參數(shù)資料
型號: LT1381IS#PBF
廠商: Linear Technology
文件頁數(shù): 1/8頁
文件大小: 0K
描述: IC DVR/RCVR 5V RS232 DUAL 16SOIC
標準包裝: 50
類型: 收發(fā)器
驅動器/接收器數(shù): 2/2
規(guī)程: RS232
電源電壓: 4.5 V ~ 5.5 V
安裝類型: 表面貼裝
封裝/外殼: 16-SOIC(0.154",3.90mm 寬)
供應商設備封裝: 16-SOIC
包裝: 管件
1
LT1381
Low Power 5V RS232 Dual
Driver/Receiver with
0.1
F Capacitors
R
Output Waveforms
DRIVER
OUTPUT
RL = 3k
CL = 2500pF
RECEIVER
OUTPUT
CL = 50pF
INPUT
U
S
A
O
PPLICATI
s
Portable Computers
s
Battery-Powered Systems
s
Power Supply Generator
s
Terminals
s
Modems
U
A
O
PPLICATI
TYPICAL
D
U
ESCRIPTIO
S
FEATURE
s
ESD Protection over
±10kV
s
Low Cost
s
Uses Small Capacitors: 0.1
F
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
0.1
F
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 INPUT
LT1381 TA01
LT1381
0.1
F
0.1
F
0.1
F
+
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
F 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
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