参数资料
型号: LTC1347CSW#PBF
厂商: Linear Technology
文件页数: 4/8页
文件大小: 0K
描述: IC TXRX 5V RS232 LOW PWR 28-SOIC
标准包装: 27
类型: 收发器
驱动器/接收器数: 3/5
规程: RS232
电源电压: 5V
安装类型: 表面贴装
封装/外壳: 28-SOIC(0.295",7.50mm 宽)
供应商设备封装: 28-SOIC
包装: 管件
4
LTC1347
1347fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
TEMPERATURE (°C)
0
SUPPLY
CURRENT
(mA)
60
20
16
14
12
10
8
6
4
2
0
1347 G04
20
70
10
30
40
50
3 DRIVERS LOADED
RL = 3k
1 DRIVER LOADED
RL = 3k
VCC Supply Current
TEMPERATURE (°C)
–40
0
SHORT-CIRCUIT
CURRENT
(mA)
4
8
10
12
40
20
1347 G06
6
080
14
16
18
–20
60
20
100
ISC
+
ISC
Driver Short-Circuit Current
TEMPERATURE (°C)
0
LEAKAGE
CURRENT
(
A)
60
45
40
35
30
25
20
15
10
5
0
1347 G05
20
70
10
30
40
50
VOUT = –20V
VOUT = 20V
Driver Leakage in Shutdown
Receiver Short-Circuit Current
TEMPERATURE (°C)
–40
10
SHORT-CIRCUIT
CURRENT
(mA)
30
60
0
40
60
1347 G07
20
50
40
–20
20
80
100
ISC
ISC
+
Driver Output Waveforms
Receiver Output Waveforms
DRIVER
OUTPUT
RL = 3k
CL = 2500pF
1347 G08
1347 G09
RECEIVER
OUTPUT
CL = 51pF
INPUT
DRIVER
OUTPUT
RL = 3k
INPUT
VCC: 5V Input Supply Pin. Supply current is typically 80A
in the Shutdown mode. This pin should be decoupled with
a 0.1F ceramic capacitor.
GND: Ground Pin.
ON/OFF: TTL/CMOS Compatible Shutdown Pin. A logic
low puts the device in the Shutdown mode with all receiv-
ers kept alive, and the supply current is 80A. All driver
outputs are in high impedance state. This pin cannot float.
V +: Positive Supply Output (RS232 Drivers).
V+ 2VCC – 1V. This pin requires an external capacitor C
= 0.1F for charge storage. The capacitor may be tied to
ground or VCC. With multiple devices, the V + and V pins
may be paralleled into common capacitors. For large
numbers of devices, increasing the size of the shared
common storage capacitors is recommended to reduce
ripple.
V : Negative Supply Output (RS232 Drivers).
V – (2VCC – 1.5V). This pin requires an external
capacitor C = 0.1F for charge storage.
C1+, C1, C2+, C2: Commutating Capacitor Inputs. These
pins require two external capacitors C = 0.1F: one from
C1+ to C1, and another from C2+ to C2. To maintain
UU
U
PI FU CTIO S
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