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LTC693CSW PDF预览

LTC693CSW

更新时间: 2024-09-27 19:56:35
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 253K
描述
LTC693 - Microprocessor Supervisory Circuits; Package: SO; Pins: 16; Temperature Range: 0°C to 70°C

LTC693CSW 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:0.300 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:3.7可调阈值:NO
模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUITJESD-30 代码:R-PDSO-G16
JESD-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:70 °C最低工作温度:
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标称供电电压 (Vsup):5 V
表面贴装:YES技术:CMOS
温度等级:COMMERCIAL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 mmBase Number Matches:1

LTC693CSW 数据手册

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LTC692/LTC693  
Microprocessor  
Supervisory Circuits  
FEATURES  
DESCRIPTION  
The LTC®692/LTC693 provide complete power supply  
monitoringandbatterycontrolfunctionsformicroproces-  
sor reset, battery backup, CMOS RAM write protection,  
power failure warning and watchdog timing. A precise  
internal voltage reference and comparator circuit monitor  
thepowersupplyline. Whenanout-of-tolerancecondition  
occurs,theresetoutputsareforcedtoactivestatesandthe  
chipenableoutputunconditionallywrite-protectsexternal  
memory. In addition, the RESET output is guaranteed to  
n
Guaranteed Reset Assertion at V = 1V  
CC  
n
n
1.5mA Maximum Supply Current  
Fast (35ns Maximum) Onboard Gating of RAM Chip  
Enable Signals  
n
n
n
n
n
4.40V Precision Voltage Monitor  
Power OK/Reset Time Delay: 200ms or Adjustable  
Minimum External Component Count  
1μA Maximum Standby Current  
Voltage Monitor for Power-Fail or Low Battery  
Warning  
remain logic low even with V as low as 1V.  
CC  
n
n
n
n
Thermal Limiting  
The LTC692/LTC693 power 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.  
Performance Specified Over Temperature  
Superior Upgrade for MAX690 Family  
SO8 and SO16 Packaging  
APPLICATIONS  
For an early warning of impending power failure, the  
LTC692/LTC693 provide an internal comparator with a  
user-defined threshold. An internal watchdog timer is  
also available, 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
T
= 25°C  
A
EXTERNAL PULL-UP = 10μA  
= 0V  
LT1086-5  
V
≥ 7.5V  
IN  
5V  
V
BATT  
4
3
POWER TO  
μP  
V
V
V
CC  
V
IN  
OUT  
OUT  
+
+
CMOS RAM POWER  
0.1μF  
3V  
0.1μF  
LTC692  
LTC693  
100μF  
10μF  
ADJ  
μP  
SYSTEM  
V
BATT  
μP RESET  
μP NMI  
RESET  
PFO  
2
1
0
51k  
10k  
I/O LINE  
PFI  
WDI  
692_3 • TA01  
0.1μF  
100Ω  
MICROPROCESSOR RESET, BATTERY BACKUP, POWER FAILURE  
WARNING AND WATCHDOG TIMING ARE ALL IN A SINGLE CHIP  
FOR MICROPROCESSOR SYSTEMS  
0
1
2
3
4
5
SUPPLY VOLTAGE (V)  
692_3 • TA02  
0692fb  
1

LTC693CSW 替代型号

型号 品牌 替代类型 描述 数据表
LTC693CSW#PBF Linear

完全替代

LTC693 - Microprocessor Supervisory Circuits; Package: SO; Pins: 16; Temperature Range: 0&

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