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參數資料
| 型號： | MIC842 |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | Comparator with Reference |
| 中文描述： | 比較有參考 |
| 文件頁數： | 1/8頁 |
| 文件大小： | 62K |
| 代理商： | MIC842 |
September 2004
1
MIC841/2
MIC841/2
Micrel
MIC841/842
Comparator with Reference
Typical Application
HTH
OUT
VDD
LTH
GND
MIC841
V
IN
R1
R2
R3
V
OUT
V
DD
V
LTH
> V
V
= 1.24V
1.5V
≤
V
DD
≤
5.5V
5
3
1
4
2
Threshold Detection with Hysteresis Set by a Third
External Resistor
Features
Optimized for PDAs, cellular telephones, pagers,
and other battery-powered devices
Output can be pulled up to 6V regardless of supply
voltage (841NBC5 only)
High
±
1.25% voltage threshold accuracy
Built in hysteresis for noise suppression
(MIC842)
Extremely low 1.5
μ
A typical supply current
Immune to brief input transients
Teeny 5-lead SC-70 package
Applications
PDAs
Pagers
Cordless phones
Consumer electronics
Embedded controllers
Personal electronics
Micrel, Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
General Description
The MIC841 and MIC842 are micropower, precision voltage
comparators with an on-chip voltage reference.
Both devices are intended for voltage monitoring applications.
External resistors are used to set the voltage monitor threshold.
When the threshold is crossed, the outputs switch polarity.
The MIC842 incorporates a voltage reference and comparator
with fixed internal hysteresis; two external resistors are used to
set the switching threshold voltage. The MIC841 provides a
similar function with user adjustable hysteresis; this part re-
quires three external resistors to set the upper and lower
thresholds (the difference between the threshold voltages
being the hysteresis voltage).
Both the MIC841 and MIC842 are available with push-pull or
open-drain output stage. The push-pull output stage is config-
ured either active high or active low; the open-drain output stage
is only configured active high.
Supply current is extremely low (1.5
μ
A, typical), making it ideal
for portable applications.
The MIC841/2 is supplied in Micrel’s Teeny 5-lead SC-70
package.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Teeny is a trademark of Micrel, Inc.
INP
OUT
VDD
GND
MIC842
V
IN
R1
R2
V
OUT
V
DD
V
= 1.24V
1.5V
≤
V
DD
≤
5.5V
4
2
1
5
Threshold Detector with Internal Fixed Hysteresis
Teeny
相關PDF資料 |
PDF描述 |
|---|---|
| MIC842HBC5 | Comparator with Reference |
| MIC842HYC5 | Comparator with Reference |
| MIC842LBC5 | Comparator with Reference |
| MIC842LYC5 | Comparator with Reference |
| MIC842NBC5 | Comparator with Reference |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MIC842HBC5 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Comparator with Reference |
| MIC842HBC5 TR | 功能描述:IC COMPARATOR W/REFERENCE SC70-5 RoHS:否 類別:集成電路 (IC) >> 線性 - 比較器 系列:Teeny™ 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:通用 元件數:1 輸出類型:CMOS，推挽式，滿擺幅，TTL 電壓 - 電源，單路/雙路(±):2.5 V ~ 5.5 V，±1.25 V ~ 2.75 V 電壓 - 輸入偏移（最小值）:5mV @ 5.5V 電流 - 輸入偏壓（最小值）:1pA @ 5.5V 電流 - 輸出（標準）:- 電流 - 靜態（最大值）:24µA CMRR, PSRR（標準）:80dB CMRR，80dB PSRR 傳輸延遲（最大）:450ns 磁滯:±3mV 工作溫度:-40°C ~ 85°C 封裝/外殼:6-WFBGA，CSPBGA 安裝類型:表面貼裝 包裝:管件 其它名稱:Q3554586 |
| MIC842HYC5 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Comparator with 1.25% Reference and Adjustable Hysteresis |
| MIC842HYC5 TR | 功能描述:校驗器 IC 1.5 A Undervoltage Comparator with 1.25% 1.24V Reference, 20mV Hysteresis, Active-Low Push-Pull Output in SC70-5 (Lead Free) RoHS:否 制造商:STMicroelectronics 產品: 比較器類型: 通道數量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| MIC842HYC5TR | 制造商:Micrel 功能描述:Comparator Single 5.5V |
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