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參數(shù)資料
| 型號： | LTC491IN |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 2/12頁 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS485 LOW POWER 14-DIP |
| 標準包裝： | 25 |
| 類型： | 收發(fā)器 |
| 驅(qū)動器/接收器數(shù)： | 1/1 |
| 規(guī)程： | RS422，RS485 |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 14-DIP（0.300"，7.62mm） |
| 供應商設備封裝： | 14-PDIP |
| 包裝： | 管件 |
LTC491
10
491fa
U
S
A
O
PPLICATI
WU
U
I FOR ATIO
Fault Protection
All of LTC’s RS485 products are protected against ESD
transients up to 2kV using the human body model (100pF,
1.5k
). However, some applications need more
protection. The best protection method is to connect a
bidirectional TransZorb
from each line side pin to ground
(Figure 16).
A TransZorb is a silicon transient voltage suppressor that
has exceptional surge handling capabilities, fast response
time, and low series resistance. They are available from
General Semiconductor Industries and come in a variety of
breakdown voltages and prices. Be sure to pick a break-
down voltage higher than the common mode voltage
Figure 16. ESD Protection with TransZorbs
LTC491 F16
120
DRIVER
Z
Y
required for your application (typically 12V). Also, don’t
forget to check how much the added parasitic capacitance
will load down the bus.
TransZorb is a registered trademark of General Instruments, GSI
U
PACKAGE DESCRIPTIO
N Package
14-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510)
N14 1002
.020
(0.508)
MIN
.120
(3.048)
MIN
.130
± .005
(3.302
± 0.127)
.045 – .065
(1.143 – 1.651)
.065
(1.651)
TYP
.018
± .003
(0.457
± 0.076)
.005
(0.125)
MIN
.255
± .015*
(6.477
± 0.381)
.770*
(19.558)
MAX
3
1
2
4
5
6
7
8
9
10
11
12
13
14
.008 – .015
(0.203 – 0.381)
.300 – .325
(7.620 – 8.255)
.325
+.035
–.015
+0.889
–0.381
8.255
()
NOTE:
1. DIMENSIONS ARE
INCHES
MILLIMETERS
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm)
.100
(2.54)
BSC
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LTC491IN#PBF | 功能描述:IC TXRX RS485 LOW POWER 14-DIP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)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(qū)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 |
| LTC491IS | 功能描述:IC TXRX RS485 LOWPWR DIFF 14SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)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(qū)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 |
| LTC491IS#PBF | 功能描述:IC TXRX RS485 LOW POWER 14-SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓模塊:RS-232 & USB Transceiver 標準包裝:2,000 系列:- 類型:收發(fā)器 驅(qū)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 |
| LTC491IS#PBF | 制造商:Linear Technology 功能描述:Driver/Receiver IC |
| LTC491IS#TR | 功能描述:IC TXRX RS485 LOW POWER 14-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)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(qū)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 |
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