DP83826AE - Low-Latency 10/100 Ethernet PHY for EtherCAT | TI
料号： DP83826AE ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.2 | $5.20 |
| 10 | $4.8 | $48.00 |
| 100 | $4 | $400.00 |
| 500 | $3.8 | $1,900.00 |
| 1,000 | $3.6 | $3,600.00 |
DP83826AE 概述
An Ethernet PHY (physical layer transceiver) is the IC that bridges the digital MAC of a microcontroller or FPGA and the copper twisted-pair cable medium. Within the network hierarchy, the PHY sits below the MAC and above the magnetics and connector, encoding and decoding 10BASE-Te and 100BASE-TX frames per IEEE 802.3. In industrial automation, PHY latency and latency determinism directly affect cycle times and jitter in protocols such as EtherCAT, making PHY selection a system-level performance decision.
Key features of the DP83826AE include low and deterministic transmit-to-receive latency, support for 10BASE-Te and 100BASE-TX Ethernet protocols, MII and RMII media-independent interfaces for flexible MAC connectivity, and an extended temperature rating suited to harsh factory-floor environments. According to TI, the DP83826Ax family was specifically characterized to meet the stringent timing requirements of real-time industrial Ethernet systems, where propagation delay variation must be minimized and predictable.
Technically, the device integrates the analog line drivers, equalizers, clock recovery, and adaptive filtering required for robust Category-5 cable operation, while consuming low power to support dense multi-port industrial I/O. The RMII mode reduces pin count and controller overhead, while MII supports legacy MAC implementations. per TI's product comparison tool, the DP83826AE sits alongside the DP83826E, DP83826I, and DP83822H in TI's industrial PHY portfolio, with the AE variant optimized for EtherCAT timing and extended temperature.
Typical applications include EtherCAT slave controllers in servo drives, 6-axis robot arms, industrial vision systems such as those from Hanwha Vision, PLC communication modules, and machine-vision cameras requiring deterministic sub-microsecond network timing.
For design, ensure correct reset pin handling - the active-low reset requirements of the DP83826E and DP83826AE are discussed in TI E2E support threads, and magnetics selection should follow the datasheet reference design.
This page adds value beyond the manufacturer datasheet by consolidating drop-in alternatives, pricing references, and practical design guidance in one place.
直接替换替代料： DP83826AE ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
DP83826ERHBR
✅ 直接替换📋 参考替代料（不在目录中）
DP83826AIRHBT
✅ 直接替换📋 参考替代料（不在目录中）
DP83822HRHBR
✅ 直接替换📋 参考替代料（不在目录中）
DP83826AE 规格参数
| Product Type | Ethernet PHY transceiver |
| 数据速率 | 10/100 Mbps |
| Ethernet Protocols | 10BASE-Te, 100BASE-TX |
| Standard Compliance | IEEE 802.3 |
| MAC Interface | MII, RMII |
| Optimization | Low deterministic latency, EtherCAT optimized |
| 封装 | 32-VQFN (5x5 mm) |
| 工作温度 | -40C to +125C (extended) |
| 安装类型 | Surface Mount |
| Power Consumption | Low power (per TI description) |
| Management Interface | Serial management (MDIO/MDC) |
| 生命周期状态 | ACTIVE (per TI.com) |
| Typical Applications | EtherCAT, real-time industrial Ethernet |
DP83826AE 32-vqfn (5x5 mm) 引脚配置指南
DP83826AE（32-vqfn (5x5 mm) 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： DP83826AE.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DP83826AE 适用于 6 应用s: EtherCAT Slave Controllers, Servo Drives and Motion Control, Industrial Robot Arms, Machine Vision and Security Cameras, PLC and Industrial I/O Modules, Industrial Networking and Gateways.
EtherCAT Slave Controllers
The DP83826AE is purpose-built for EtherCAT slave nodes in industrial automation. EtherCAT slaves must forward frames with sub-microsecond, highly repeatable latency, and the DP83826AE's deterministic, low-latency PHY path - characterized by TI specifically for EtherCAT - directly reduces propagation delay variation in the ring. Used with an EtherCAT Slave Controller such as the AM243x or ET1100, the PHY connects via RMII and terminates to the RJ45 through integrated magnetics. Because latency jitter accumulates across every node in an EtherCAT ring, choosing a PHY characterized for the protocol measurably improves distributed-clock synchronization accuracy across dozens of slave stations in a machine or production line.
推荐
Servo Drives and Motion Control
Servo drives rely on cycle times of 62.5 us to 1 ms over EtherCAT, where PHY latency sets part of the node delay budget. The DP83826AE's deterministic latency allows drive vendors to guarantee communication jitter targets, while its -40C to +125C extended temperature rating survives drive cabinet environments near power electronics. In a typical design, the PHY sits between the drive MCU or FPGA and the isolation transformer, with RMII minimizing controller pin count. The low power consumption also reduces thermal load inside sealed drive housings, where every watt of dissipation affects capacitor lifetime and overall reliability of the motion axis.
