LM93CIMTX

更新时间： 2024-09-28 22:13:59

品牌	Logo	应用领域
美国国家半导体 - NSC		风扇监控服务器
页数	文件大小	规格书
92页	637K
描述
Hardware Monitor with Integrated Fan Control for Server Management

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中文翻译

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数据手册

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LM93CIMTX 数据手册

April 2004

LM93

Hardware Monitor with Integrated Fan Control for Server

Management

n Dual dynamic VID monitoring (6 VIDs per processor)

n 8 general purpose I/Os:

1.0 General Description

The LM93, hardware monitor, has a two wire digital interface

— 4 can be configured as fan tachometer inputs

— 2 can be configured to connect to THERMTRIP from

compatible with SMBus 2.0. Using an 8-bit Σ∆ ADC, the

LM93 measures the temperature of two remote diode con-

a processor

nected transistors as well as its own die and 16 power supply

voltages.

— 2 are standard GPIOs that could be used to monitor

IERR signal

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

n 2 general purpose inputs that can be used to monitor

SCSI termination signals

n Limit register comparisons of all monitored values

digital filter that can be invoked to smooth temperature read-

n 2-wire, SMBus 2.0 compliant, serial digital interface

ings for better control of fan speed. The LM93 has four

— Supports byte/block read and write

tachometer inputs to measure fan speed. Limit and status

— Configurable slave address (tri-level pin selects 1 of

registers for all measured values are included.

3 possible addresses)

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

n 2.5V reference voltage output

n 56-pin TSSOP package

n XOR-tree test mode

PROCHOT. It is designed to monitor a dual processor Xeon

class motherboard with a minimum of external components.

3.0 Key Specifications

n Voltage Measurement Accuracy

n Resolution

2% FS (max)

8-bits, 1˚C

3˚C (max)

2.0 Features

n Temperature Sensor Accuracy

n Temperature Range:

— LM93 Operational

— Remote Temp Accuracy

n Power Supply Voltage

n Power Supply Current

n 8-bit Σ∆ ADC

n Monitors 16 power supplies

0˚C to +85˚C

0˚C to +125˚C

+3.0V to +3.6V

0.9 mA

n Monitors 2 remote thermal diodes

n Internal ambient temperature sensing

n Programmable autonomous fan control based on

temperature readings with fan boost support

Fan control based on 13-step lookup table

4.0 Applications

n Servers

n Workstations

n Temperature reading digital filter

n 1.0˚C digital temperature sensor resolution

n 0.5˚C temperature resolution for fan control

n 2 PWM fan speed control outputs

n 4 fan tachometer inputs

n Multi-Microprocessor based equipment

n Dual processor thermal throttling (PROCHOT)

monitoring

5.0 Ordering Information

Order Number NS Package Number Transport media

LM93CIMT

MTD56

34 units in rail

1000 units in tape-and-reel

LM93CIMTX

C is a registered trademark of the Philips Corporation.

DS200682

www.national.com

12 3 4 5 6 7...92

中文翻译

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与LM93CIMTX相关器件

型号	品牌	获取价格	描述	数据表
LM93CIMTX/NOPB	NSC	获取价格	IC 16-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO56, MO-153EE, TSSOP-56, Power Management Circu
LM93CIMTX/NOPB	TI	获取价格	Hardware Monitor with Integrated Fan Control for Server Management
LM94	NSC	获取价格	TruTherTM Hardware Monitor with PI Loop Fan Control for Server Management
LM94	TI	获取价格	具有 β 补偿、风扇控制、硬件和电源监控器、采用 TSSOP 封装的 ±2°C 四路远程和
LM94021	NSC	获取价格	Multi-Gain Analog Temperature Sensor
LM94021	TI	获取价格	Multi-Gain Analog Temperature Sensor
LM94021BIMG	NSC	获取价格	Multi-Gain Analog Temperature Sensor
LM94021BIMG	TI	获取价格	Multi-Gain Analog Temperature Sensor
LM94021BIMG/NOPB	NSC	获取价格	Analog Temperature Sensor, ANALOG TEMP SENSOR-VOLTAGE, 2.70Cel, RECTANGULAR, SURFACE MOUNT
LM94021BIMG/NOPB	TI	获取价格	Multi-Gain Analog Temperature Sensor

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