AN2839 datasheet(31/40 Pages) STMICROELECTRONICS

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AN2839

Demonstration board

Doc ID 15104 Rev 1

31/40

Appendix A

Demonstration board

A.1

PractiSPINTM

PractiSPINTM is an evaluation and demonstration system that can be used with the

powerSPINTM family (L62xx) of devices. A graphical user interface (GUI) program (shown in

Figure 35) runs on an IBM PC under Windows and communicates with a common

ST7-based interface board (Figure 36 on page 32) through the RS-232 serial port. The ST7

interface board connects to a device-specific demonstration board (target board) via a

standard 34-pin ribbon cable interface.

Depending on the target device, the PractiSPINTM can drive a stepper motor, 1 or 2 DC

motors or a brushless DC (BLDC) motor, operating significant parameters such as speed,

current, voltage, direction, acceleration and deceleration rates from a user-friendly graphic

interface, and programming a sequence of movements.

The software can also evaluate the power dissipated by the selected device and, for a given

package and dissipating copper area on the PCB, estimate the device's junction

temperature.

Figure 35.

PractiSPINTM PC software

AM01718v1

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