ISL81485 datasheet(3/11 Pages) INTERSIL

3 / 11 page

Absolute Maximum Ratings

Thermal Information

VCC to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V

Input Voltages

DI, DE, RE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 7V

Input / Output Voltages

A/Y, B/Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -8V to +12.5V

RO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to (VCC +0.5V)

Short Circuit Duration

Y, Z. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous

Operating Conditions

Temperature Range

ISL81485IX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to 85oC

Thermal Resistance (Typical, Note 1)

JA (

oC/W)

8 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . .

105

8 Ld MSOP Package . . . . . . . . . . . . . . . . . . . . . . . .

140

Maximum Junction Temperature (Plastic Package) . . . . . . . 150oC

Maximum Storage Temperature Range . . . . . . . . . -65oC to 150oC

Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC

(Lead Tips Only)

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the

device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

NOTE:

θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.

Electrical Specifications

Test Conditions: VCC = 4.5V to 5.5V; Unless Otherwise Specified. Typicals are at VCC = 5V, TA = 25oC,

Note 2

PARAMETER

SYMBOL

TEST CONDITIONS

TEMP

(oC)

MIN

TYP

MAX

UNITS

DC CHARACTERISTICS

Driver Differential VOUT (no load)

VOD1

Full

VCC

Driver Differential VOUT (with load)

VOD2

R = 50

Ω (RS-422) (Figure 1A)

Full

2.5

R = 27

Ω (RS-485) (Figure 1A)

Full

2.5

RD = 60Ω, -7V ≤ VCM ≤ 12V (Figure 1B)

Full

1.5

Change in Magnitude of Driver

Differential VOUT for

Complementary Output States

∆VOD

R = 27

Ω or 50Ω (Figure 1A)

Full

0.01

0.2

Driver Common-Mode VOUT

VOC

R = 27

Ω or 50Ω (Figure 1A)

Full

Change in Magnitude of Driver

Common-Mode VOUT for

Complementary Output States

∆VOC

R = 27

Ω or 50Ω (Figure 1A)

Full

0.01

0.2

Logic Input High Voltage

VIH

DE, DI, RE

Full

Logic Input Low Voltage

VIL

DE, DI, RE

Full

0.8

Logic Input Current

IIN1

DE, DI, RE

Full

-1

µA

Input Current (A/Y, B/Z) (Note 5)

IIN2

DE = 0V, VCC = 0V or

4.5 to 5.5V

VIN = 12V

Full

VIN = -7V

Full

-0.8

Receiver Differential Threshold

Voltage

VTH

-7V

≤ V

CM ≤ 12V

Full

-0.2

0.2

Receiver Input Hysteresis

∆VTH

VCM = 0V

Receiver Output High Voltage

VOH

IO = -4mA, VID = 200mV

Full

Receiver Output Low Voltage

VOL

IO = -4mA, VID = 200mV

Full

0.4

Three-State (high impedance)

Receiver Output Current

IOZR

0.4V

≤ VO ≤ 2.4V

Full

±1

µA

Receiver Input Resistance

RIN

-7V

≤ VCM ≤ 12V

Full

Ω

No-Load Supply Current, Note 3

ICC

DI, RE = 0V or VCC

DE = VCC

Full

2.2

DE = 0V

Full

0.8

Driver Short-Circuit Current,

VO = High or Low

IOSD1

DE = VCC, -7V ≤ VY or VZ ≤ 12V (Note 4)

Full

250

ISL81485

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