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LTC695ISW PDF预览

LTC695ISW

更新时间: 2024-11-08 22:51:47
品牌 Logo 应用领域
凌特 - Linear 电源电路电源管理电路微处理器光电二极管监控
页数 文件大小 规格书
16页 144K
描述
Microprocessor Supervisory Circuits

LTC695ISW 技术参数

是否Rohs认证: 不符合生命周期:Transferred
零件包装代码:SOIC包装说明:0.150 INCH, PLASTIC, SOP-16
针数:16Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.1Is Samacsys:N
可调阈值:NO模拟集成电路 - 其他类型:POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 代码:R-PDSO-G16JESD-609代码:e0
长度:10.3 mm湿度敏感等级:1
信道数量:1功能数量:1
端子数量:16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:SOP封装等效代码:SOP16,.4
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):235电源:5 V
认证状态:Not Qualified座面最大高度:2.65 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:YES
技术:CMOS温度等级:INDUSTRIAL
端子面层:Tin/Lead (Sn/Pb)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:20宽度:7.5 mm
Base Number Matches:1

LTC695ISW 数据手册

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LTC690/ LTC691  
LTC694/ LTC695  
Mic ro p ro c e sso r  
Sup e rviso ry Circ uits  
U
FEATURES  
DESCRIPTIO  
The LTC®690 family provides complete power supply  
monitoringandbatterycontrolfunctions formicroproces-  
sor reset, battery back-up, CMOS RAM write protection,  
power failure warning and watchdog timing. A precise  
internal voltage reference and comparator circuit monitor  
thepowersupplyline. Whenanout-of-tolerancecondition  
occurs,theresetoutputs areforcedtoactivestates andthe  
chipenableoutputunconditionallywrite-protects external  
memory. In addition, the RESET output is guaranteed to  
UL Recognized  
Guaranteed Reset Assertion at V = 1V  
1.5mA Maximum Supply Current  
Fast (35ns Max) Onboard Gating of RAM Chip  
Enable Signals  
File # E145770  
®
CC  
SO-8 and S16 Packaging  
4.65V Precision Voltage Monitor  
Power OK/Reset Time Delay: 50ms, 200ms  
or Adjustable  
Minimum External Component Count  
1µA Maximum Standby Current  
Voltage Monitor for Power-Fail  
or Low-Battery Warning  
Thermal Limiting  
Performance Specified Over Temperature  
Superior Upgrade for MAX690 Family  
remain logic low even with V as low as 1V.  
CC  
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,  
auxiliarypower,connectedtothebatteryinputpin,powers  
the RAMs in standby through an efficient PMOS switch.  
For an early warning of impending power failure, the  
LTC690 family provides an internal comparator with a  
user-definedthreshold. Aninternalwatchdogtimeris also  
available, which forces the reset pins to active states when  
thewatchdoginputis nottoggledpriortoapresettime-out  
period.  
U
APPLICATIO S  
Critical µP Power Monitoring  
Intelligent Instruments  
Battery-Powered Computers and Controllers  
Automotive Systems  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
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  
CMOS RAM POWER  
µP  
V
IN  
V
OUT  
V
CC  
V
OUT  
V
BATT  
+
+
4
3
0.1µF  
0.1µF  
LTC690/LTC691  
LTC694/LTC695  
V
BATT  
100µF  
10µF  
ADJ  
µP  
SYSTEM  
3V  
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  
1

LTC695ISW 替代型号

型号 品牌 替代类型 描述 数据表
MAX695CWE MAXIM

类似代替

Power Supply Supervisor
MAX695CWE+ MAXIM

功能相似

Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO16, LEAD FREE, SOP-16

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