DC motor

Hello "Guest",

The LM35 IC Module is a precision temperature sensing module.

Are you quite sure you are intending the Question as expressed above?

While it may be possible to use the LM35 IC Module to control the speed of a DC motor, when the LM35 Specifications are read, the motor would be extremely small, as the supply current of the IC is only 60 micro-amperes, with a 1mA load.

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LM35

Precision Centigrade Temperature Sensors

General Description

The LM35 series are precision integrated-circuit temperature
sensors, whose output voltage is linearly proportional to the
Celsius (Centigrade) temperature. The LM35 thus has an
advantage over linear temperature sensors calibrated in
° Kelvin, as the user is not required to subtract a large
constant voltage from its output to obtain convenient Centigrade
scaling. The LM35 does not require any external
calibration or trimming to provide typical accuracies of ±1⁄4°C
at room temperature and ±3⁄4°C over a full −55 to +150°C
temperature range. Low cost is assured by trimming and
calibration at the wafer level. The LM35's low output impedance,
linear output, and precise inherent calibration make
interfacing to readout or control circuitry especially easy. It
can be used with single power supplies, or with plus and
minus supplies. As it draws only 60 μA from its supply, it has
very low self-heating, less than 0.1°C in still air. The LM35 is
rated to operate over a −55° to +150°C temperature range,
while the LM35C is rated for a −40° to +110°C range (−10°
with improved accuracy). The LM35 series is available packaged
in hermetic TO-46 transistor packages, while the
LM35C, LM35CA, and LM35D are also available in the
plastic TO-92 transistor package. The LM35D is also available
in an 8-lead surface mount small outline package and aplastic TO-220 package.

Features

• Calibrated directly in ° Celsius (Centigrade)
• Linear + 10.0 mV/°C scale factor
• 0.5°C accuracy guaranteeable (at +25°C)
• Rated for full −55° to +150°C range
• Suitable for remote applications
• Low cost due to wafer-level trimming
• Operates from 4 to 30 volts
• Less than 60 μA current drain
• Low self-heating, 0.08°C in still air
• Nonlinearity only ±1⁄4°C typical
• Low impedance output, 0.1 W for 1 mA load

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Please refer to the National Semiconductor Data Sheet .PDF for the LM35 IC Module Specification, right here: http://store.qkits.com/moreinfo.cfm/LM35.pdf

You would need to advise the Motor Voltage and current which you are intending to "speed control", before any IC or other speed control module may be properly selected.

Trust you feel assisted.

Reply here, with

Kind Regards....

Do your own homework please. It took me 25 seconds to find the answer to this via a Google search. I'm sure it would have taken you about the same amount of time.