LTC2845IG datasheet(2/20 Pages) LINER

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LTC2845

sn2845 2845fs

ABSOLUTE MAXIMUM RATINGS

PACKAGE/ORDER INFORMATION

(Note 1)

Supply Voltage

VCC ....................................................... –0.3V to 6.5V

VIN ..................................................................... –0.3V to 6.5V

VEE ...................................................................... –10V to 0.3V

VDD ..................................................................... – 0.3V to 10V

Input Voltage

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

Receivers ............................................... – 18V to 18V

Logic Pins .............................. – 0.3V to (VCC + 0.3V)

Output Voltage

Transmitters .................. (VEE – 0.3V) to (VDD + 0.3V)

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

The q denotes specifications which apply over the full operating tempera-

ture range, otherwise specifications are at TA = 25°C. VCC = 5V, VIN = 3.3V, VDD = 8V, VEE = – 7V for V.28, – 5.5V for V.10, V.11

(Notes 2, 3)

ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Supplies

ICC

VCC Supply Current (DCE Mode,

RS530, RS530-A, X.21 Modes, No Load

2.7

All Digital Pins = GND or VIN)

RS530, RS530-A, X.21 Modes, Full Load

110

150

V.28 Mode, No Load

V.28 Mode, Full Load

No-Cable Mode

700

1400

µA

Short-Circuit Duration

Transmitter Output ..................................... Indefinite

Receiver Output .......................................... Indefinite

VEE.................................................................. 30 sec

Operating Temperature Range

LTC2845C ............................................... 0

°C to 70°C

LTC2845I ........................................... – 40

°C to 85°C

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

°C to 150°C

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

°C

ORDER PART

NUMBER

LTC2845CG

LTC2845IG

TOP VIEW

VCC

VDD

DCE/DTE

D4ENB

R4EN

VEE

GND

D1 A

D1 B

D2 A

D2 B

D3/R1 A

D3/R1 B

R2 A

R2 B

R3 A

R3 B

D4 A

R4 A

R5 A

D5 A

VIN

VCC

G PACKAGE

36-LEAD PLASTIC SSOP

TJMAX = 125°C, θJA = 90°C/ W, θJC = 35°C/ W

Consult LTC Marketing for parts specified with wider operating temperature ranges.

ORDER PART

NUMBER

LTC2845CUHF

LTC2845IUHF

13 14 15 16

TOP VIEW

UHF PACKAGE

38-LEAD (7mm

× 5mm) PLASTIC QFN

17 18 19

38 37 36 35 34 33 32

DCE/DTE

D1 B

D2 A

D2 B

D3/R1 A

D3/R1 B

R2 A

R2 B

R3 A

R3 B

D4 A

R4 A

R5 A

TJMAX = 125°C, θJA = 34°C/ W

EXPOSED PAD IS VEE (PIN 39)

MUST BE SOLDERED TO PCB

UHF PART

MARKING

2845

2845I

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