ISL81387 datasheet(19/27 Pages) INTERSIL

19 / 27 page

ISL81387, ISL41387

FN6201.4

June 9, 2014

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FIGURE 15. RS-485, DRIVER OUTPUT CURRENT vs DIFFERENTIAL

OUTPUT VOLTAGE

FIGURE 16. RS-485, DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs

TEMPERATURE

FIGURE 17. RS-485, DRIVER OUTPUT CURRENT vs SHORT CIRCUIT

VOLTAGE

FIGURE 18. SUPPLY CURRENT vs TEMPERATURE

FIGURE 19. VL SUPPLY CURRENT vs VL VOLTAGE (QFN ONLY)

FIGURE 20. VCC AND VL SHDN SUPPLY CURRENTS vs VL VOLTAGE

(QFN ONLY)

Typical Performance Curves V

CC = VL = 5V, TA = +25°C; Unless Otherwise Specified. (Continued)

DIFFERENTIAL OUTPUT VOLTAGE (V)

100

-40

TEMPERATURE (°C)

-25

RDIFF = 54

RDIFF = 100

3.0

3.1

3.2

3.3

3.4

3.5

3.6

OUTPUT VOLTAGE (V)

-7 -6

-4

-2

-150

-100

-50

100

150

Y OR Z = HIGH

Y OR Z = LOW

+25°C

+85°C

-40°C

FULL TEMP RANGE

-40

TEMPERATURE (°C)

-25

1.0

1.5

2.0

2.5

3.0

3.5

4.0

RS-232, RXEN, RXEN, ON = X, DEN = VCC

RS-485, DEN = GND, RXEN, RXEN = X, ON = VCC

RS-485, HALF DUPLEX, DEN = VCC, RXEN, RXEN, ON = X

RS-485, FULL DUPLEX, DEN = VCC, RXEN, RXEN, ON = X

RS-232, RXEN, RXEN = X, ON = VCC, DEN = GND

VL (V)

1µ

10µ

100µ

10m

23456

VL  VCC

VL > VCC

100n

10n

RS-485, SLEW, SPB, RXEN = VL

NO LOAD

VIN = VL or GND

RS-232, SPB, RXEN = VL OR

RS-485, SLEW, SPB, RXEN = GND

RS-232, RXEN = GND, SPB = VL

DEN, RXEN, ON = GND

2.0

2.5

3.0

3.5

4.0

4.5

5.0

VL (V)

100

200

300

400

500

NO LOAD

VIN = VL OR GND

RXEN = VL

RS-232/RS-485 ICC

SPB = GND

SPB = VL

RS-232 IL

RS-485 IL

DEN, RXEN, DY, DZ/SLEW, ON = GND

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