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Texas Instruments DP83822HRHBT
- Part No.:
- DP83822HRHBT
- Manufacturer:
- Texas Instruments
- Category:
- Specialized
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
DP83822HRHBT.pdf
- Description:
- IC INTERFACE SPECIALIZED 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,627
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Product details
Overview
DP83822HRHBT from Texas Instruments is a robust, low-power 10/100Mbps Ethernet physical layer transceiver designed for industrial environments. It supports IEEE 802.3u (100BASE-TX/10BASE-Te), operates from –40°C to 125°C, delivers <120mW at 1.8V AVD, and integrates RGMII/RMII/MII MAC interfaces with programmable termination impedance.
For engineers reviewing the DP83822HRHBT datasheet, DP83822HRHBT pinout, DP83822HRHBT application, or DP83822HRHBT equivalent, key selection criteria include IEC 61000-4-2 ±8kV contact ESD rating, Energy Efficient Ethernet (IEEE 802.3az) support, Wake-on-LAN capability, cable diagnostics, and compatibility with harsh-temperature industrial Ethernet fieldbus systems such as PROFINET®.
Technical Context
The DP83822HRHBT implements a fully integrated PHY layer with auto-negotiation, Auto-MDIX in forced modes, and configurable PMD signaling for 10BASE-Te, 100BASE-TX, or 100BASE-FX media. Its analog front-end includes differential TD_P/TD_M transmit outputs and RD_P/RD_M receive inputs with programmable swing and symmetry control via register 0x0403.
It supports three MAC interface modes-MII, RMII, and RGMII-with independent clocking domains: 25/2.5MHz for MII/RGMII and 50/25MHz for RMII leader/follower configurations. Internal bias resistor (RBIAS) connection and integrated pull-up/pull-down networks eliminate external strapping components for most configuration pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 10/100Mbps full-duplex operation compliant with IEEE 802.3u; supports 100BASE-FX when configured (DP83822HRHBT variant confirmed for industrial temp range) |
| Operating Temperature | –40°C to +125°C ambient; validated for extended thermal cycling in motor drives and grid infrastructure |
| Power Consumption | <120mW at 1.8V AVD supply; <220mW at 3.3V AVD - enables fanless industrial enclosure designs |
| ESD Robustness | ±8kV IEC 61000-4-2 contact discharge on PMD pins (TD_P/TD_M/RD_P/RD_M); meets Class A EFT at 4kV per IEC 61000-4-4 |
| MAC Interface | RGMII/RMII/MII selectable via hardware straps; RGMII timing skew controlled to ±500ps (Tx) and 1–1.8ns (Rx) |
| Emissions Compliance | CISPR 22 Class B conducted and radiated emissions - reduces need for external filtering in factory automation systems |
| Diagnostic Features | Built-in cable diagnostics (open/short detection), loopback modes (digital/analog), rapid link-down detection (<1ms response) |
Pinout & Package
The DP83822HRHBT is housed in a 32-pin VQFN package (RHB), 5.00mm × 5.00mm body size with exposed thermal pad. This RoHS-compliant, lead-free package supports automated optical inspection and high-density PCB layouts typical of industrial controllers and motor drives.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TD_P / TD_M | Differential Transmit Output | Configurable 10/100BASE-TX or 100BASE-FX output pair; supports 0.95–1.05Vpk swing at 100Mbps with ±10% register-adjustable amplitude |
| RD_P / RD_M | Differential Receive Input | Accepts 0.22–1.8Vpk-pk differential input for 100BASE-FX; jitter tolerance up to 0.45UI ensures reliable fiber link acquisition |
| TX_CLK / RX_CLK | MAC Clock Interface | MII/RGMII reference clocks (25/2.5MHz); TX_CLK defaults to output during reset, then becomes input in RGMII mode post-initialization |
| MDIO / MDC | Serial Management Interface | IEEE 802.3 clause 22 compliant; MDC supports up to 25MHz clock; MDIO requires 2.2kΩ external pull-up |
| INT / PWDN_N | Interrupt / Power-Down Control | Open-drain output with weak internal pull-up; configurable via register as interrupt sink or active-low power-down enable |
| RBIAS | Analog Bias Reference | Requires 4.87kΩ ±1% resistor to GND; sets internal current sources for PMD driver/receiver biasing and ESD protection networks |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Robust ESD Protection | ±8kV IEC 61000-4-2 contact discharge on PMD pins - eliminates need for external TVS diodes in most industrial Ethernet ports |
| Flexible I/O Voltage Support | 1.8V/2.5V/3.3V VDDIO options - enables direct interfacing with modern low-voltage SoCs without level shifters |
| Energy Efficient Ethernet | IEEE 802.3az-compliant low-power idle (LPI) mode - reduces average power by >50% during packet gaps in PROFINET RT traffic |
| Start-of-Frame Detection | Hardware timestamp trigger for IEEE 1588 PTP synchronization - enables sub-microsecond time alignment in real-time industrial networks |
| Programmable Termination Impedance | On-die MII/RMII/RGMII termination adjustable via strap pins or registers - improves signal integrity across varying PCB trace lengths and stackups |
Applications
| Motor Drives | Factory Automation |
|---|---|
