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参数资料
| 型号： | AS1918V-T |
| 厂商： | ams |
| 文件页数： | 8/15页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR ACT LOW SOT23-5 |
| 标准包装： | 1 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 复位超时： | 最小为 100 ms |
| 电压 - 阀值： | 1.58V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-23-5 |
| 包装： | 标准包装 |
| 其它名称： | AS1918V-TDKR |
AS1916 - AS1918
Datasheet - D e t a i l e d D e s c r i p t i o n
8 Detailed Description
The AS1916 - AS1918 supervisory circuits were designed to generate a reset when the monitored supply voltage falls below its factory-trimmed
trip threshold (see V TH on page 4 ), and to maintain the reset for a minimum timeout period (see t RP on page 4 ) after the supply has stabilized.
The integrated watchdog timer (see Watchdog Input on page 8) helps mitigate against bad programming code or clock signals, and/or poor
peripheral response.
The active-low manual reset input (see Manual Reset Input on page 8) allows for an externally activated system reset.
8.1 RESET/RESETN
Whenever the monitored supply voltage falls below its reset threshold, the RESET output asserts low or the RESETN output asserts high. Once
the monitored voltage has stabilized, an internal timer keeps the reset asserted for the reset timeout period (t RP ). After the t RP period, the
RESET/RESETN output returns to its original state (seeFigure10).
Figure 9. Functional Diagram of V CC Supervisory Application
5
VCC
AS1916 - AS1918
Reset Timeout Delay
Generator
1
RESETN/
RESET
3
MRN
+
–
1.26V
V CC
4
WDI
Watchdog Transition
Detector
Watchdog
Timer
2
GND
Figure 10. Reset Timing Diagram
VCC
1V
V TH
V TH
1V
RESETN
RESET
GND
www.austriamicrosystems.com/Supervisors/AS1916
t RP
t RP
Revision 1.04
t RD
t RD
7 - 14
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AS1918Z-T | 功能描述:IC SUPERVISOR ACT LOW SOT23-5 RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 其它有关文件:STM6905 View All Specifications 标准包装:1 系列:- 类型:多压监控器 监视电压数目:5 输出:开路漏极或开路集电极 复位:低有效 复位超时:最小为 140 ms 电压 - 阀值:2.188V，2.955V，可调，可调，可调 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-TSSOP 包装:Digi-Reel® 产品目录页面:1197 (CN2011-ZH PDF) 其它名称:497-8728-6 |
| AS191R0FLF | 制造商:TT Electronics / IRC 功能描述:AS191R0FLF |
| AS191R0HLF | 制造商:TT Electronics / IRC 功能描述:AS191R0HLF |
| AS191R0JLF | 制造商:TT Electronics / IRC 功能描述:AS191R0JLF |
| AS1920 | 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:Triple-Voltage, Micro-Power Microprocessor Supervisory Circuits |
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