DP83822HFRHBT - 10/100 Ethernet PHY, 16kV ESD | Texas Instruments
MPN： DP83822HFRHBT ✓ 啟用中DP83822HFRHBT 概覽
An Ethernet PHY (physical layer device) is the interface IC that sits between a media access controller (MAC) and the physical network medium. In the networking hierarchy, it converts digital MAC frames into analog signals suitable for transmission over twisted-pair copper or optical fiber, handling encoding, line drivers, equalization, and auto-negotiation. The DP83822H family extends the standard DP83822HF with extended temperature range and enhanced ESD robustness for harsh environments.
Key features include MAC interface flexibility through standard MII, RMII, and RGMII, support for 100BASE-TX and 10BASE-Te over standard twisted-pair cable plus fiber-mode operation via an external fiber transceiver, 16-kV system-level ESD protection, and Energy-Efficient Ethernet (EEE), Wake-on-LAN (WoL), and programmable energy-saving modes. Cable diagnostics and a 50-MHz clock output (RMII reference) simplify system design.
Technically, the DP83822H integrates the DSP-based transmit path and adaptive equalizer receiver path required by IEEE 802.3 10/100-Mbps operation, with onboard regulators allowing single-supply design. Its low power consumption suits passively cooled industrial equipment, and pin-to-pin compatibility with TLK105, TLK106, TLK105L, and TLK106L enables drop-in upgrades.
Typical applications include industrial Ethernet nodes and EtherCAT slaves, factory automation PLCs, building automation controllers, and grid infrastructure where extended temperature and ESD robustness are mandatory.
Design consideration: maintain a clean 3.3-V supply with proper magnetics module selection and follow the datasheet layout guidelines for the analog MDI pairs to guarantee IEEE 802.3 compliance and ESD performance.
This page synthesizes verified distributor data, drop-in alternatives within the DP83822/TLK families, and practical design guidance not consolidated in the manufacturer datasheet alone.
直接替換替代品，適用於 DP83822HFRHBT — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： DP83822HFRHBT （相同外形與佔位） — 差異在於 Package, Cable Diagnostics, Clock Output, MAC Interface, Product Type.
DP83822IRHBT
✅ 直接替換聯絡詢價
查看資料表 →DP83822IFRHBT
✅ 直接替換聯絡詢價
查看資料表 →DP83822IRHBR
✅ 直接替換聯絡詢價
查看資料表 →TLK106
✅ 直接替換📋 參考替代品（不在目錄中）
TLK105L
✅ 直接替換📋 參考替代品（不在目錄中）
DP83822HFRHBT 規格
| 資料速率 | 10/100 Mbps |
| Number of Ports | 1 |
| MAC Interface | MII, RMII, RGMII |
| Fiber Support | Yes (via external fiber transceiver) |
| ESD Protection | 16 kV |
| 供應電壓 | 3.3 V single supply |
| 工作溫度 | -40C to +125C |
| 封裝 | VQFN-32 (RHB), 5.00 mm x 5.00 mm |
| 安裝類型 | Surface Mount |
| Energy-Efficient Ethernet (EEE) | Yes |
| Wake-on-LAN (WoL) | Yes |
| Cable Diagnostics | Yes |
| Clock Output | 50-MHz clock out (RMII reference) |
| Auto-Negotiation | Yes (IEEE 802.3) |
| Pin-Compatible Family | TLK105, TLK106, TLK105L, TLK106L, DP83822 series |
DP83822HFRHBT vqfn-32 (rhb), 5.00 mm x 5.00 mm 腳位配置指南
DP83822HFRHBT（vqfn-32 (rhb), 5.00 mm x 5.00 mm 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： DP83822HFRHBT.
請參閱 資料表 以查看完整腳位配置。
典型應用
DP83822HFRHBT 適用於 6 應用s: Industrial Ethernet Nodes / EtherCAT Slaves, PLC and Motor Drive Communications, Grid Infrastructure and Smart Meters, Building Automation and HVAC Controllers, Test and Measurement Instruments, Networked Security and IP Cameras (Fiber Option).
Industrial Ethernet Nodes / EtherCAT Slaves
The DP83822HFRHBT's -40C to +125C extended temperature range and 16-kV ESD robustness directly address the harsh electrical environment of factory automation. TI's cost-optimized EtherCAT slave reference design (dual port, AMIC110-based) demonstrates the part in a high-EMC-immunity industrial Ethernet node. Connected to the MAC via RMII with the integrated 50-MHz clock output, the PHY needs no external oscillator, cutting BOM cost. EEE and programmable sleep modes reduce rail power in sealed, passively cooled control cabinets, while cable diagnostics speed field commissioning of long twisted-pair runs.
推薦
PLC and Motor Drive Communications
Programmable logic controllers and variable-frequency drives experience wide ambient swings, vibrational cable stress, and high ESD exposure. The DP83822HFRHBT fits because its extended temperature rating matches the -40C to +125C ambient envelope of drive cabinets, and its 16-kV ESD performance tolerates discharge events on shielded Ethernet runs near power electronics. With single 3.3-V supply operation and low active power, it integrates cleanly into existing 3.3-V control rails. MII/RGMII flexibility lets one PHY design serve both MCU-based (MII/RMII) and FPGA-based (RGMII) control platforms without MDI-side redesign.
