Table 10. Supply current and protections: (VCC= +3.0 V to 5.5 V, TA = Tmin to Tmax, unless otherwise specified. Typical

values are at VCC = 5 V and T = 25 °C)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Supply current

ICC

Supply current (quiescent)

Driver and receiver enabled DE =

VCC, RE = GND, no load

1.77

2.5

mA

Driver enabled, receiver disabled

DE = VCC, RE = VCC, no load

1

1.8

mA

Driver disabled, receiver enabled

DE = GND, RE = GND, no load

1

1.8

mA

Driver and receiver disabled

(shutdown mode) DE = GND, RE

= VCC, no load

0.6

3.5

µA

TTSD

Thermal shutdown threshold

165

°C

TTSD_HYS

Thermal shutdown hysteresis

13

IOS

Driver short-circuit output current

-7 V < VSHORT < +12 V

-250

250

mA

ST4E1216, ST4E1240

Electrical characteristics

DS14542 - Rev 2

page 7/31