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IMP1810 参数 Datasheet PDF下载

IMP1810图片预览
型号: IMP1810
PDF下载: 下载PDF文件 查看货源
内容描述: 低功耗,, 5V - Ressett- Acttiive低,,公开赛 - Draiin Outtputt [Low Power,, 5V - Ressett- Acttiive LOW,, Open--Draiin Outtputt]
分类和应用:
文件页数/大小: 36 页 / 1778 K
品牌: A1PROS [ A1 PROS CO., LTD. ]
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IMP1817  
Application Information  
Operation – Power Monitor  
The IMP1817 detects out-of-tolerance power supply conditions. It  
resets a processor during power-up, power-down and issues a  
reset to the system processor when the monitored power supply  
voltage is below the reset threshold. When an out-of-tolerance VCC  
voltage is detected, the RESET signal is asserted. On power-up,  
RESET is kept active (HIGH) for approximately 150ms after the  
power supply voltage has reached the selected tolerance. This  
allows the power supply and microprocessor to stabilize before  
RESET is released.  
tR  
VCCTP (MAX)  
VCCTP  
VCCTP (MIN)  
IMP1817  
Microprocessor  
VIN  
tRPU  
RESET  
RESET  
VOL  
RESET  
1817_07.eps  
1815_07.eps  
Figure 2. Timing Diagram: Power-Up  
Figure 1. RESET Valid to 0V VCC  
tF  
VCC  
VCCTP (MAX)  
VCCTP  
VCCTP (MIN)  
tRPD  
VOH  
RESET Slews with VCC  
RESET  
1817_08.eps  
Figure 3. Timing Diagram: Power-Down  
408-432-9100/www.impweb.com  
© 1999 IMP, Inc.  
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