推薦
Grid Infrastructure and Smart Meters
Reclosers, feeder monitors, and substation controllers demand components qualified for extended temperature and robust against surge and ESD on long outdoor cable runs. The DP83822HFRHBT's 16-kV ESD rating and -40C to +125C range align with these requirements, and fiber-mode operation via an external fiber transceiver provides galvanic isolation between field equipment and control-room networks - a key advantage of the HF variant. Wake-on-LAN and programmable energy-saving modes lower standby draw in battery-backed installations. Cable diagnostics assist remote fault location on buried or aerial copper spans.
推薦
Building Automation and HVAC Controllers
Building automation controllers (BACnet/IP, Modbus TCP) are often installed in mechanical rooms where ambient temperatures approach industrial ranges and Ethernet cabling picks up ESD from air-handling equipment. The DP83822HFRHBT provides the -40C to +125C margin and 16-kV ESD robustness needed for these environments while drawing low power in EEE mode during idle network periods - reducing thermal load in sealed wall-mount enclosures. Its RMII mode with integrated 50-MHz clock output simplifies connection to cost-sensitive MCU-based controller SoCs, and pin compatibility with the DP83822I family allows a common PCB for standard- and extended-temperature SKUs.
推薦
Test and Measurement Instruments
Bench and portable instruments (data loggers, oscilloscopes with LAN, networked sensors) require a low-power, IEEE 802.3-compliant 10/100 PHY with minimal external components. The DP83822HFRHBT suits this space: single 3.3-V supply, integrated 50-MHz RMII clock, and cable diagnostics that double as a field troubleshooting tool. Fiber support in the HF variant allows isolated LXI-style connections in electrically noisy measurement setups. The extended temperature range also covers automotive-grade test racks and outdoor telemetry units that see -40C to +85C or beyond, eliminating a second qualification effort across product lines.
推薦
Networked Security and IP Cameras (Fiber Option)
Outdoor and perimeter security equipment operates across wide temperature extremes and long cable runs susceptible to surge events. The DP83822HFRHBT's fiber-mode operation via an external fiber transceiver enables media-converter-free isolated links between cameras and network video recorders, while 16-kV ESD robustness withstands discharge on copper drops. Low power with EEE is valuable in PoE-splitter-fed cameras where power budgets are tight. The 5x5 mm VQFN-32 footprint fits compact camera module boards, and the -40C to +125C rating covers unheated enclosures in arctic to desert deployments.
推薦
推薦產品摘要
工程參考資料，適用於 DP83822HFRHBT — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | DP83822IRHBT | DP83822IFRHBT | DP83822IRHBR | TLK106 |
|---|---|---|---|---|---|
| Package | VQFN-32 (RHB) 5x5 mm | VQFN-32 (RHB) - same | VQFN-32 (RHB) - same | VQFN-32 (RHB) - same | VQFN-32 (RHB) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Data Rate | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps |
| MAC Interface | MII, RMII, RGMII | MII, RMII, RGMII | MII, RMII, RGMII | MII, RMII, RGMII | MII, RMII |
| Fiber Support | Yes | No | Yes | No | No |
| Operating Temperature | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +85C | 0C to +70C |
| EEE / WoL Power Saving | Yes | Yes | Yes | Yes | No |
| Cable Diagnostics | Yes | Yes | Yes | Yes | No |
| Role | Extended-temp fiber-capable flagship | Standard-temperature, copper-only | Standard-temperature, fiber-capable | Standard-temperature, full reel | Legacy predecessor |
主要差異化特點
- Extended -40C to +125C temperature range (對比DP83822IRHBT)
- Fiber mode support via external transceiver (對比DP83822IRHBT)
- Modern feature set over legacy TLK106 (對比TLK106)
設計說明
Follow the TI DP83822 datasheet layout guidelines for the MDI differential pairs: maintain 100-ohm controlled impedance on TXOP/TXON and RXOP/RXON, keep the traces as short and matched as possible, and place the magnetics module (with integrated termination per the datasheet magnetics selection table) close to the PHY. Route the 50-MHz RMII clock output away from MDI pairs to prevent coupling into the analog front end and preserve IEEE 802.3 template margins.
The DP83822HFRHBT runs from a single 3.3-V supply with internal regulation of the core rails. Decouple the VDD pins with a network of 0.1-uF ceramics per the datasheet recommended bypass network, plus bulk capacitance near the device. Do not load internal regulated outputs externally beyond datasheet limits. To achieve full EEE savings, ensure firmware properly configures the EEE and sleep modes via the MDIO/Management interface after link-up.
Migrating from a TLK105/TLK106 design: although pin-to-pin compatible, the DP83822 adds strap options and register maps that differ - review the strap configuration table in the TI datasheet and update PHY initialization code. If your design was laid out for the DP83822I (-85C), substituting the HF variant is safe, but substituting the reverse into a 125C application is not: the I-version lacks the extended temperature range and must not be used above +85C.
合規資訊
Compliance status not stated in the retrieved web data; confirm RoHS/REACH status on the TI product page or distributor environmental data before ordering.
