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MIC2793NH-04VMT PDF预览

MIC2793NH-04VMT

更新时间: 2024-09-30 12:03:59
品牌 Logo 应用领域
麦瑞 - MICREL /
页数 文件大小 规格书
18页 718K
描述
Supervisor with High-Accuracy, Ultra-Fast Propagation Delay, and Capacitor-Programmable Reset Delay

MIC2793NH-04VMT 数据手册

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MIC2790/1/3  
Supervisor with High-Accuracy,  
Ultra-Fast Propagation Delay, and  
Capacitor-Programmable Reset Delay  
General Description  
Features  
The MIC2790/1/3 is ideal for monitoring highly-accurate  
core voltages that require rapid response in the event of a  
fault condition. The voltage supervisor IC features a  
manual reset input, enable input (MIC2793 only), a  
capacitor-programmable reset timeout delay and both an  
active-low and active-high reset output.  
1.5V to 5.5V operating supply voltage range  
Ultra-fast propagation delay (1µs typically)  
0.4V reference voltage (SNS pin)  
±1.0% threshold accuracy from 40°C to +125°C  
Monitored voltage range from 0.4V to 5.5V  
Programmable reset timeout delay (from 1ms to 10s)  
Manual reset input with an internal pull-up resistor  
Active-high enable input pin (MIC2793 only)  
The MIC2790/1/3 features multiple output options:  
Open-drain active-low (/RESET)  
The MIC2790/1/3 monitors system voltages that are in the  
range of 0.4V to 5.5V, with a typical sense accuracy of  
0.5% at +25°C and ±1.0% across 40°C to +125°C. The  
IC asserts a reset output when the sense voltage drops  
below the threshold or when the manual reset is pulled to  
a logic low. The active-low reset stays low for the duration  
of the reset timeout delay once the sense voltage returns  
to normal and the manual reset transitions to a logic high  
state. The reset timeout delay period is programmable  
from 1ms to 10s with an external capacitor.  
Push-pull active-low (/RESET)  
Push-pull active-high (RESET)  
• −40°C to 125°C junction temperature range  
6-pin TSOT-23 (MIC2790)  
The MIC2790/1/3 operates from a low supply voltage of  
1.5V to 5.5V, and is rated to operate over the temperature  
range of 40˚C to +125˚C. The MIC2790 is available in a  
6-pin TSOT-23 package or a 6-pin 2mm × 2mm × 0.55mm  
DFN package. The MIC2791 is available in a tiny 6-pin  
1.6mm × 1.6mm × 0.55mm DFN package. The MIC2793 is  
available in a 8-pin 2mm × 2mm × 0.55mm DFN package.  
6-pin 2mm × 2mm Thin DFN (MIC2790)  
6-pin 1.6mm × 1.6mm Thin DFN (MIC2791)  
8-pin 2mm × 2mm Thin DFN (MIC2793)  
Applications  
Telecom  
Computer/servers  
Medical equipment  
Portable  
Datasheets and support documentation are available on  
Micrel’s web site at: www.micrel.com.  
Set-top boxes  
Critical microprocessor monitoring  
Typical Application  
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com  
Revision 1.0  
August 23, 2013  

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