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| 型号： | MIC845LYC5 |
| 厂商： | Micrel Inc |
| 文件页数： | 1/7页 |
| 文件大小： | 0K |
| 描述： | IC COMPARATOR W/REFERENCE SC70-5 |
| 标准包装： | 1 |
| 系列： | Teeny™ |
| 类型： | 带电压基准 |
| 元件数： | 1 |
| 输出类型： | 推挽式 |
| 电压 - 电源，单路/双路(±)： | 2.75 V ~ 5.5 V |
| 电流 - 静态（最大值）： | 3µA |
| 磁滞： | 40mV |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 6-TSSOP（5 引线），SC-88A，SOT-353 |
| 安装类型： | 表面贴装 |
| 包装： | 散装 |
MIC845
Micro-Power Comparator /
Battery Monitor
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
General Description
The MIC845 is a precision micro-power voltage
comparator with an on-chip 2.55V reference voltage
source.
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 1A),
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 1A 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
VDD
VREF = 2.55V
MIC845
Internal Fixed Hysteresis
R2
VDD
VIN
VOUT
2.75V < VDD < 5.5V
Threshold Detector with
3.3V
INP
GND
OUT
VDD
to Host
Memory
power
Lithium
Coin Cell
MIC845
Nano-Power Battery Monitor
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC845LYC5 TR | 功能描述:校验器 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 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| MIC845LYC5-TR | 功能描述:Comparator with Voltage Reference Push-Pull SC-70-5 制造商:microchip technology 系列:Teeny?? 包装:剪切带（CT） 零件状态:Last Time Buy 类型:带电压基准 元件数:1 输出类型:推挽式 电压 - 电源，单/双（±）:2.75 V ~ 5.5 V 电压 - 输入失调（最大值）:- 电流 - 输入偏置（最大值）:- 电流 - 输出（典型值）:- 电流 - 静态（最大值）:3μA CMRR，PSRR（典型值）:- 传播延迟（最大值）:- 滞后:40mV 工作温度:-40°C ~ 85°C 封装/外壳:5-TSSOP，SC-70-5，SOT-353 安装类型:表面贴装 供应商器件封装:SC-70-5 标准包装:1 |
| MIC845NBC5 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Micro-Power Comparator/ Battery Monitor |
| MIC845NYC5 | 功能描述:IC COMPARATOR W/REFERENCE SC70-5 RoHS:是 类别:集成电路 (IC) >> 线性 - 比较器 系列:Teeny™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:通用 元件数:1 输出类型:CMOS，推挽式，满摆幅，TTL 电压 - 电源，单路/双路(±):2.5 V ~ 5.5 V，±1.25 V ~ 2.75 V 电压 - 输入偏移（最小值）:5mV @ 5.5V 电流 - 输入偏压（最小值）:1pA @ 5.5V 电流 - 输出（标准）:- 电流 - 静态（最大值）:24µA CMRR, PSRR（标准）:80dB CMRR，80dB PSRR 传输延迟（最大）:450ns 磁滞:±3mV 工作温度:-40°C ~ 85°C 封装/外壳:6-WFBGA，CSPBGA 安装类型:表面贴装 包装:管件 其它名称:Q3554586 |
| MIC845NYC5 TR | 功能描述:校验器 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 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
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