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TI SN65HVD72DRBR
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- TI(Texas Instruments) SN65HVD72DRBR
- Type
- TI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- TI(Texas Instruments)
- Electronic Component
- SN65HVD72DRBR
- Electronic Component
- 1
- Package
- SON-8(3x3)
- Type
- Transceiver
- Electronic Component
- RS-485 / RS-422IC
- Electronic Component
- 0.06g
- Electronic Component
- 213
- Electronic Component
- 1
- Features
- Tx / Rx
- Electronic Component
- BM0230007146
- Operating Temperature
- 40℃~+125℃
- Operating Voltage
- 3V~3.6V
- Receiver
- 1
- Data
- 250Kbps
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SN65HVD72DRBR 产品概述
一、简介
SN65HVD72DRBR 是德州仪器（TI）推出的一款 RS‑485/RS‑422 差分收发器，单驱动器、单接收器，工作于半双工通信模式。器件工作电源为 3.0 V ～ 3.6 V，典型数据速率可达 250 kbps，支持多节点总线接入，节点数可达 213。器件耐静电能力为 ±8 kV（人体模型），工作温度范围为 -40 ℃ ～ +125 ℃，静态电流约为 950 µA，封装为 SON‑8 (3×3)。
二、主要特性
- 单驱动器 / 单接收器，支持 RS‑485/RS‑422 差分通信（半双工）。
- 供电电压：3.0 V ～ 3.6 V，适用于 3.3 V 系统。
- 数据速率：最高可达 250 kbps，满足常见工业总线速率需求。
- 总线节点：最多可支持 213 个节点，适合大规模分布式网络。
- 低静态电流：典型静态电流 950 µA，有利于节能设计。
- 工业级温度：-40 ℃ ～ +125 ℃，适合恶劣环境。
- ESD 抗扰度：±8 kV（人体模型）。
- 封装：SON‑8 (3×3)，节省 PCB 面积。
三、适用场景与优势
该收发器适用于工业自动化、楼宇控制、仪表抄表、楼宇安防、现场总线节点、传感器/执行器接口等需要长距离、抗干扰和多节点接入的差分通信场合。其低静态功耗与工业温度等级，使之在低功耗与高可靠性并重的系统中具有优势。半双工设计便于实现总线式多点通信，减少布线复杂度。
四、设计与使用建议
- 终端匹配：在总线两端采用差分终端电阻（典型值 100 Ω ～ 120 Ω）以匹配电缆特性，减少反射。
- 偏置与失效保护：在长线或多节点系统应设置偏置电阻（pull‑up / pull‑down）以保证空闲总线的确定电平，避免收发器误触发。
- 总线仲裁：在半双工网络中通过驱动器使能信号合理管理发送时隙，避免总线争用和冲突。
- 去耦与布线：在 VCC 和 GND 之间靠近器件放置 0.1 μF 陶瓷去耦电容；差分线对布线尽量短且并行、保持恒定阻抗，避免与高速或噪声源平行走线。
- 保护措施：器件已具备一定 ESD 抗扰能力，但若接口直连外部环境（长缆、野外安装）建议额外增加 TVS 或保护网络以提升可靠性。
- 热与可靠性：在高温或高密度 PCB 布局下注意散热与焊接工艺，遵循制造商封装说明。
五、封装与获取
封装型号：SON‑8 (3×3)。订购时以完整料号 SN65HVD72DRBR 为准，建议参照 TI 官方数据手册获取详细的电气特性、引脚定义、时序和典型应用电路，以便在具体设计中验证时序、驱动能力与容限。
如需参考电路示意或在特定应用（如长距离抄表、多节点实时网络）中优化参数，我可以提供更具体的布线与偏置方案。
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