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RENESAS ISL43485IBZ-T ISL43485IBZ
Configuration
1 options
Configuration
21+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- RENESAS ISL43485IBZ-T
- Type
- 8-SOIC
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- RENESAS
- Electronic Component
- ISL43485IBZ-T
- Electronic Component
- 1
- Package
- 8-SOIC
- Type
- Transceiver
- Electronic Component
- RS-485 / RS-422IC
- Electronic Component
- 0.001g
- Electronic Component
- 32
- Electronic Component
- 1
- Features
- Tx / Rx;;;; Low Power
- Electronic Component
- BM0264843413
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 3.3V~3.6V
- Receiver
- 1
- Data
- 30Mbps
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
ISL43485IBZ-T 产品概述
一、概述
ISL43485IBZ-T 为 RENESAS（瑞萨）系列高性能半双工收发器，集成 1 路驱动器与 1 路接收器，支持 RS‑422 与 RS‑485 物理层。工作电压 3.3V–3.6V，数据速率最高可达 30Mbps，节点数支持至 32 个，工作温度范围 -40°C 至 +85°C，适用于工业级串行总线和高速差分通信场景。
二、主要特性
- 电源：3.3V–3.6V 供电，低功耗静态电流典型值 1.2mA。
- 通讯：半双工 RS‑422/RS‑485，数据速率可达 30Mbps，最多 32 节点。
- 保护与控制：内置自动故障恢复、Tx/Rx 使能控制、热关断保护、使能关断与过流保护。
- 模式支持：低功耗模式以降低待机功耗，适合电源受限设备。
- 封装：标准 8‑SOIC 便于 PCB 布局与散热设计。
三、功能说明
器件在半双工总线中通过使能引脚控制驱动器与接收器状态，支持在多节点网络中通过软件或外部逻辑实现总线仲裁。自动故障恢复与过流保护在出现短路或总线冲突时限制电流并在故障消除后自动恢复，热关断在器件过热时关闭输出以保护芯片。
四、典型应用
- 工业自动化现场总线、PLC 与 I/O 设备间的高速通信；
- 楼宇自动化、安防与智能仪表；
- 数据采集、运动控制与嵌入式串口扩展；
- 需要低功耗待机与可靠保护的远端节点设备。
五、设计与布局建议
- 在长线传输处采用差分终端电阻，并根据网络拓扑配置偏置电阻以实现失效安全；
- 利用 Tx/Rx 使能管脚避免总线冲突，必要时使用仲裁逻辑与方向控制；
- 考虑过流与热保护动作，留足散热路径与铜箔面积；
- 在电源旁加旁路电容，保持 3.3V 稳定，减少高数据速率下的电源噪声。
六、封装与订购信息
器件封装为 8‑SOIC，适配通用 PCB 尺寸与焊接工艺。型号 ISL43485IBZ-T，品牌 RENESAS（瑞萨），适用于需兼顾高速、低功耗与多重保护的工业通讯设计。若需更详细的管脚分配、电气特性与参考设计，请参阅厂商数据手册。
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