LTC1543_15 datasheet(2/20 Pages) LINER

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LTC1543

sn1534 1543fas

ABSOLUTE

AXI U

RATI GS

ORDER PART

NUMBER

(Note 1)

Supply Voltage ....................................................... 6.5V

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 (VCC + 0.3V)

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

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

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

Short-Circuit Duration

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

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

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

Operating Temperature Range

LTC1543C .............................................. 0

°C to 70°C

LTC1543I ........................................... – 40

°C to 85°C

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

°C to 150°C

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

°C

LTC1543CG

LTC1543IG

Consult LTC Marketing for parts specified with wider operating

temperature ranges.

TOP VIEW

C1–

C1+

VDD

VCC

DCE/DTE

C2+

C2–

VEE

GND

D1 A

D1 B

D2 A

D2 B

D3/R1 A

D3/R1 B

R2 A

R2 B

R3 A

R3 B

CHARGE PUMP

G PACKAGE

28-LEAD PLASTIC SSOP

TJMAX = 150°C, θJA = 90°C/ W

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

ture range. VCC = 5V (Notes 2, 3)

ELECTRICAL CHARACTERISTICS

PACKAGE/ORDER I FOR ATIO

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Supplies

ICC

VCC Supply Current (DCE Mode,

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

All Digital Pins = GND or VCC)

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

100

130

V.35 Mode, No Load

V.35 Mode, Full Load

126

170

V.28 Mode, No Load

V.28 Mode, Full Load

No-Cable Mode

120

500

µA

Internal Power Dissipation (DCE Mode)

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

230

V.35 Mode, Full Load

600

V.28 Mode, Full Load

140

V +

Positive Charge Pump Output Voltage

Any Mode, No Load

8.0

9.4

V.28 Mode, with Load

8.0

8.7

V.28 Mode, with Load, IDD = 10mA

6.5

V –

Negative Charge Pump Output Voltage

V.28, V.35 Modes, No Load

– 9.6

V.28 Mode, Full Load

– 8.0

– 8.5

V.35 Mode, Full Load

– 5.5

– 6.7

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

– 4.5

– 5.7

fOSC

Charge Pump Oscillator Frequency

150

kHz

Supply Rise Time

No-Cable Mode or Power-Up to Turn On

Logic Inputs and Outputs

VIH

Logic Input High Voltage

VIL

Logic Input Low Voltage

0.8

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