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參數(shù)資料
| 型號： | LTC486IN |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | Quad Low Power RS485 Driver |
| 中文描述： | LINE DRIVER, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數(shù)： | 8/8頁 |
| 文件大?。?/td> | 227K |
| 代理商： | LTC486IN |
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
G
FAX
: (408) 434-0507
G
TELEX
: 499-3977
NOTE:
2. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006 INCH (0.15mm).
NOTE 1
(10.398 – 0.413
(NOTE 2)
14
13
16
15
12
11
10
9
1
2
3
4
5
6
7
8
(10.394 – 0.419
0.037 – 0.045
(0.940 – 1.143)
0.004 – 0.012
(0.102 – 0.305)
(0.093 – 0.104
0.050
(TYP
(0.014 – 0.019
TYP
0° – 8° TYP
NOTE 1
(0.005
(0.009 – 0.013
(0.016 – 0.050
0.291 – 0.299
(7.(NOTE 2)
(0.010 – 0.029
×
45
°
S Package
16-Lead Plastic SOL
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
(0.381)
MIN
0.125
(MIN
0.130 ± 0.005
(3.302 ± 0.127)
0.065
(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
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC486IN#PBF | 功能描述:IC DVR RS485 LOW PWR QUAD 16-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(biāo)準(zhǔn)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(yīng)商設(shè)備封裝:28-SOIC 包裝:管件 |
| LTC486ISW | 功能描述:IC DVR RS485 LOW PWR QUAD 16SOIC 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(biāo)準(zhǔn)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(yīng)商設(shè)備封裝:28-SOIC 包裝:管件 |
| LTC486ISW#PBF | 功能描述:IC DVR RS485 LOW PWR QUAD 16SOIC 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(biāo)準(zhǔn)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(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 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)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(yīng)商設(shè)備封裝:28-SOIC 包裝:管件 |
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