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LTC1384CN Datasheet

  • LTC1384CN

  • 5V Low Power RS232 Transceiver with 2 Receivers Active in Sh...

  • 219.26KB

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LTC1384
5V Low Power RS232
Transceiver with 2 Receivers
Active in Shutdown
FEATURES
s
s
s
DESCRIPTIO
s
s
s
s
s
s
Operates from a Single 5V Supply
Low Supply Current: I
CC
= 220碌A(chǔ)
I
CC
= 35碌A(chǔ) in Shutdown Mode with Both
Receivers Kept Alive
ESD Protection Over
鹵10kV
Uses Small Capacitors: 0.1碌F
Operates to 120kBaud
Output Overvoltage Does Not Force Current
Back into Supplies
RS232 I/O Lines Can Be Forced to
鹵25V
Without Damage
Pin Compatible with LT1180A
The LTC1384 is an ultra-low power 2-driver/2-receiver
RS232 transceiver that operates from a single 5V
supply. The charge pump requires only four space-
saving 0.1碌F capacitors.
The transceiver operates in one of two modes, Normal and
Shutdown. In the Normal mode, I
CC
is only 220碌A(chǔ) with the
driver outputs unloaded. In the Shutdown mode, the
charge pump is turned off, the driver outputs are forced
into three-state, both receivers are kept active and I
CC
drops to 35碌A(chǔ). The receiver outputs may be forced into
three-state at any time using the receiver enable (EN) pin.
The LTC1384 is fully compliant with all data rate and
overvoltage RS232 specifications. The transceiver can
operate up to 120kbaud with a 2500pF, 3k鈩?load. Both
driver outputs and receiver inputs can be forced to
鹵25V
without damage and can survive multiple
鹵10kV
ESD strikes.
APPLICATI
s
s
S
Notebook Computers
Palmtop Computers
TYPICAL APPLICATI
2
0.1碌F
4
5
0.1碌F
6
12
V
CC
300k
LOGIC INPUT
LOGIC OUTPUT
11
13
LTC1384
V
CC
300k
2-Drivers/2-Receivers with Shutdown
and Receiver Enable
17
3
7
0.1碌F
QUIESCENT CURRENT (碌A(chǔ))
Quiescent and Shutdown Supply Current
vs Temperature
1200
60
TEST CONDITION: V
CC
= 5V
1000
0.1碌F
V
CC
= 5V
800
600
400
200
0
鈥?0
LOGIC INPUT
15
232 OUTPUT
8
14
5k
232 OUTPUT
232 INPUT
0
LOGIC OUTPUT
ON/OFF
10
18
5k
9
16
232 INPUT
1
RX EN
LTC1384 鈥?TA01
U
50
SHUTDOWN CURRENT (碌A(chǔ))
UO
UO
SHUTDOWN
CURRENT
40
30
QUIESCENT
CURRENT
20
10
0
20
40
TEMPERATURE (擄C)
60
80
LTC1384 鈥?TA02
1

LTC1384CN 產(chǎn)品屬性

  • LTC1384

  • 20

  • 集成電路 (IC)

  • 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器

  • -

  • 收發(fā)器

  • 2/2

  • RS232

  • 4.5 V ~ 5 V

  • 通孔

  • 18-DIP（0.300"，7.62mm）

  • 18-DIP

  • 管件

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