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MIC384-1BMM 参数 Datasheet PDF下载

MIC384-1BMM图片预览
型号: MIC384-1BMM
PDF下载: 下载PDF文件 查看货源
内容描述: 三区热监事高级信息 [Three-Zone Thermal Supervisor Advance Information]
分类和应用: 模拟IC信号电路光电二极管
文件页数/大小: 21 页 / 122 K
品牌: MICREL [ MICREL SEMICONDUCTOR ]
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MIC384
Micrel
MIC384
Three-Zone Thermal Supervisor
Advance Information
General Description
The MIC384 is a versatile digital thermal supervisor capable
of measuring temperature using its own internal sensor and
two inexpensive external sensors or embedded silicon di-
odes such as those found in the Intel Pentium III* CPU. A 2-
wire serial interface is provided to allow communication with
either I
2
C** or SMBus* masters. The open-drain interrupt
output pin can be used as either an over-temperature alarm
or a thermostatic control signal.
Interrupt mask and status bits are provided for reduced
software overhead. Fault queues prevent nuisance tripping
due to thermal or electrical noise. A programmable address
pin permits two devices to share the bus. (Alternate base
addresses available – contact Micrel.) Superior perfor-
mance, low power and small size makes the MIC384 an
excellent choice for multiple zone thermal management
applications.
*SMBus and Pentium III are trademarks of Intel Corporation.
**I
2
C is a trademark of Philips Electronics, N.V.
Features
Measures Local and Two Remote Temperatures
2-Wire SMBus-compatible Interface
Programmable Thermostat Settings for All Three Zones
Open-Drain Interrupt Output Pin
Interrupt Mask and Status Bits
Fault Queues to Prevent Nuisance Tripping
Low Power Shutdown Mode
Failsafe response to diode faults
2.7V to 5.5V Power Supply Range
8-Lead SOIC and MSOP Packages
Desktop, Server and Notebook Computers
Power Supplies
Test and Measurement Equipment
Wireless Systems
Networking/Datacom Hardware
Applications
Ordering Information
Part Number
MIC384-0BM
MIC384-1BM
MIC384-2BM
MIC384-3BM
MIC384-0BMM
MIC384-1BMM
MIC384-2BMM
MIC384-3BMM
Base Address
(
*
)
100 100x
100 101x
100 110x
100 111x
100 100x
100 101x
100 110x
100 111x
Junction Temp. Range
–55°C to +125°C
–55°C to +125°C
–55°C to +125°C
–55°C to +125°C
–55°C to +125°C
–55°C to +125°C
–55°C to +125°C
–55°C to +125°C
Package
8-Lead SOP
8-Lead SOP
8-Lead SOP
8-Lead SOP
8-Lead MSOP
8-Lead MSOP
8-Lead MSOP
8-Lead MSOP
Contact Factory
Contact Factory
Contact Factory
Contact Factory
Contact Factory
Contact Factory
Notes
* The least-significant bit of the slave address is determined by the state of the A0 pin.
Typical Application
3.3V
3
×
10k
pull-ups
FROM
SERIAL BUS
HOST
0.1µF
MIC384
DATA
VDD
CLK
T1
/INT
T2
GND
A0
REMOTE
DIODE
2200pF
REMOTE
DIODE
2200pF
3-Channel SMBus Temperature Measurement System
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com
September 2000
1
MIC384