LTC1387CSW datasheet(2/12 Pages) LINER

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LTC1387

BSOLUTEXI

ORDER PART

NUMBER

(Note 1)

Supply Voltage (VCC) ............................................. 6.5V

Input Voltage

Drivers ................................... – 0.3V to (VCC + 0.3V)

Receivers ............................................. – 25V to 25V

485/232, ON, DXEN

RXEN, SLEW ........................... – 0.3V to (VCC + 0.3V)

Output Voltage

Drivers ................................................. – 18V to 18V

Receivers ............................... – 0.3V to (VCC + 0.3V)

Short-Circuit Duration

Output ........................................................ Indefinite

VDD, VEE, C1+, C1–, C2+, C2–.......................... 30 sec

Operating Temperature Range

LTC1387C .............................................. 0

°C to 70°C

LTC1387I ........................................... – 40

°C to 85°C

Storage Temperature Range ................ – 65

°C to 150°C

Lead Temperature (Soldering, 10 sec)................ 300

°C

PACKAGE/ORDER I FOR ATIO

Consult factory for Military grade parts.

TJMAX = 125°C, θJA = 120°C/W (G)

TJMAX = 125°C, θJA = 75°C/W (SW)

TOP VIEW

SW PACKAGE

20-LEAD PLASTIC SO

G PACKAGE

20-LEAD PLASTIC SSOP

C1+

C1–

VDD

485/232

DXEN

GND

C2+

C2–

VCC

DZ/SLEW

RXEN

VEE

DC ELECTRICAL CHARACTERISTICS

LTC1387CG

LTC1387CSW

LTC1387IG

LTC1387ISW

TA = 25°C, VCC = 5V, C1 = C2 = C3 = C4 = 0.1µF (Notes 2, 3), unless otherwise noted.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

RS485 Driver (485/232 = High, ON = DXEN = High)

VOD1

Differential Driver Output Voltage (Unloaded)

IO = 0

VOD2

Differential Driver Output Voltage (With Load)

Figure 1, R = 50

Ω (RS422)

2.0

Figure 1, R = 27

Ω (RS485)

1.5

∆VOD

Change in Magnitude of Driver Differential

Figure 1, R = 27

Ω or R = 50Ω

0.2

Output Voltage for Complementary Output States

VOC

Driver Common Mode Output Voltage

Figure 1, R = 27

Ω or R = 50Ω

∆VOC

Change in Magnitude of Driver Common Mode

Figure 1, R = 27

Ω or R = 50Ω

0.2

Output Voltage for Complementary Output States

IOSD

Driver Short-Circuit Current

VO = – 7V, 12V; VO = High

250

VO = – 7V, 12V; VO = Low (Note 4)

250

IOZD

Three-State Output Current (Y, Z)

– 7V

≤ VO ≤ 12V

±5

500

µA

RS232 Driver (485/232 = Low, ON = DXEN = High)

Output Voltage Swing

Figure 4, RL = 3k, Positive

6.5

Figure 4, RL = 3k, Negative

–5

–6.5

IOSD

Output Short-Circuit Current

VO = 0V

±17

±60

Driver Inputs and Control Inputs

VIH

Input High Voltage

DY, DZ, DXEN, RXEN, ON, 485/232, SLEW

VIL

Input Low Voltage

DY, DZ, DXEN, RXEN, ON, 485/232, SLEW

0.8

IIN

Input Current

DY, DZ, DXEN, RXEN, ON, 485/232

±0.1

±10

µA

SLEW (Note 5)

µA

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