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参数资料
型号： LTC486
厂商： Linear Technology Corporation
英文描述： Quad Low Power RS485 Driver
中文描述： 四路低功耗485驱动器
文件页数： 8/8页
文件大小： 227K
代理商： LTC486
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
相关PDF资料
PDF描述
LTC486C ; LED Color:Red; Luminous Intensity:63mcd; Viewing Angle:80 ; Forward Current:20mA; Forward Voltage:2.1V; Operating Temperature Range:-40 C to +100 C RoHS Compliant: Yes
LTC486CN Quad Low Power RS485 Driver
LTC486CS Quad Low Power RS485 Driver
LTC486I Quad Low Power RS485 Driver
LTC486IN Quad Low Power RS485 Driver
相关代理商/技术参数
参数描述
LTC486CN 功能描述:IC DVR RS485 LOW PWR QUAD 16-DIP 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
LTC486CN#PBF 功能描述:IC DVR RS485 LOW PWR QUAD 16-DIP RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 产品培训模块:RS-232 & USB Transceiver 标准包装:2,000 系列:- 类型:收发器 驱动器/接收器数:1/1 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-SSOP（0.209"，5.30mm 宽） 供应商设备封装:16-SSOP 包装:带卷 (TR) 其它名称:296-19849-2
LTC486CNPBF 制造商:Linear Technology 功能描述:LTC486CNPBF
LTC486CSW 功能描述:IC DVR RS485 LOW PWR QUAD 16SOIC 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
LTC486CSW#PBF 功能描述:IC DVR RS485 LOW PWR QUAD 16SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 产品培训模块:RS-232 & USB Transceiver 标准包装:2,000 系列:- 类型:收发器 驱动器/接收器数:1/1 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-SSOP（0.209"，5.30mm 宽） 供应商设备封装:16-SSOP 包装:带卷 (TR) 其它名称:296-19849-2
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