Electrical characteristics

ST75185

6/21

Note:

3

The algebraic convention, where the more positive (less negative) limits designated as

maximum, is used in this datasheet for logic levels only (e.g. if - 10V is a maximum, the

typical value is a more negative voltage).

4

Output short circuit conditions must maintain the total power dissipation below absolute

maximum ratings.

5

Test conditions are those specified by EIA-232-E and as listed above.

6

Measured between -3V and 3V points of output waveform (EIA-232-E conditions), all

unused inputs are tied.

Table 6.

Driver electrical characteristics over operating free-air temperature range

Symbol

Parameter

Test Conditions

Value

Unit

Min.

Typ.

Max.

High Level Output Voltage

(See

Figure 3.)

67.5

V

Low Level Output Voltage

(Note 3)

(See

Figure 3.)

-7.5

-6

V

High Level Input Current

µA

Low Level Input Current

−1.6

mA

High Level Short Circuit

Output Current (Note 4)

(See

Figure 3.)

-4.5

−12

−19.5

mA

Low Level Short Circuit

Output Current

(See

Figure 3.)

4.5

12

19.5

mA

Output Resistance

300

W

Table 7.

Driver switching characteristics

Symbol

Parameter

Test Conditions

Value

Unit

Min.

Typ.

Max.

Propagation Delay Time, Low to

High Level Output

(See

Figure 5, Figure 6)

315

500

ns

Propagation Delay Time, High to

Low Level Output

(See

Figure 5, Figure 6)

75

175

ns

Transition Time Low to High Level

Output

(See

Figure 5, Figure 6)

60

100

ns

(

Note 6, Figure 5, Figure 6)

1.7

2.5

µs

Transition Time High to Low Level

Output

(See

40

7.5

ns

(

1.5

2.5

µs