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參數資料
| 型號： | LTC1349 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 5V Low Power RS232,3-Driver/5-ReceiverTransceiver(5V,低功率，RS23，3發5收收發器(關斷，帶2個活動接收器）) |
| 中文描述： | 5V的低功耗的RS232 ,3 -驅動器/ 5 ReceiverTransceiver（5V的，低功率，RS23，3發5收收發器（關斷，帶2個活動接收器）） |
| 文件頁數： | 1/8頁 |
| 文件大小： | 156K |
| 代理商： | LTC1349 |
1
LTC1349
5V Low Power RS232
3-Driver/5-Receiver Transceiver
with 2 Receivers Active
in SHUTDOWN
U
A
O
PPLICATI
TYPICAL
Quiescent and SHUTDOWN Supply Current
vs Temperature
S
FEATURE
D
The LTC1349 is a 3-driver/5-receiver RS232 transceiver
with very low supply current. In the no load condition, the
supply current is only 300
μ
A. The charge pump only
requires four 0.1
μ
F capacitors.
In SHUTDOWN mode, two receivers are kept alive and the
supply current is 35
μ
A. All RS232 outputs assume a high
impedance state in SHUTDOWN and with the power off.
The LTC1349 is fully compliant with all data rate and
overvoltage RS232 specifications. The transceiver can
operate up to 120k baud with a 2500pF, 3k
load. Both
driver outputs and receiver inputs can be forced to
±
25V
without damage, and can survive multiple
±
10kV ESD
strikes.
U
ESCRIPTIO
I
Low Supply Current: 300
μ
A
I
Two Receivers Kept Alive in SHUTDOWN
I
ESD Protection Over
±
10kV
I
Operates from a Single 5V Supply
I
Uses Small Capacitors: 0.1
μ
F
I
Operates to 120k Baud
I
Three-State Outputs Are High Impedance When Off
I
Output Overvoltage Does Not Force Current
Back into Supplies
I
RS232 I/O Lines Can Be Forced to
±
25V
Without Damage
I
Pin Compatible with LT1137A and LT1237
I
Flowthrough Architecture
U
S
A
O
PPLICATI
I
Notebook Computers
I
Palmtop Computers
TEMPERATURE (°C)
Q
μ
A
1200
1000
800
600
400
200
0
–40
20
40
60
LTC1349 TA02
80
0
60
50
40
30
20
10
0
S
μ
A
QUIESCENT
CURRENT
SHUTDOWN
CURRENT
TEST CONDITION:
V
CC
= 5V, ALL DRIVER INPUTS TIED TO V
CC
.
–20
100
3-Drivers/5-Receivers with SHUTDOWN
LTC1349 TA01
V
CC
C1
0.1
μ
F
LTC1349
1
2
3
4
5
6
7
8
9
10
11
12
13
14
DRIVER 1 OUT
RX1 IN
DRIVER 2 OUT
RX2 IN
RX3 IN
RX4 IN
DRIVER 3 OUT
RX5 IN
ON/OFF
NC
28
27
26
25
24
23
22
21
20
19
18
17
16
15
C3
0.1
μ
F
DRIVER 1 IN
RX1 OUT
DRIVER 2 IN
RX2 OUT
RX3 OUT
RX4 OUT
DRIVER 3 IN
RX5 OUT
GND
NC
NC
V
–
V
+
C2
0.1
μ
F
C4
0.1
μ
F
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相關代理商/技術參數 |
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|---|---|
| LTC1349CG | 功能描述:IC TXRX 5V RS232 LOW PWR 28-SSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發器 系列:- 標準包裝:27 系列:- 類型:收發器 驅動器/接收器數:3/3 規程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC 包裝:管件 |
| LTC1349CG#PBF | 功能描述:IC TXRX 5V RS232 LOW PWR 28-SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發器 系列:- 標準包裝:27 系列:- 類型:收發器 驅動器/接收器數:3/3 規程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC 包裝:管件 |
| LTC1349CG#TR | 功能描述:IC TXRX RS232 5V SHTDN LP 28SSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發器 系列:- 標準包裝:27 系列:- 類型:收發器 驅動器/接收器數:3/3 規程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC 包裝:管件 |
| LTC1349CG#TRPBF | 功能描述:IC TXRX 5V RS232 LOW PWR 28-SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發器 系列:- 標準包裝:27 系列:- 類型:收發器 驅動器/接收器數:3/3 規程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC 包裝:管件 |
| LTC1349CN | 制造商:Linear Technology 功能描述:5V L/P RS232 3Dx/5Rx w/2Rx Active |
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