參數(shù)資料
型號(hào)： LM93CIMT
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 電源管理
英文描述： Hardware Monitor with Integrated Fan Control for Server Management
中文描述： 16-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO56
封裝： MO-153EE, TSSOP-56
文件頁(yè)數(shù)： 1/92頁(yè)
文件大小： 654K
代理商： LM93CIMT
LM93
Hardware Monitor with Integrated Fan Control for Server
Management
1.0 General Description
The LM93, hardware monitor, has a two wire digital interface
compatible with SMBus 2.0. Using an 8-bit
Σ
ADC, the
LM93 measures the temperature of two remote diode con-
nected transistors as well as its own die and 16 power supply
voltages.
To set fan speed, the LM93 has two PWM outputs that are
each controlled by up to four temperature zones. The fan-
control algorithm is lookup table based. The LM93 includes a
digital filter that can be invoked to smooth temperature read-
ings for better control of fan speed. The LM93 has four
tachometer inputs to measure fan speed. Limit and status
registers for all measured values are included.
The LM93 builds upon the functionality of previous mother-
board management ASICs and uses some of the LM85’s
features (i.e. smart tachometer mode). It also adds measure-
ment and control support for dynamic Vccp monitoring and
PROCHOT. It is designed to monitor a dual processor Xeon
class motherboard with a minimum of external components.
2.0 Features
n
8-bit
Σ
ADC
n
Monitors 16 power supplies
n
Monitors 2 remote thermal diodes
n
Internal ambient temperature sensing
n
Programmable autonomous fan control based on
temperature readings with fan boost support
n
Fan control based on 13-step lookup table
n
Temperature reading digital filter
n
1.0C digital temperature sensor resolution
n
0.5C temperature resolution for fan control
n
2 PWM fan speed control outputs
n
4 fan tachometer inputs
n
Dual processor thermal throttling (PROCHOT)
monitoring
n
Dual dynamic VID monitoring (6 VIDs per processor)
n
8 general purpose I/Os:
— 4 can be configured as fan tachometer inputs
— 2 can be configured to connect to THERMTRIP from
a processor
— 2 are standard GPIOs that could be used to monitor
IERR signal
n
2 general purpose inputs that can be used to monitor
SCSI termination signals
n
Limit register comparisons of all monitored values
n
2-wire, SMBus 2.0 compliant, serial digital interface
— Supports byte/block read and write
— Configurable slave address (tri-level pin selects 1 of
3 possible addresses)
n
2.5V reference voltage output
n
56-pin TSSOP package
n
XOR-tree test mode
3.0 Key Specifications
n
Voltage Measurement Accuracy
n
Resolution
n
Temperature Sensor Accuracy
n
Temperature Range:
— LM93 Operational
— Remote Temp Accuracy
n
Power Supply Voltage
n
Power Supply Current
±
2% FS (max)
8-bits, 1C
±
3C (max)
0C to +85C
0C to +125C
+3.0V to +3.6V
0.9 mA
4.0 Applications
n
Servers
n
Workstations
n
Multi-Microprocessor based equipment
5.0 Ordering Information
Order Number NS Package Number Transport media
LM93CIMT
MTD56
LM93CIMTX
MTD56
34 units in rail
1000 units in tape-and-reel
I2C is a registered trademark of the Philips Corporation.
April 2004
L
2004 National Semiconductor Corporation
DS200682
www.national.com
相關(guān)PDF資料
PDF描述
LM93CIMTX LJT 6C 6#12 PIN PLUG
LM95010 Digital Temperature Sensor with SensorPath⑩ Bus in MSOP8 Package
LM95010CIMMX Digital Temperature Sensor with SensorPath⑩ Bus in MSOP8 Package
LM95010CIMM Digital Temperature Sensor with SensorPath⑩ Bus in MSOP8 Package
LM95071 SPI/MICROWIRE⑩ 13-Bit Plus Sign Temperature Sensor
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM93CIMT/NOPB 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
LM93CIMTX 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
LM93CIMTX/NOPB 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
LM94 制造商:NSC 制造商全稱:National Semiconductor 功能描述:TruTherTM Hardware Monitor with PI Loop Fan Control for Server Management
LM94021 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Multi-Gain Analog Temperature Sensor
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*