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參數資料
| 型號： | MIC281 |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | Replaced by PTH05000W : |
| 中文描述： | 低成本IttyBitty熱傳感器IttyBitty |
| 文件頁數： | 1/12頁 |
| 文件大小： | 171K |
| 代理商： | MIC281 |
November 2004
1
MIC281
MIC281
Micrel
MIC281
Low-Cost IttyBitty Thermal Sensor IttyBitty
REV 11/04
General Description
The MIC281 is a digital thermal sensor capable of measuring
the temperature of a remote PN junction. It is optimized for
applications favoring low cost and small size. The remote
junction may be an inexpensive commodity transistor, e.g.,
2N3906, or an embedded thermal diode such as found in
Intel Pentium* II/III/IV CPUs, AMD Athlon* CPUs, and Xilinx
Virtex* FPGAs.
The MIC281 is 100% software and hardware backward com-
patible with the MIC280 and features the same industry-leading
noise performance and small size. The advanced integrating
A/D converter and analog front-end reduce errors due to noise
for maximum accuracy and minimum guardbanding.
A 2-wire SMBus 2.0-compatible serial interface is provided for
host communication. The clock and data pins are 5V-tolerant
regardless of the value of V
DD
. They will not clamp the bus
lines low even if the device is powered down.
Superior performance, low power, and small size make the
MIC281 an excellent choice for cost-sensitive thermal man-
agement applications.
Typical Application
DATA
CLK
NC
5
4
2
3
1
TO
SERIAL BUS
HOST
CPU DIODE
2000pF
MIC281
3.3V
10k
pull-ups
VDD
T1
GND
0.1
μ
F
MIC281 Typical Application
Features
Remote temperature measurement using embedded
thermal diodes or commodity transistors
Accurate remote sensing
±3°C max., 0°C to 100°C
Excellent noise rejection
I
2
C and SMBus 2.0 compatible serial interface
SMBus timeout to prevent bus lockup
Voltage tolerant I/Os
Low power shutdown mode
Failsafe response to diode faults
3.0V to 3.6V power supply range
IttyBitty SOT23-6 Package
Applications
Desktop, server and notebook computers
Set-top boxes
Game consoles
Appliances
Micrel, Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
IttyBitty is a registered trademark of Micrel, Inc.
*All trademarks are the property of their respective owners.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MIC2810-1JGMYML TR | 功能描述:線性穩壓器 - 標準 DC-DC + 2 Linear Regulators with LowQ mode and POR (Lead-Free) RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調節: 最大輸入電壓:5.5 V 線路調整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| MIC2810-44MYML | 制造商:Rochester Electronics LLC 功能描述: 制造商:RF Micro Devices Inc 功能描述: |
| MIC2810-44MYML TR | 功能描述:線性穩壓器 - 標準 DC-DC + 2 Linear Regulators with LowQ mode and POR (Lead-Free) RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調節: 最大輸入電壓:5.5 V 線路調整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| MIC2810-44MYML-TR | 功能描述:Linear And Switching Voltage Regulator IC 3 Output Step-Down (Buck) (1), Linear (LDO) (2) 2MHz 16-VFQFN, 16-MLF? 制造商:microchip technology 系列:- 包裝:剪切帶（CT） 零件狀態:停產 拓撲:降壓（降壓）（1），線性（LDO）（2） 功能:任何功能 輸出數:3 頻率 - 開關:2MHz 電壓/電流 - 輸出 1:1.2V，600mA 電壓/電流 - 輸出 2:1.2V，300mA 電壓/電流 - 輸出 3:2.8V，300mA 帶 LED 驅動器:無 帶監控器:無 帶定序器:無 電壓 - 電源:1.65 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-VFQFN，16-MLF? 供應商器件封裝:16-MLF?（4x4） 標準包裝:1 |
| MIC2810-4GKYML TR | 功能描述:線性穩壓器 - 標準 DC-DC + 2 Linear Regulators with LowQ mode and POR (Lead-Free) RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調節: 最大輸入電壓:5.5 V 線路調整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
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