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LT1381 데이터시트(PDF) 1 Page - Linear Technology

부품명 LT1381
상세설명  Low Power 5V RS232 Dual Driver/Receiver with 0.1uF Capacitors
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제조업체  LINER [Linear Technology]
홈페이지  http://www.linear.com
Logo LINER - Linear Technology

LT1381 데이터시트(HTML) 1 Page - Linear Technology

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1
LT1381
Low Power 5V RS232 Dual
Driver/Receiver with
0.1
µF Capacitors
R
Output Waveforms
DRIVER
OUTPUT
RL = 3k
CL = 2500pF
RECEIVER
OUTPUT
CL = 50pF
INPUT
S
APPLICATI
s
Portable Computers
s
Battery-Powered Systems
s
Power Supply Generator
s
Terminals
s
Modems
APPLICATI
TYPICAL
DESCRIPTIO
S
FEATURE
s
ESD Protection over
±10kV
s
Low Cost
s
Uses Small Capacitors: 0.1
µF
s
CMOS Comparable Low Power: 40mW
s
Operates from a Single 5V Supply
s
120kBaud Operation for RL = 3k, CL = 2500pF
s
250kBaud Operation for RL = 3k, CL = 1000pF
s
Rugged Bipolar Design
s
Outputs Assume a High Impedance State When
Powered Down
s
Absolutely No Latchup
s
Available in Narrow SO Package
5k
5k
0.1
µF
LOGIC
INPUTS
LOGIC
OUTPUTS
9
12
10
11
5
4
3
1
15
8
13
7
14
6
2
16
5V INPUT
V+ OUT
V OUT
RS232 OUTPUT
RS232 OUTPUT
RS232 INPUT
RS232 INPUT
LT1381 • TA01
LT1381
0.1
µF
0.1
µF
0.1
µF
+
+
+
S
, LTC and LT are registered trademarks of Linear Technology Corporation.
TransZorb® is a registered trademark of General Instruments, GSI
The LT
®1381 is a dual RS232 driver/receiver pair with
integral charge pump to generate RS232 voltage levels
from a single 5V supply. The circuit features rugged
bipolar design to provide operating fault tolerance and
ESD protection unmatched by competing CMOS designs.
Using only 0.1
µF external capacitors, the circuit con-
sumes only 40mW of power and can operate to 120kbaud
even while driving heavy capacitive loads. New ESD struc-
tures on the chip allow the LT1381 to survive multiple
±10kVstrikes,eliminatingtheneedforcostlyTransZorbs®
on the RS232 line pins. Driver outputs are protected from
overload and can be shorted to ground or up to
±25V
without damage. During power-off conditions, driver and
receiver outputs are in a high impedance state, allowing
line sharing.
LT1381 • TA02


유사한 부품 번호 - LT1381

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