ADT7473EBZEVB Datasheet ADT7473EBZEVB | P1-P3

7/29/2011 - 1 - www.onsemi.com

Test Procedure for the ADT7473EBZEVB Evaluation Board

OBJECTIVE

The evaluation board allows all the input and output functions of the ADT7473 to be demonstrated. The software allows

control and monitoring of the ADT7473’s internal registers. Using the evaluation board and its accompanying software, the

ADT7473 can be interfaced to any personal computer running Windows XP or Windows 2000 via the USB port.

EVALUATION BOARD HARDWARE

The evaluation board contains:

• An ADT7473 device

• Two remote transistors for temperature sensing

• Two 5V fans and fan drive circuitry

• 12V fan connectors

• Electronic configuration switches

• Indicator LEDs

• On-board heaters (allows demonstration of fan response over temperature)

• USB interface circuitry

• External 12V power connectors (required for fans and heaters, the ADT7473 device is powered from the USB

port)

• Potentiometer for voltage adjustment

• Push button for THERM assertion.

QUICK GUIDE TO SETTING UP AND USING THE ADT7473 EVALUATION KIT.

¾ Install software before connecting the ADT7473 evaluation board to the USB port. Software is available on the

enclosed CD.

¾ The ADT7473 evaluation board can be powered from the USB port. A separate 12V power supply is required to run

the fans.

¾ Open the ADT74XX software Start>All Programs> ON Semiconductor> ADT74XX EvaluationSoftware>

ADT74XX Evaluation Software. The ADT74XX software, once started, looks for the device it is about to

communicate with. The following screens appear.

Figure 1. Finding the device. Click the ‘Next’ button.

7/29/2011 - 2 - www.onsemi.com

Figure 2. Click ‘Next’ , this searches the USB for and ADT74XX devices.

Figure 3. Select the device from the results and click ‘Finish’

¾ Once this is done the software starts up. To open the graphing window go to the main toolbar, >Main >Visual

Display.

Figure 4. Opening Graphing window

¾ The graphing window displays the temperature of the local and remote sensors, the fan RPM and the PWM %duty

7/29/2011 - 3 - www.onsemi.com

cycle for each of the PWM channels. It also displays the different voltage readings taken from the board.

Figure 5. Graphing Window

¾ Limits for: Local, Remote 1, Remote 2, Fan 1, Fan 2, Fan 3, Fan 4, Vccp, Vcc, 5V, 12V and 2.5V channels can be

adjusted using the slider bars in the graph. The upper limit (red) and lower limit (blue) are adjusted by clicking and

dragging the slider up or down. The Status will change from green to red on an out of limit event for the

corresponding channel.

¾ The on-board potentiometer can be used to adjust the Vccp voltage.

¾ Some pins on the ADT7473 share functionality (pins 5, 9, and 15) To change the function of these pins you need to

open the Eval Board Configuration window. On the main toolbar click ‘Main’> ‘Eval Board Configuration’

P1-P3 P4-P6

ADT7473EBZEVB

Mfr. #:

Buy ADT7473EBZEVB

Manufacturer:

ON Semiconductor

Description:

EVALUATION BOARD ADT7473

Lifecycle:

New from this manufacturer.

Delivery:

DHL FedEx Ups TNT EMS

Payment:

T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet

ADT7473EBZEVB