pins: 8; Temperature Range: -40°C to 85°C

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中文翻译

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LTC690IN8#PBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：DIP包装说明：DIP, DIP8,.3
针数：8Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.13可调阈值：NO
模拟集成电路 - 其他类型：POWER SUPPLY MANAGEMENT CIRCUITJESD-30 代码：R-PDIP-T8
JESD-609代码：e3湿度敏感等级：1
信道数量：1功能数量：1
端子数量：8最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：DIP封装等效代码：DIP8,.3
封装形状：RECTANGULAR封装形式：IN-LINE
峰值回流温度（摄氏度）：NOT SPECIFIED电源：5 V
认证状态：Not Qualified座面最大高度：3.937 mm
子类别：Power Management Circuits最大供电电流 (Isup)：2.5 mA
最大供电电压 (Vsup)：5.5 V最小供电电压 (Vsup)：4.75 V
标称供电电压 (Vsup)：5 V表面贴装：NO
技术：CMOS温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn)端子形式：THROUGH-HOLE
端子节距：2.54 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：7.62 mm
Base Number Matches：1

LTC690IN8#PBF 数据手册

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LTC690/LTC691  
LTC694/LTC695  
Microprocessor  
Supervisory Circuits  
FeaTures  
DescripTion  
The LTC®690 family, LTC690/LTC691/LTC694/LTC695,  
provides complete power supply monitoring and battery  
control functions for microprocessor reset, battery back-  
up, CMOS RAM write protection, power failure warning  
and watchdog timing. A precise internal voltage reference  
and comparator circuit monitor the power supply line.  
When an out-of-tolerance condition occurs, the reset  
outputs are forced to active states and the chip enable  
output unconditionally write-protects external memory.  
In addition, the RESET output is guaranteed to remain  
n
Guaranteed Reset Assertion at V = 1V  
CC  
n
1.5mA Maximum Supply Current  
n
Fast (35ns Max) Onboard Gating of RAM Chip  
Enable Signals  
SO-8 and S16 Packaging  
4.65V Precision Voltage Monitor  
n
n
n
Power OK/Reset Time Delay: 50ms, 200ms  
or Adjustable  
n
Minimum External Component Count  
n
1µA Maximum Standby Current  
n
Voltage Monitor for Power-Fail  
logic low even with V as low as 1V.  
CC  
or Low Battery Warning  
Thermal Limiting  
The LTC690 family powers the active CMOS RAMs with a  
charge pumped NMOS power switch to achieve low drop-  
out and low supply current. When primary power is lost,  
auxiliary power, connected to the battery input pin, powers  
the RAMs in standby through an efficient PMOS switch.  
n
n
Performance Specified Over Temperature  
Superior Upgrade for MAX690 Family  
n
applicaTions  
Foranearlywarningofimpendingpowerfailure,theLTC690  
family provides an internal comparator with a user-defined  
threshold.Aninternalwatchdogtimerisalsoavailable,which  
forces the reset pins to active states when the watchdog  
input is not toggled prior to a preset timeout period.  
n
Critical µP Power Monitoring  
n
Intelligent Instruments  
n
Battery-Powered Computers and Controllers  
Automotive Systems  
n
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. All other trademarks are the property of their respective owners.  
Typical applicaTion  
RESET Output Voltage  
vs Supply Voltage  
5
LT®1086-5  
T
= 25°C  
A
V
IN  
≥ 7.5V  
5V  
EXTERNAL PULL-UP = 10µA  
= 0V  
POWER TO  
µP  
V
V
V
CC  
V
IN  
OUT  
V
OUT  
BATT  
4
3
+
+
CMOS RAM POWER  
0.1µF  
3V  
0.1µF  
LTC690/LTC691  
LTC694/LTC695  
100µF  
10µF  
ADJ  
µP  
SYSTEM  
V
BATT  
µP RESET  
µP NMI  
RESET  
PFO  
51k  
10k  
2
1
0
I/O LINE  
PFI  
WDI  
GND  
690 TA01  
0.1µF 100Ω  
MICROPROCESSOR RESET, BATTERY BACK-UP, POWER FAILURE  
WARNING AND WATCHDOG TIMING ARE ALL IN A SINGLE CHIP  
FOR MICROPROCESSOR SYSTEMS  
0
1
2
3
4
5
SUPPLY VOLTAGE (V)  
690 TA02  
690ff  
1
For more information www.linear.com/690  
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中文翻译

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LTC690IN8#PBF 替代型号

型号 品牌 替代类型 描述 数据表
MAX690MJA/883B MAXIM

类似代替

 Power Supply Management Circuit, Fixed, 1 Channel, CMOS, CDIP8, CERDIP-8
ADM690AQ ADI

功能相似

 Microprocessor Supervisory Circuits

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