參數(shù)資料
型號(hào)： LTC486ISW
廠商： LINEAR TECHNOLOGY CORP
元件分類(lèi)： 通用總線功能
英文描述： Quad Low Power RS485 Driver
中文描述： LINE DRIVER, PDSO16
封裝： 0.300 INCH, PLASTIC, SO-16
文件頁(yè)數(shù)： 8/8頁(yè)
文件大?。?/td> 123K
代理商： LTC486ISW
LTC486
8
U
S
A
solution is to use an AC termination with a pull-up resistor.
Simply swap the receiver inputs for data protocols ending
in logic 1.
O
PPLICATI
U
U
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7487
(408) 432-1900
●
FAX
: (408) 434-0507
●
TELEX
: 499-3977
NOTE:
2. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
NOTE 1
0.398 – 0.413
(10.(NOTE 2)
14
13
16
15
12
11
10
9
1
2
3
4
5
6
7
8
0.394 – 0.419
(10.007 – 10.643)
(0.037 – 0.045
(0.004 – 0.012
(0.093 – 0.104
(0.050
TYP
0.014 – 0.019
(0.35TYP
0° – 8° TYP
NOTE 1
(0.005
RAD MIN
(0.009 – 0.013
0.016 – 0.050
(0.406 – 1.270)
(0.(NOTE 2)
(0.010 – 0.029
×
45
°
S Package
16-Lead Plastic SOL
sn486 486fas LT/GP 0294 5K REV A PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1994
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 greater
protection. The best protection method is to connect a
bidirectional TransZorb
from each line side pin to ground
(Figure 12).
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
required for your application (typically 12V). Also, don’t
forget to check how much the added parasitic capacitance
will load down the bus.
RS232 to RS485 Level Translator with Hysteresis
U
A
O
PPLICATI
TYPICAL
N Package
16-Lead Plastic DIP
0.260 ± 0.010
(6.604 ± 0.254)
0.770
(19.558)
MAX
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0.015
(MIN
0.125
(3.175)
MIN
0.130 ± 0.005
(3.302 ± 0.127)
0.065
(1.651)
TYP
0.045 – 0.065
(1.143 – 1.651)
0.018 ± 0.003
(0.457 ± 0.076)
0.045 ± 0.015
(1.143 ± 0.381)
0.100 ± 0.010
(2.540 ± 0.254)
0.009 – 0.015
(0.229 – 0.381)
0.300 – 0.325
(7.620 – 8.255)
0.325–0.015
+0.635
8.255
(
)
U
PACKAGE DESCRIPTIO
Dimensions in inches (millimeters) unless otherwise noted.
LTC486 TA14
120
DRIVER
Y
Z
R = 220k
10k
RS232 IN
5.6k
HYSTERESIS = 10k
×
≈
VY R
R
1/4 LTC486
TransZorb
is a registrated trademark of General Instruments, GSI
LTC486 TA13
120
DRIVER
Z
Y
Figure 12. ESD Protection
相關(guān)PDF資料
PDF描述
LTC487CSW Quad Low Power RS485 Driver
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC486ISW#PBF 功能描述:IC DVR RS485 LOW PWR QUAD 16SOIC RoHS:是 類(lèi)別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:27 系列:- 類(lèi)型:收發(fā)器 驅(qū)動(dòng)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(lèi)型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件
LTC486ISW#PBF 制造商:Linear Technology 功能描述:Differential Bus/Line Driver IC
LTC486ISW#TR 功能描述:IC DRIVER RS485 QUAD LP 16SOIC RoHS:否 類(lèi)別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:27 系列:- 類(lèi)型:收發(fā)器 驅(qū)動(dòng)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(lèi)型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件
LTC486ISW#TRPBF 功能描述:IC DVR RS485 LOW PWR QUAD 16SOIC RoHS:是 類(lèi)別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:27 系列:- 類(lèi)型:收發(fā)器 驅(qū)動(dòng)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(lèi)型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件
LTC486ISWPBF 制造商:Linear Technology 功能描述:RS-485 Quad Transmitter 110uA SOIC16W
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