TL145406_06 datasheet(10/14 Pages) TI

10 / 14 page

TL145406

TRIPLE RS-232 DRIVERS/RECEIVERS

SLLS185D – DECEMBER 1994 – REVISED JULY 2001

10

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

APPLICATION INFORMATION

Diodes placed in series with the VDD and VSS leads protect the TL145406 during the fault condition in which the device

outputs are shorted to

±15 V and the power supplies are at low. Diodes also provide low-impedance paths to ground

(see Figure 15).

VDD

VSS

±15 V

Output

VDD

VSS

TL145406

Figure 15. Power-Supply Protection to Meet Power-Off Fault Conditions of ANSI TIA/EIA-232-F

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