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参数资料
| 型号： | LTC1349IG#TRPBF |
| 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-SSOP |
| 标准包装： | 2,000 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 3/5 |
| 规程： | RS232 |
| 电源电压： | 4.5 V ~ 5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 带卷 (TR) |
4
LTC1349
1349fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
UU
U
PI FU CTIO S
With multiple devices, the V + and V – pins may be paral-
leled into common capacitors. For large numbers of de-
vices, 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
charge pump efficiency, the capacitor’s effective series
resistance should be less than 20.
DRIVER
OUTPUT
RL = 3k
DRIVER
OUTPUT
RL = 3k
CL = 2500pF
INPUT
RECEIVER
OUTPUT
CL = 2500pF
INPUT
LTC1349 TPC08
LTC1349 TPC09
VCC Supply Current
Driver Short-Circuit Current
Driver Leakage in Shutdown
TEMPERATURE (°C)
0
SUPPLY
CURRENT
(mA)
60
20
16
14
12
10
8
6
4
2
0
LTC1349 TPC04
20
70
10
30
40
50
3 DRIVERS LOADED
RL = 3k
1 DRIVER LOADED
RL = 3k
TEMPERATURE (°C)
0
LEAKAGE
CURRENT
(
A)
60
45
40
35
30
25
20
15
10
5
0
LTC1349 TPC05
20
70
10
30
40
50
VOUT = –20V
VOUT = 20V
TEMPERATURE (°C)
–40
0
SHORT-CIRCUIT
CURRENT
(mA)
4
8
10
12
40
20
LTC1349 TPC06
6
080
14
16
18
–20
60
20
100
ISC
+
ISC
–
Receiver Short-Circuit Current
Receiver Output Waveforms
Driver Output Waveforms
TEMPERATURE (°C)
–40
10
SHORT-CIRCUIT
CURRENT
(mA)
30
60
0
40
60
LTC1349 TPC07
20
50
40
–20
20
80
100
ISC
–
ISC
+
VCC: 5V Input Supply Pin. Supply current is typically 35A
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 Shutdown mode, with receivers 4
and 5 kept alive and the supply current equal to 35A. All
driver outputs and other receiver outputs are in high
impedance state. This pin can not 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 5V.
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| LTC1349INW#PBF | 功能描述:IC TXRX 5V RS232 LOW PWR 28-DIP RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:27 系列:- 类型:收发器 驱动器/接收器数:3/3 规程:RS232，RS485 电源电压:4.75 V ~ 5.25 V 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 |
| LTC1349ISW | 功能描述:IC TXRX 5V RS232 LOW PWR 28-SOIC RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:27 系列:- 类型:收发器 驱动器/接收器数:3/3 规程:RS232，RS485 电源电压:4.75 V ~ 5.25 V 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 |
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| LTC1349ISW#TR | 功能描述:IC TXRX RS232 5V SHTDN LP 28SOIC RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:27 系列:- 类型:收发器 驱动器/接收器数:3/3 规程:RS232，RS485 电源电压:4.75 V ~ 5.25 V 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 |
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