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 inter-

face compatible with SMBus 2.0. Using an 8-bit ΣΔ 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 temper-

ature 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

■

Block Diagram

– the temperature of two remote diode connected transis-

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

2-wire, SMBus 2.0 compliant, serial digital interface

8-bit ΣΔ ADC

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

motherboard/processor supplies

Monitors 2 remote thermal diodes

Programmable autonomous fan control based on

temperature readings

200846

■

Key Specifications

■

Applications

■

Noise filtering of temperature reading for fan control

1.0°C digital temperature sensor resolution

3 PWM fan speed control outputs

Provides high and low PWM frequency ranges

4 fan tachometer inputs

Monitors 5 VID control lines

24-pin TSSOP package

XOR-tree test mode

Voltage Measurement Accuracy

Resolution

Temperature Sensor Accuracy

Temperature Range

— LM96000 Operational

— Remote Temp Accuracy

Power Supply Voltage

Power Supply Current

Desktop PC

Microprocessor based equipment

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

20084601

+3.0V to +3.6V

±2% FS (max)

0°C to +125°C

www.national.com

July 23, 2008

0°C to +85°C

±3°C (max)

8-bits, 1°C

0.53 mA

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