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MAX16998DAUA+

更新时间： 2024-11-04 11:18:19
品牌 Logo 应用领域
美信 - MAXIM 计时器或实时时钟微控制器和处理器外围集成电路光电二极管信息通信管理高压
页数 文件大小 规格书
16页 149K
描述
High-Voltage Watchdog Timers with Adjustable Timeout Delay

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MAX16998DAUA+ 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：TSSOP
包装说明：TSSOP,针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：12 weeks
风险等级：5.17Is Samacsys：N
JESD-30 代码：S-PDSO-G8长度：3 mm
湿度敏感等级：1端子数量：8
计时器数量：1最高工作温度：125 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装形状：SQUARE
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：Not Qualified座面最大高度：1.1 mm
最大供电电压：40 V最小供电电压：5 V
标称供电电压：14 V表面贴装：YES
技术：BICMOS温度等级：AUTOMOTIVE
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3 mmuPs/uCs/外围集成电路类型：TIMER, PROGRAMMABLE
Base Number Matches：1

MAX16998DAUA+ 数据手册

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19-4000; Rev 1; 4/09  
High-Voltage Watchdog Timers with  
Adjustable Timeout Delay  
7/MAX1698  
General Description  
Features  
The MAX16997/MAX16998 are microprocessor (µP)  
supervisory circuits for high-input-voltage and low-qui-  
escent-current applications. These devices detect  
downstream circuit failures and provide switchover to  
redundant circuitry. See the Selector Guide for the dif-  
ferent versions of this product family.  
o Wide 5V to 40V Input Voltage Range  
o 18µA Quiescent Current (Typical at +125°C)  
o Capacitor-Adjustable Timeout Period for  
Watchdog and Reset  
o Windowed Watchdog Timer Options  
The MAX16997/MAX16998 family has four independent  
inputs for reset and watchdog functions. SWT and SRT  
inputs independently set the timeout periods of watch-  
dog and reset timers through external capacitors.  
RESETIN/EN monitor voltages at respective inputs. A  
resistive voltage-divider sets the reset threshold.  
(MAX16998B/D)  
o External Voltage Monitoring (RESETIN for the  
MAX16998A/B/D and EN for the MAX16997A)  
o Car Battery-Compatible EN Input  
o TTL- and CMOS-Compatible Open-Drain Outputs  
o 18V Maximum Open-Drain Reset Output Voltage  
o 28V Maximum Open-Drain Enable Output Voltage  
The MAX16998A/B/D generate two output signals,  
RESET and ENABLE. RESET asserts whenever  
RESETIN drops below its threshold voltage or when the  
watchdog timer detects a timing fault at WDI. Once  
asserted, and after all reset conditions are removed,  
o Power-On/Power-Off Reset Functionality  
RESET remains low for the reset timeout period, t  
,
RESET  
(MAX16998A/B/D Only)  
and then goes high. The MAX16997A generates one  
output signal (ENABLE) based on the voltage level at  
EN and the signal at WDI.  
o AECQ-100 Qualified  
o -40°C to +125°C Operating Temperature Range  
o Small (3mm x 3mm) µMAX Package  
o WDI Narrow Pulse Immunity  
The MAX16997A does not have a RESET output. The  
watchdog is disabled if the voltage at EN is below its  
threshold. The MAX16997A watchdog timer starts tim-  
ing when the voltage at EN becomes higher than the  
preset threshold voltage level. Each time EN rises  
above the preset threshold voltage, the initial watchdog  
timeout period is 8 times the normal watchdog timeout  
Ordering Information  
PART  
TEMP RANGE  
-40°C to +125°C  
-40°C to +125°C  
-40°C to +125°C  
-40°C to +125°C  
PIN-PACKAGE  
period (t ).  
WP  
MAX16997AAUA+  
MAX16998AAUA+  
MAX16998BAUA+  
MAX16998DAUA+  
8 µMAX  
The MAX16997/MAX16998 are available in 8-pin lead-  
®
free µMAX packages and are fully specified over the  
8 µMAX  
-40°C to +125°C automotive temperature range.  
8 µMAX  
8 µMAX  
Applications  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
Automotive  
Industrial  
Selector Guide  
WATCHDOG  
WINDOW SIZE (%)  
PART  
ENABLE  
RESET  
EN  
RESETIN  
MAX16997A  
MAX16998A  
MAX16998B  
MAX16998D  
100  
100  
50  
✓
✓
✓
✓
—
✓
✓
✓
✓
—
✓
✓
✓
—
—
—
75  
Pin Configurations appear at end of data sheet.  
µMAX is a registered trademark of Maxim Integrated Products, Inc.  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,  
or visit Maxim’s website at www.maxim-ic.com.  
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MAX16998DAUA+ 替代型号

型号 品牌 替代类型 描述 数据表
MAX16998AAUA+T MAXIM

完全替代

 暂无描述
MAX16998AAUA/V+T MAXIM

完全替代

 Timer or RTC, CMOS,
MAX16998AAUA+ MAXIM

完全替代

 High-Voltage Watchdog Timers with Adjustable Timeout Delay

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