LM96000CIMT National Semiconductor, LM96000CIMT Datasheet

LM96000CIMT

Manufacturer Part Number

LM96000CIMT

Description

IC,Data Acquisition System,7-CHANNEL,8-BIT,TSSOP,24PIN,PLASTIC

Manufacturer

National Semiconductor

Datasheets

1.LM96000CIMT.pdf (28 pages)

2.LM96000CIMT.pdf (28 pages)

3.LM96000CIMT.pdf (32 pages)

Specifications of LM96000CIMT

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

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LM96000

Hardware Monitor with Integrated Fan Control

General Description

The LM96000, hardware monitor, has a two wire digital

interface compatible with SMBus 2.0. Using an 8-bit Σ∆

ADC, the LM96000 measures:

tors as well as its own die

ternal scaling resistors).

To set fan speed, the LM96000 has three PWM outputs that

are each controlled by one of three temperature zones. High

and low PWM frequency ranges are supported. The

LM96000 includes a digital filter that can be invoked to

smooth temperature readings for better control of fan speed.

The LM96000 has four tachometer inputs to measure fan

speed. Limit and status registers for all measured values are

included.

Features

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

n 8-bit Σ∆ ADC

n Monitors VCCP, 2.5V, 3.3 VSBY, 5.0V, and 12V

n Monitors 2 remote thermal diodes

n Programmable autonomous fan control based on

Block Diagram

– the temperature of two remote diode connected transis-

– the VCCP, 2.5V, 3.3VSBY, 5.0V, and 12V supplies (in-

motherboard/processor supplies

temperature readings

DS200846

n Noise filtering of temperature reading for fan control

n 1.0˚C digital temperature sensor resolution

n 3 PWM fan speed control outputs

n Provides high and low PWM frequency ranges

n 4 fan tachometer inputs

n Monitors 5 VID control lines

n 24-pin TSSOP package

n XOR-tree test mode

Key Specifications

n Voltage Measurement Accuracy

n Resolution

n Temperature Sensor Accuracy

n Temperature Range

n Power Supply Voltage

n Power Supply Current

Applications

n Desktop PC

n Microprocessor based equipment

— LM96000 Operational

— Remote Temp Accuracy

(e.g. Base-stations, Routers, ATMs, Point of Sales)

20084601

November 2004

+3.0V to +3.6V

0˚C to +125˚C

www.national.com

2% FS (max)

0˚C to +85˚C

8-bits, 1˚C

3˚C (max)

0.53 mA

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