Datasheet > LTC1337

LTC1337

更新时间： 2023-12-20 18:46:20

品牌	Logo	应用领域
亚德诺 - ADI		驱动驱动器
页数	文件大小	规格书
8页	127K
描述
5V、低功率、RS232、3 驱动器 / 5 接收器收发器

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LTC1337 数据手册

LTC1337

5V Low Power RS232

3-Driver/5-Receiver Transceiver

FEATURES

DESCRIPTIO

The LTC^®1337 is a 3-driver/5-receiver RS232 transceiver

with very low supply current. In the no load condition, the

supply current is only 300µA. The charge pump only

requires four 0.1µF capacitors and can supply up to 12mA

of extra current to power external circuitry.

■

Low Supply Current: 300µA

■

ESD Protection: Over ±10kV

■

1µA Supply Current in Shutdown

Operates from a Single 5V Supply

Uses Small Capacitors: 0.1µF

Operates to 120k Baud

■

In Shutdown mode, the supply current is further reduced

to 1µA. All RS232 outputs assume a high impedance state

in Shutdown and with the power off.

■

Three-State Outputs Are High Impedance When Off

■

Output Overvoltage Does Not Force Current Back into

Supplies

■

The LTC1337 is fully compliant with all data rate and

overvoltage RS232 specifications. The transceiver can

operate up to 120k baud with a 1000pF//3kΩ load. Both

driver outputs and receiver inputs can be forced to ±25V

without damage, and can survive multiple ±10kV ESD

strikes.

RS232 I/O Lines Can Be Forced to ±25V without

Damage

Pin Compatible with LT^®1137A and LT1237

Flowthrough Architecture

■

APPLICATIO S

, LTC and LT are registered trademarks of Linear Technology Corporation.

■

Notebook Computers

Palmtop Computers

■

TYPICAL APPLICATIO

3-Drivers/5-Receivers with Shutdown

Supply Current

1.2

1.0

0.8

0.6

0.4

0.2

600

500

400

300

200

100

–

LTC1337

0.1µF

DRIVER 1 IN

RX1 OUT

DRIVER 2 IN

RX2 OUT

RX3 OUT

RX4 OUT

DRIVER 3 IN

RX5 OUT

GND

QUIESCENT

CURRENT

DRIVER 1 OUT

RX1 IN

DRIVER 2 OUT

RX2 IN

SHUTDOWN

CURRENT

RX3 IN

RX4 IN

DRIVER 3 OUT

RX5 IN

–20

TEMPERATURE (°C)

ON/OFF

TEST CONDITION:

= 5V, ALL DRIVER INPUTS TIED TO V

1337 TA01

1337 TA02

1337fa

12 3 4 5 6 7 8

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