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RENESAS ISL3158EIBZ-T ISL3158EIBZ
Configuration
1 options
Configuration
22+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- RENESAS ISL3158EIBZ-T
- Type
- RENESAS
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- RENESAS
- Electronic Component
- ISL3158EIBZ-T
- Electronic Component
- 1
- Package
- 8-SOIC
- Type
- Transceiver
- Electronic Component
- RS-485 / RS-422IC
- Electronic Component
- 0.186g
- Electronic Component
- 512
- Electronic Component
- 1
- Features
- Tx / Rx;;;;; Low Power
- Electronic Component
- BM0264679043
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 4.5V~5.5V
- Receiver
- 1
- Data
- 20Mbps
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
ISL3158EIBZ-T 产品概述
一、产品简介
ISL3158EIBZ-T 是瑞萨（Renesas）推出的一款半双工差分收发器，封装为 8-SOIC，集成 1 路驱动器和 1 路接收器，兼容 RS-422/RS-485 总线标准。器件工作电压范围为 4.5V ~ 5.5V，支持最高 20Mbps 的数据速率，单总线可连接多达 512 个节点，适用于工业现场总线与远程 I/O 等苛刻电气环境。
二、主要特性
- 半双工通信，Tx/Rx 启用控制，适合主/从或多节点多主网络架构。
- 低静态电流：典型 550 µA，支持低功耗模式，适合能耗敏感系统。
- 宽工作温度：-40℃ ~ +85℃，满足工业级应用。
- 强抗静电：静电保护达 ±16.5 kV（人体模式），提高现场可靠性。
- 多重保护功能：热插拔保护、热关断（热关机）、过流保护、失效保护与自动故障恢复、使能关断等，提升系统容错能力。
三、电气与可靠性指标
- 工作电压：4.5V ~ 5.5V（推荐 5V ±10%）。
- 数据速率：最高 20 Mbps（视线路长度与拓扑而定）。
- 节点数：支持多达 512 节点，适合大规模分布式网络。
- 静态/待机电流：约 550 µA，进入低功耗模式可进一步降低能耗。
- 温度与封装：-40℃ 至 +85℃，8-SOIC 便于 PCB 布局与散热管理。
四、设计与应用要点
- 终端匹配：半双工总线两端应配置差分终端电阻（如 120 Ω）以抑制反射。
- 偏置网络：使用合适的上拉/下拉偏置电阻保证空闲总线的确定性电平（结合器件失效保护特性）。
- 方向控制：利用 Tx/Rx 启用引脚（DE/RE）管理收发方向，避免总线冲突；在多节点系统中实现优先级/仲裁机制。
- 保护与布局：在易受干扰的环境中建议并联共模电感与 TVS 二极管，靠近 VCC 放置去耦电容，减小串扰与 EMI。
- 热与过流：器件内建热关断与过流保护，但仍需保证 PCB 散热路径和合理电流限制元件，避免长期热应力。
五、典型应用场景
适用于工业自动化、楼宇控制、仪表遥测、能源管理、智能电表、模组化控制器与现场网关等需要高可靠性差分通讯的场合。其热插拔与自动故障恢复能力尤其适合带电维护和现场更换的场景。
六、总结
ISL3158EIBZ-T 将高抗扰动能力、完整的保护机制与低功耗特性集于一身，适合工业级 RS-422/RS-485 半双工网络。采用 8-SOIC 封装、宽电压与温度范围，使其在工程实现上具备良好的兼容性与可维护性。建议在系统设计时关注终端匹配、偏置策略与电磁兼容措施，以发挥器件的最佳性能。
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