UTC75232

LINEAR INTEGRATED CIRCUIT

UTC UNISONIC TECHNOLOGIES CO., LTD. 12

QW-R113-005,B

APPLICATION INFORMATION

Figure 15. Power-Supply protection to meet Power-Off fault conditions of

TIA/TIA-232-F

Diodes placed in series with the VDD and VSS leads protect the UTC 75185 in the fault condition in which the

device outputs are shorted to

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

Figure 16. Typical Connection

“

U” : See Figure 10 to select the correct values for the loading capacitors (C1, C2, and C3), which are required to

meet the RS-232 maximum slew-rate requirement of 30V/

µs. The value of the loading capacitors required depends

upon the line length and desired slew rate, but typically is 330 pF.

Free Datasheet http://www.datasheetlist.com/