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參數資料
| 型號： | MIC845NYC5 |
| 廠商： | MICREL INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | Micro-Power Comparator/ Battery Monitor |
| 中文描述： | COMPARATOR, 12000 ns RESPONSE TIME, PDSO5 |
| 封裝： | SC-70, 5 LEAD |
| 文件頁數： | 1/7頁 |
| 文件大小： | 137K |
| 代理商： | MIC845NYC5 |
MIC845
Micro-Power Comparator /
Battery Monitor
General Description
The MIC845 is a precision micro-power voltage
comparator with an on-chip 2.55V reference voltage
source.
Teeny is a trademark of Micrel, Inc.
Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
July 2005
M9999-070505
(408) 955-1690
Intended for voltage monitoring applications, the
MIC845 can be used with an external resistor divider
to detect a wide range of voltages, or without
external resistors to directly monitor voltages with its
high input impedance CMOS input.
The MIC845 incorporates a voltage reference and
comparator with fixed internal hysteresis. When the
2.55V internal threshold is crossed, the output
switches polarity.
MIC845 is available with a push-pull or open-drain
output stage. The push-pull output stage is
configured for both active high or active low output;
the open-drain output stage is only configured active
high.
Supply current is extremely low (typically 1μA),
making it ideal for portable applications.
MIC845 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
Features
Extremely low 1μA supply current (typical)
2.55V on chip reference
±2% voltage threshold accuracy
Optimized for PDAs, cellular telephones, pagers,
and other battery-powered devices
Open-drain output can be pulled up to 6V
regardless of supply voltage
5-lead SC-70 package
Applications
PDAs
Pagers
Cordless phones
Portable electronics
Motherboards
Bladed servers
____________________________________________________________________________________________________
Typical Applications
R1
INP
GND
OUT
V
DD
V
REF
= 2.55V
2.75V < V
DD
< 5.5V
MIC845
Internal Fixed Hysteresis
R2
V
DD
V
IN
V
OUT
Threshold Detector with
3.3V
INP
GND
OUT
V
DD
to Host
Memory
power
Lithium
Coin Cell
MIC845
Nano-Power Battery Monitor
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| MIC861 | Teeny Ultra Low Power Op Amp Final Information |
| MIC861BC5 | Teeny Ultra Low Power Op Amp Final Information |
| MIC862 | DUAL ULTRA LOW POWER OP AMP IN SOT 23-8 |
| MIC862BM8 | DUAL ULTRA LOW POWER OP AMP IN SOT 23-8 |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MIC845NYC5 TR | 功能描述:校驗器 IC 1.5 A Undervoltage Comparator with 2.0% 2.55V Reference, 20mV Hysteresis, 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 |
| MIC845NYC5-TR | 功能描述:Comparator with Voltage Reference Open Drain SC-70-5 制造商:microchip technology 系列:Teeny?? 包裝:剪切帶（CT） 零件狀態:Last Time Buy 類型:帶電壓基準 元件數:1 輸出類型:開路漏極 電壓 - 電源，單/雙（±）:2.75 V ~ 5.5 V 電壓 - 輸入失調（最大值）:- 電流 - 輸入偏置（最大值）:- 電流 - 輸出（典型值）:- 電流 - 靜態（最大值）:3μA CMRR，PSRR（典型值）:- 傳播延遲（最大值）:- 滯后:40mV 工作溫度:-40°C ~ 85°C 封裝/外殼:5-TSSOP，SC-70-5，SOT-353 安裝類型:表面貼裝 供應商器件封裝:SC-70-5 標準包裝:1 |
| MIC860 | 制造商:AMERICAN DJ 功能描述:LASER PROJECTOR RED AND BLUE LASER HEAD |
| MIC860BC5 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Teeny⑩ Ultra Low Power Op Amp |
| MIC860BC5 TR | 功能描述:IC OPAMP 4MHZ 2.7V ULT LP SC70 RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:Teeny™ 標準包裝:2,500 系列:- 放大器類型:通用 電路數:1 輸出類型:滿擺幅 轉換速率:0.11 V/µs 增益帶寬積:350kHz -3db帶寬:- 電流 - 輸入偏壓:4nA 電壓 - 輸入偏移:20µV 電流 - 電源:260µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 36 V，±1.35 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:8-SO 包裝:帶卷 (TR) |
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