参数资料
型号: ISL3158EIBZ-T
厂商: Intersil
文件页数: 1/22页
文件大小: 0K
描述: TXRX ESD 5V RS-485/422 8-SOIC
标准包装: 2,500
类型: 收发器
驱动器/接收器数: 1/1
规程: RS422,RS485
电源电压: 4.5 V ~ 5.5 V
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOICN
包装: 带卷 (TR)
1
ISL3150E
,ISL3152E,
ISL3153E,
ISL3155E,
ISL3156E,
ISL3158
E
±16.5kV ESD, Large Output Swing, 5V, Full
Fail-Safe, 1/8 Unit Load, RS-485/RS-422
Transceivers
ISL3150E, ISL3152E, ISL3153E,
ISL3155E, ISL3156E, ISL3158E
The ISL315xE are IEC61000 ESD protected, 5V
powered transceivers that meet the RS-485 and RS-422
standards for balanced communication. Driver outputs
and receiver inputs are protected against ±16.5kV ESD
strikes without latch-up.
Transmitters in this family deliver exceptional differential
output voltages (2.4V min), into the RS-485 required
54Ω load, for better noise immunity, or to allow up to
eight 120Ω terminations in “star” topologies.
These devices have very low bus currents so they
present a true “1/8 unit load” to the RS-485 bus. This
allows up to 256 transceivers on the network without
using repeaters.
Receiver (Rx) inputs feature a “Full Fail-Safe” design,
which ensures a logic high Rx output if Rx inputs are
floating, shorted, or on a terminated but undriven bus.
Rx outputs feature high drive levels - typically 28mA @
VOL = 1V (to ease the design of optocoupled isolated
interfaces).
Half duplex (Rx inputs and Tx outputs multiplexed
together) and full duplex pinouts are available. See
Table 1 on page 2 for key features and configurations by
device number.
Features
High Driver VOD . . . . . . . 2.4V (Min) @ RD = 54Ω
Better Noise Immunity, or Drive Up to 8 Terminations
±16.5kV IEC61000 ESD Protection on I/O Bus Pins
High Transient Overvoltage Tolerance . . . . ±100V
Full Fail-safe (Open, Short, Terminated) Receivers
High Rx IOL for Opto-Couplers in Isolated Designs
Hot Plug Circuitry - Tx and Rx Outputs Remain
Three-State During Power-up/Power-down
True 1/8 Unit Load for up to 256 Devices on the Bus
High Data Rates . . . . . . . . . . . . . . up to 20Mbps
Low Quiescent Supply Current . . . . . . . . . 600A
Ultra Low Shutdown Supply Current . . . . . . 70nA
Applications*(see page 17)
Utility Meters/Automated Meter Reading Systems
High Node Count Systems
PROFIBUS and Field Bus Networks, and Factory
Automation
Security Camera Networks
Building Lighting and Environmental Control Systems
Industrial/Process Control Networks
Exceptional Tx Drives Up To 8
Terminations While Still
Delivering 1.5V VOD
Large VOD Delivers Superior
Signal At Cable End For
Enhanced Noise Immunity
DIFFERENTIAL OUTPUT VOLTAGE (V)
DR
IVE
R
OUT
P
U
T
CURR
EN
T
(m
A)
0
123
45
0
10
40
60
80
100
120
140
30
50
70
90
110
130
20
8 TERMS
6 TERMS
2 TERMS
1 TERM
1.5
20ns/DIV
-3
-1
0
1
3
-2
2
OUTPUT
VOLT
AGE
(
V
)
20Mbps, 150’ UTP, DOUBLE 120Ω TERMS
ISL3158E
STANDARD
1.5V TX
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2006-2009 All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
July 30, 2009
FN6363.2
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