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CAT1232LPV-GT3 PDF预览

CAT1232LPV-GT3

更新时间: 2024-02-05 06:37:29
品牌 Logo 应用领域
安森美 - ONSEMI 电源电路电源管理电路监视器光电二极管
页数 文件大小 规格书
12页 185K
描述
5 V and 3.3 V Supply Monitor, Watchdog Timer, Manual Reset, with Active High & Low Resets

CAT1232LPV-GT3 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SOIC
包装说明:0.150 INCH, ROHS COMPLIANT, MS-012, SOIC-8针数:8
Reach Compliance Code:unknown风险等级:5.29
其他特性:RESET THRESHOLD VOLTAGE IS 5V可调阈值:NO
模拟集成电路 - 其他类型:POWER SUPPLY MANAGEMENT CIRCUITJESD-30 代码:R-PDSO-G8
JESD-609代码:e4长度:4.9 mm
湿度敏感等级:NOT SPECIFIED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:SOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):260座面最大高度:1.75 mm
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):1 V
标称供电电压 (Vsup):5 V表面贴装:YES
温度等级:INDUSTRIAL端子面层:NICKEL PALLADIUM GOLD
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:40
宽度:3.9 mmBase Number Matches:1

CAT1232LPV-GT3 数据手册

 浏览型号CAT1232LPV-GT3的Datasheet PDF文件第2页浏览型号CAT1232LPV-GT3的Datasheet PDF文件第3页浏览型号CAT1232LPV-GT3的Datasheet PDF文件第4页浏览型号CAT1232LPV-GT3的Datasheet PDF文件第5页浏览型号CAT1232LPV-GT3的Datasheet PDF文件第6页浏览型号CAT1232LPV-GT3的Datasheet PDF文件第7页 
CAT1232LP, CAT1832  
5 V and 3.3 V Supply Monitor, Watchdog Timer,  
Manual Reset, with Active High & Low Resets  
FEATURES  
DESCRIPTION  
„ Selectable reset voltage tolerance  
— CAT1232LP for 5 V supply  
— CAT1832 for 3.3 V supply  
The CAT1232LP and CAT1832 microprocessor  
supervisors can halt and restart a “hung-up” or  
“stalled” microprocessor, restart a microprocessor  
after a power failure, and debounce a manual/push-  
button microprocessor reset switch. The devices are  
drop in replacements for the Maxim/Dallas  
Semiconductor DS1232LP and DS1832 supervisors  
„ Selectable watchdog period:  
150 ms, 600 ms or 1.2 s  
„ Two reset outputs  
— Active high, push-pull reset output  
Precision reference and comparator circuits monitor  
the 5 V or 3.3 V system power supply voltage, VCC.  
During power-up or when the power supply falls  
outside selectable tolerance limits, both the RESET  
— Active low, open-drain reset output  
(CAT1232LP)  
— Active low, push-pull reset output (CAT1832)  
„ Debounced manual push-button reset  
„ Compact SOIC and MSOP packages  
¯¯¯¯¯¯  
and RESET become active. After the power supply  
voltage rises above the RESET threshold voltage, the  
reset signals remain active for a minimum of 250ms,  
allowing the power supply and system processor to  
stabilize. The trip-point tolerance input, TOL, selects  
the trip level tolerance to be either 5% or 10% for the  
CAT1232LP 5 V supply and 10% or 20% for the  
CAT1832 3.3 V supply.  
For Ordering Information details, see page 11.  
APPLICATIONS  
„ Microprocessor Systems  
„ Portable Equipment  
„ Controllers  
Each device has a push-pull, active HIGH reset  
output. The CAT1232LP also has an open drain,  
active LOW reset output while the CAT1832 also has  
a push-pull, active LOW reset output.  
„ Single Board Computers  
„ Instrumentations  
A debounced manual reset input activates the reset  
outputs and holds them active for a minimum period of  
250 ms after being released.  
„ Telecommunications  
Also included is a watchdog timer to reset a  
microprocessor that has stopped due to a software or  
hardware failure. Three watchdog time-out periods are  
¯¯  
selectable: 150 ms, 600 ms and 1.2 s. If the ST input  
is not strobed low before the watchdog time out period  
expires, the reset signals become active for a  
minimum of 250 ms.  
FUNCTIONAL DIAGRAM  
V
CC  
RESET  
(CAT1232LP)  
TOL  
Tolerance Selection  
Reference  
+
V
CC  
40k  
RESET  
RESET  
PBRST  
TD  
Push Button Debounce  
Watchdog Timebase Selection  
Watchdog Transition Detector  
Reset &  
Watchdog Timer  
(CAT1832)  
ST  
© 2009 SCILLC. All rights reserved.  
Characteristics subject to change without notice  
1
Doc. No. MD-3018 Rev. F  

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