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參數(shù)資料
| 型號： | LT1780ISW#TRPBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 10/12頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DVR/RCVR 5V RS232 DUAL 18SOIC |
| 標準包裝： | 1,000 |
| 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： | 18-SOIC（0.295"，7.50mm 寬） |
| 供應商設備封裝： | 18-SOIC |
| 包裝： | 帶卷 (TR) |
7
LT1780/LT1781
ESD PROTECTIO
U
The RS232 line inputs of the LT1780/LT1781 have on-chip
protection from ESD transients up to
±15kV air gap and
±8kV contact tested to IEC-1000-4-2 test methods. The
protection structures act to divert the static discharge
safely to system ground. In order for the ESD protection to
function effectively, the power supply and ground pins of
the circuit must be connected to ground through low
impedances. The power supply decoupling capacitors and
charge pump storage capacitors provide this low imped-
ance in normal application of the circuit. The only con-
straint is that low ESR capacitors must be used for
bypassing and charge storage. ESD testing must be done
with pins VCC, VL, V+, V –, and GND shorted to ground or
connected with low ESR capacitors.
Operation Using 5V and 12V Power Supplies
1780 ESD TC
0.1
F
RS232
LINE PINS
PROTECTED
TO IEC-1000-4-2
LEVEL 4
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
0.1
F
0.1
F
0.1
F
NC
C1+
V+
C1–
C2+
C2–
V–
DR2 OUT
LT1780
0.1
F
ON/OFF
5V VCC
GND
DR1 OUT
RX1 IN
RX1 OUT
DR1 IN
DR2 IN
RS232
LINE PINS
PROTECTED
TO IEC-1000-4-2
LEVEL 4
RX2 IN
RX2 OUT
ESD Test Circuit
5k
0.1
F
0.1
F
LOGIC
INPUTS
LOGIC
OUTPUTS
ON/OFF
18
10
13
11
12
6
5
4
2
16
9
14
8
15
7
3
17
5V INPUT
–12VOUT
RS232 OUTPUT
RS232 INPUT
1780/81 TA03
LT1780
12V INPUT
U
TYPICAL APPLICATIO
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LT1780SW | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Transceiver |
| LT1781 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Low Power 5V RS232 Dual Driver/Receiver with 【15kV ESD Protection |
| LT1781CN | 功能描述:IC DVR/RCVR 5V RS232 DUAL 16-DIP RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 標準包裝:27 系列:- 類型:收發(fā)器 驅動器/接收器數(shù):3/3 規(guī)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 |
| LT1781CN#PBF | 功能描述:IC DVR/RCVR 5V RS232 DUAL 16-DIP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 產品培訓模塊:RS-232 & USB Transceiver 標準包裝:2,000 系列:- 類型:收發(fā)器 驅動器/接收器數(shù):1/1 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:16-SSOP 包裝:帶卷 (TR) 其它名稱:296-19849-2 |
| LT1781CN#PBF | 制造商:Linear Technology 功能描述:IC LINE TRANSCEIVER BIPOLAR 2 DRIVER |
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