ISO35T 隔离式 3.3V 全双工和半双工 RS-485 收发器
The ISO35T is an isolated differential line transceiver with integrated oscillator outputs that provide the primary voltage for an isolation transformer. The device is a full-duplex differential line transceiver for RS-485 and RS-422 applications that can easily be configured for half-duplex operation by connecting pin 11 to pin 14, and pin 12 to pin 13.
These devices are ideal for long transmission lines since the ground loop is broken to allow for a much larger common-mode voltage range. The symmetrical isolation barrier of the device is tested to provide 4242VPK of isolation per VDE for 60s between the bus-line transceiver and the logic-level interface.
Any cabled I/O can be subjected to electrical noise transients from various sources
|
ISO1176T |
ISO3086T |
ISO35T |
| Supply Voltage(s)(V) |
RS-485 |
RS-485 |
RS-485 |
| Datarate(Mbps) |
2500 |
2500 |
2500 |
| TTL/CMOS Input Threshold |
5 |
5 |
3.3 |
| Rating |
40 |
20 |
1 |
| Fault Protection(V) |
TTL |
TTL |
TTL |
| Isolated |
16 SOIC |
16 SOIC |
16 SOIC |
| Operating Temperature Range(°C) |
Catalog |
Catalog |
Catalog |
| Approx. Price (US$) |
-9 to 14 |
-9 to 14 |
-9 to 14 |
| Duplex |
Yes |
Yes |
Yes |
| Number of Nodes |
-40 to 85 |
-40 to 85 |
-40 to 85 |
| Fail Safe |
3.30 | 1ku |
|
3.25 | 1ku |
| Signaling Rate(Mbps) |
Half |
Full |
Full |
| ESD(kV) |
256 |
256 |
256 |
| Pin/Package |
Idle,Open,Short |
Idle, Open, Short |
Idle,Open,Short |
| ICC(Max)(mA) |
10 |
11 |
16 |
| Receivers Per Package |
16SOIC |
16SOIC |
16SOIC |
| # of TX/RX |
|
|
27 |
| VCC(Min)(V) |
1 TX / 1 RX |
1 TX / 1 RX |
1 TX / 1 RX |
| VCC(Max)(V) |
4.75 |
4.5 |
3 |
| Drivers Per Package |
5.25 |
5.5 |
3.6 |
| Thermal Shutdown |
Yes |
Yes |
Yes |
ISO35T 特性
- 3000VRMS / 4242VPK Isolation
- Bus-Pin ESD Protection
- 16 kV HBM Between Bus-Pins and GND2
- 6 kV HBM Between Bus-Pins and GND1
- 1/8 Unit Load – Up to 256 Nodes on a Bus
- Designed for RS-485 and RS-422 Applications
- Signaling Rates up to 1 Mbps
- Thermal Shutdown Protection
- Typical Efficiency > 60% (ILOAD = 100 mA)
- see sluu470a
- Low Driver Bus Capacitance 16 pF (Typ)
- 50 kV/us Typical Transient Immunity
- UL 1577, IEC 60747-5-2 (VDE 0884, Rev. 2) Approvals Pending
- Fail-safe Receiver for Bus Open, Short, Idle
- Logic Inputs are 5-V Tolerant
- APPLICATIONS
- Isolated RS-485/RS-422 Interfaces
- Factory Automation
- Motor/Motion Control
- HVAC and Building Automation Networks
- Networked Security Stations
ISO35T 芯片订购指南
| 器件 |
状态 |
温度 |
价格 |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| ISO35TDW |
ACTIVE |
-40 to 85 |
3.60 | 1ku |
SOIC (DW) | 16 |
40 | TUBE |
ISO35T |
| ISO35TDWR |
ACTIVE |
-40 to 85 |
3.00 | 1ku |
SOIC (DW) | 16 |
2000 | LARGE T&R |
ISO35T |
ISO35T 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| ISO35TDW |
Green (RoHS & no Sb/Br) |
Call TI |
Level-3-260C-168 HR |
ISO35TDW |
ISO35TDW |
| ISO35TDWR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
ISO35TDWR |
ISO35TDWR |
ISO35T 应用技术支持与电子电路设计开发资源下载
- ISO35T 数据资料 dataSheet 下载.PDF
- TI 德州仪器隔离器选型与价格 . xls
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 使用数字隔离器设计隔离式 I2C 总线接口 (zhct119.PDF, 339 KB)
- 1Q 2011 Issue Analog Applications Journal (slyt399.PDF, 964 KB)
- 接口选择指南 (Rev. D) (PDF 2994 KB)
- Signaling Rate vs. Distance for Differential Buffers (PDF 420 KB)
- Q1 2009 Issue Analog Applications Journal (slyt319.PDF, 1.39 MB)
- Isolated RS-485 Reference Design (PDF 80 KB)
- 无铅组件涂层的保存期评估 (PDF 1305 KB)
- Analog Signal Chain Guide (8.62 MB)
- Industrial Interface IC Solutions (101 KB)
ISO35T 工具和软件