推荐
Industrial Robot Arms
Multi-axis robot arms such as the 6-axis platforms discussed in TI E2E forum thread 1671290 use the DP83826E/DP83826AE family for EtherCAT joint communication. Each joint controller acts as an EtherCAT slave, so PHY latency determinism directly governs interpolation accuracy across axes. The DP83826AE's active-low reset must be sequenced with the controller supply - a documented integration detail in that forum thread. Its 32-VQFN footprint fits dense joint PCBs, and the extended temperature range covers motor-adjacent electronics where ambient temperatures far exceed commercial limits during continuous-duty motion cycles.
推荐
Machine Vision and Security Cameras
Industrial vision cameras, including those from Hanwha Vision evaluated in TI E2E thread 1643944, use the DP83826AERHBR for their Ethernet interface. Vision systems stream large, latency-sensitive image frames and often participate in deterministic networks (GigE-style timing or EtherCAT-based trigger distribution), so the DP83826AE's low, predictable latency and IEEE 802.3 compliance ensure reliable frame delivery. The low-power 32-VQFN design suits sealed camera housings with passive cooling, and the -40C to +125C range supports outdoor surveillance and factory-floor inspection installations subject to wide diurnal and seasonal temperature swings.
推荐
PLC and Industrial I/O Modules
Programmable logic controllers and remote I/O modules use the DP83826AE as the 100BASE-TX network port PHY for EtherCAT fieldbus backbones. The MII interface connects to legacy processor MACs while RMII suits modern MCUs with minimal pin usage, letting one PCB layout serve multiple controller families. Dense I/O racks install many PHYs side by side, so the DP83826AE's low power consumption reduces rack heat and its extended temperature rating tolerates unventilated cabinets. Deterministic latency preserves the cycle-time budget of distributed I/O updates across multi-slot configurations, ensuring synchronized outputs across the entire station.
推荐
Industrial Networking and Gateways
Protocol gateways translating between EtherCAT, PROFINET, and Modbus TCP deploy the DP83826AE on the real-time port where timing matters most, while using general-purpose PHYs such as the DP83822H on throughput-only ports. This mixed approach - DP83826AE for deterministic links, cost-optimized PHYs elsewhere - optimizes bill-of-materials cost without sacrificing real-time performance. The DP83826AE's 10BASE-Te support also enables long-cable or reduced-bandwidth segments common in brownfield factory retrofits. Extended temperature qualification and the compact 32-VQFN package allow the same gateway PCB design to serve both panel-mounted and DIN-rail enclosure variants.
推荐
推荐产品汇总
工程参考数据： DP83826AE ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | DP83826ERHBR | DP83826AIRHBT | DP83822HRHBR |
|---|---|---|---|---|
| Package | 32-VQFN (5x5 mm) | 32-VQFN (5x5 mm) - same | 32-VQFN (5x5 mm) - same | 32-VQFN (5x5 mm) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Ethernet Protocols | 10BASE-Te, 100BASE-TX | 10BASE-Te, 100BASE-TX | 10BASE-T, 100BASE-TX | 10BASE-T, 100BASE-TX |
| MAC Interface | MII, RMII | MII, RMII | MII, RMII | MII, RMII |
| Drop-in Status (per TI) | Reference part | Drop-in replacement with upgraded functionality | Same family, pin-compatible | Listed in TI compare tool |
关键差异点
- EtherCAT-optimized deterministic latency （对比 DP83822HRHBR)
- Extended temperature rating for harsh cabinets （对比 DP83826AIRHBT)
- Footprint-compatible upgrade path within TI family （对比 DP83826ERHBR)
设计说明
Reset sequencing is the most frequently reported DP83826AE/DP83826E integration issue. Per TI E2E thread 1671290 (6-axis robot arm application), the active-low reset must remain asserted until the supply rails and 25 MHz reference clock are stable; releasing reset too early leaves the PHY in an undefined register state. Use a voltage supervisor or RC circuit guaranteeing the datasheet minimum reset pulse width, and poll MDIO only after the internal configuration completes.
For the 32-VQFN (5x5 mm) package, connect the exposed die pad to a solid ground plane with an array of thermal vias - this pad is the primary ground return for the PHY analog circuitry. Route the RMII 50 MHz clock as a controlled-length trace, keep the 25 MHz crystal loop tight to the chip, and place the 0.1 uF decoupling capacitors within 2 mm of each supply pin. Follow the magnetics network in the datasheet typical application exactly, including the Bob Smith termination network on the cable side.
EtherCAT timing depends on both the PHY and the magnetics. Choose 100BASE-TX transformers from the datasheet qualified magnetics list, and keep the TX+/TX- and RX+/RX- pairs as 100-ohm differential traces routed away from switching-regulator nodes. Because the DP83826AE is characterized for deterministic latency, any board-level degradation of the analog front end (stub traces, missing terminations) shows up as increased delay variation across the EtherCAT ring - validate latency on your own PCB, not only on the reference design.
合规信息
Compliance data not present in the provided web search results; verify on the TI.com quality/environmental page for DP83826AE before release.
