LTC1348IG datasheet(2/8 Pages) LINER

Part #	LTC1348IG

Description	3.3V/5V Low Power RS232 3-Driver/5-Receiver Transceiver

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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2

LTC1348

A

G

A

U

A

R

BSOLUTEXI

TI

S

PACKAGE/ORDER I FOR ATIO

ORDER PART

NUMBER

LTC1348CG

LTC1348CSW

LTC1348IG

LTC1348ISW

(Note 1)

Supply Voltage (VCC) ................................................ 6V

Input Voltage

Driver ....................................... – 0.3V to VCC + 0.3V

Receiver ............................................... – 25V to 25V

Driver/Receiver Enable Pin ........ – 0.3V to VCC + 0.3V

Output Voltage

Driver ................................................... – 25V to 25V

Receiver .................................... – 0.3V to VCC + 0.3V

Short-Circuit Duration

V+ ................................................................... 30 sec

V– ................................................................... 30 sec

Driver Output .............................................. Indefinite

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

Operating Temperature Range

LTC1348C................................................ 0

°C to 70°C

LTC1348I ............................................ – 40

°C to 85°C

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

°C to 150°C

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

°C

Consult factory for Military grade parts.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

V+

C2+

C2–

VCC

C1+

C1–

DR1 OUT

RX1 IN

DR2 OUT

RX2 IN

RX3 IN

RX4 IN

DR3 OUT

RX5 IN

28

27

26

25

24

23

22

21

20

19

18

17

16

15

V –

C3+

C3–

DR1 IN

RX1 OUT

DR2 IN

RX2 OUT

RX3 OUT

RX4 OUT

DR3 IN

RX5 OUT

DREN

RXEN

GND

TOP VIEW

SW PACKAGE

28-LEAD PLASTIC SO

G PACKAGE

28-LEAD PLASTIC SSOP

TJMAX = 125°C, θJA = 96°C/W (G)

TJMAX = 125°C, θJA = 85°C/W (SW)

ELECTRICAL C

C

HARA TERISTICS

C

D

VCC = 3V to 5.5V, C1 to C4 = 0.1µF, unless otherwise noted.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Any Driver

Output Voltage Swing

VCC = 3.3V, 3k to GND

Positive

q

5.0

6.2

V

Negative

q

– 5.0

– 6.0

V

Logic Input Voltage Level

Input Low Level (VOUT = High)

q

0.8

V

Input High Level (VOUT = Low), VCC = 3.3V

q

2.0

V

Input High Level (VOUT = Low), VCC = 5V

q

2.4

V

Logic Input Current

VIN = VCC

q

5

µA

VIN = 0V

q

–5

–35

µA

Output Short-Circuit Current

VOUT = 0V

±12

mA

Output Leakage Current

Shutdown (Note 3) or Receiver Alive Mode (Note 4),

q

±10

±500

µA

VOUT = ±20V

Any Receiver

Input Voltage Thresholds

Input Threshold (Receiver Alive Mode)

0.8

1.5

2.4

V

Input Low Threshold (Normal Mode)

0.8

1.3

V

Input High Threshold (Normal Mode)

1.7

2.4

V

Hysteresis

Normal Mode

0.3

V

Input Resistance

VIN = ±10V

3

5

7

k

Ω

Output Voltage

Output Low, IOUT = – 1.6mA

q

0.2

0.4

V

Output High, IOUT = 160µA

q

VCC – 0.6V

V

Output Short-Circuit Current

Sinking Current, VOUT = VCC

–3

–20

mA

Output Leakage Current

Shutdown (Note 3), 0V

≤ VOUT ≤ VCC

q

110

µA

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