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參數資料
| 型號： | MIC2753 |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | Power Supply Supervisors(電源監控器（帶低壓和過壓檢測）) |
| 中文描述： | 電源監控器（電源監控器（帶低壓和過壓檢測）） |
| 文件頁數： | 1/12頁 |
| 文件大?。?/td> | 124K |
| 代理商： | MIC2753 |
June 1999
1
MIC2753/2754
MIC2753/2754
Micrel
MIC2753/2754
Power Supply Supervisors
Preliminary Information
General Description
The MIC2753 and MIC2754 are ultraminiature, full-featured,
power supply supervisors featuring active-high and active-
low reset outputs, respectively.
The MIC2753/4 includes an undervoltage detector with a
power-on reset generator and reset output, an overvoltage
detector with a separate output for activating crowbar circuits,
and a debounced manual reset input. Typical supply current
is a low 30
μ
A.
These devices provide a 140ms minimum reset output at
power-on and assert their reset outputs any time the input
voltage deviates beyond preset overvoltage or undervoltage
thresholds. Reset outputs remain asserted for 140ms (mini-
mum) after the input returns to normal or after releasing the
manual reset. When an overvoltage condition is detected, the
overvoltage output is immediately activated. Hysteresis on
both thresholds prevents erratic operation due to noise.
Typical Application
Microcontroller
VCC
Manual
Reset
MIC2754
VIN
HV
MR
RST
V
CC
RST IN
GND
GND
Fuse
SCR
Crowbar
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
Features
Undervoltage and overvoltage monitor
Separate overvoltage flag output
Generates 140ms (minimum) power-on reset pulse
Debounced manual reset input
Choice of active-high (MIC2753) or
active-low (MIC2754) reset outputs
Low 30
μ
A typical supply current
No external components needed
IttyBitty SOT-23-5 package
Applications
Computer systems
Embedded controllers
Power supplies
Telecommunications systems
相關PDF資料 |
PDF描述 |
|---|---|
| MIC2754 | Power Supply Supervisors(電源監控器（帶低壓和過壓檢測）) |
| MIC2753-LBM5 | Power Supply Supervisors Preliminary Information |
| MIC2753-MBM5 | Power Supply Supervisors Preliminary Information |
| MIC2754-MBM5 | Power Supply Supervisors Preliminary Information |
| MIC2754-SBM5 | Power Supply Supervisors Preliminary Information |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MIC2753-LBM5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:RF Micro Devices Inc 功能描述: 制造商:Micrel Inc 功能描述: |
| MIC2753-MBM5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:RF Micro Devices Inc 功能描述: 制造商:Micrel Inc 功能描述: |
| MIC2753-SBM5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:RF Micro Devices Inc 功能描述: 制造商:Micrel Inc 功能描述: |
| MIC2754-LBM5 | 制造商:RF Micro Devices Inc 功能描述: |
| MIC2754-RBM5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:RF Micro Devices Inc 功能描述: |
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