PBL3717A 데이터 시트보기 (PDF) - System Logic Semiconductor

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PBL3717A

STEPPER MOTOR DRIVER

System Logic Semiconductor 

PBL3717A

MOUNTING INSTRUCTIONS

The Rth j-amb of the PBL 3717A can be reduced by

soldering the GND pins to a suitable copper area of

the printed circuit board or to an external heatsink.

Figure 10 : Example of P.C. Board Copper Area

which is used as Heatsink

The diagram of fig. 11 shows the maximum dissipa-

ble power Ptot and the Rth j-amb as a function of the

side "α" of two equal square copper areas having a

thichkness of 35µ (see fig. 10).

Figure 11 : Max. Dissipable Power and Junction-

Ambient Thermal Resistance versus

size "a"

9/11

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