Use Scenario: Integrated servo drive with real-time motion control over Industrial Ethernet. IC Role / Device Role / Timing Role: PHY layer transceiver handling 100BASE-TX physical signaling between FPGA-based motion controller and EtherCAT master. Use Value: ±8kV ESD rating prevents field failures in high-noise motor cabinet environments; rapid link-down detection (<1ms) enables immediate fault isolation during bus reconfiguration. | Use Scenario: PLC backplane module requiring deterministic communication with distributed I/O over PROFINET. IC Role / Device Role / Timing Role: Low-latency 100Mbps PHY providing IEEE 1588 start-of-frame timestamping for synchronized cyclic data exchange. Use Value: RGMII interface with <1.8ns Rx data-to-clock skew ensures setup/hold compliance with high-speed ARM Cortex-A SoCs; -40°C to 125°C rating supports convection-cooled enclosures. |
| Grid Infrastructure | Building Automation |
Use Scenario: Substation RTU communicating over hardened Ethernet links in outdoor cabinets. IC Role / Device Role / Timing Role: Dual-role PHY supporting both copper (100BASE-TX) and fiber (100BASE-FX) media via same pinout and register set. Use Value: CISPR 22 Class B emissions compliance avoids costly shielding; 100BASE-FX mode enables 2km fiber runs without external transceivers. | Use Scenario: Smart HVAC controller connecting to BACnet/IP backbone via managed switch. IC Role / Device Role / Timing Role: Low-power Ethernet PHY enabling Wake-on-LAN (WoL) for remote firmware updates without mains power interruption. Use Value: <120mW consumption at 1.8V AVD extends battery backup runtime; integrated cable diagnostics reduce commissioning time during field installation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10/100Mbps Ethernet PHY applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DP83822I | Same core PHY, but rated for –40°C to +85°C ambient; no 100BASE-FX support | Suitable for commercial-grade building automation panels without extended temperature or fiber requirements | Select DP83822I only if operating temperature stays below 85°C and fiber interface is unnecessary |
| TLK106L | Legacy TI PHY; lacks EEE, WoL, cable diagnostics, and IEC 61000-4-2 ±8kV ESD rating; 32-pin QFN but different pinout | Used in cost-sensitive legacy industrial gateways where feature set is minimal and thermal stress is low | DP83822HRHBT offers pin-compatible upgrade path per TI documentation - retains same footprint but adds robustness and power savings |
Compared with DP83822I, the DP83822HRHBT adds 100BASE-FX support and extended temperature range; compared with TLK106L, it delivers superior ESD immunity, energy efficiency, and diagnostic capability - making it the preferred choice for new industrial designs requiring long-term reliability and feature scalability.
Availability
DP83822HRHBT is available at Aetrix Electronics and suitable for motor drives, factory automation systems, and grid infrastructure equipment requiring stable component supply across extended temperature ranges and high-reliability Ethernet connectivity.
Supply support for DP83822HRHBT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.
The DP83822HRHBT belongs to TI's industrial Ethernet PHY product line, engineered specifically for noise-immune, thermally resilient, and low-power wired connectivity in harsh environments - including robotics, motor control, and real-time fieldbus applications.
FAQ
What is the maximum operating temperature for DP83822HRHBT?
The DP83822HRHBT is rated for continuous operation from –40°C to +125°C ambient temperature. This specification is validated per TI's recommended operating conditions and thermal metrics (RθJA = 41.0°C/W), making it suitable for sealed motor drive enclosures and outdoor grid infrastructure cabinets without forced cooling.
Does DP83822HRHBT support 100BASE-FX fiber optic interface?
Yes, DP83822HRHBT supports 100BASE-FX operation. The device automatically configures its RD_P/RD_M and TD_P/TD_M pins for fiber signaling when enabled via register control or hardware strap, with specified differential output swing of 0.9–1.1Vpk-pk and input sensitivity down to 0.22Vpk-pk.
What MAC interfaces does DP83822HRHBT support?
DP83822HRHBT supports MII, RMII, and RGMII MAC interfaces through hardware strap configuration. Each mode uses dedicated timing constraints: MII/RGMII require 25/2.5MHz clocks, while RMII supports 50MHz (follower) or 25MHz (leader) reference clocks - all verified in TI's SNLS505H datasheet timing tables.
How does DP83822HRHBT implement Energy Efficient Ethernet (EEE)?
DP83822HRHBT complies with IEEE 802.3az by entering Low Power Idle (LPI) mode during packet gaps. It asserts LPI quiescent state on the PMD interface and synchronizes exit latency with MAC-layer signaling - reducing dynamic power by >50% in PROFINET RT cyclic traffic patterns without compromising link stability.
Is DP83822HRHBT pin-compatible with TLK106L?
Yes, DP83822HRHBT is a pin-to-pin upgradeable replacement for TLK106L per TI's official device comparison table and migration guidance. Both use 32-pin VQFN (RHB) packages with identical footprint and thermal pad layout, enabling drop-in replacement in existing designs with enhanced features and robustness.
DP83822HRHBT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Ethernet
- Interface:
- MII, RMII
- Voltage - Supply:
- 1.71V ~ 3.45V
- Supplier Device Package:
- 32-VQFN (5x5)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
DP83822HRHBT FAQ
1.How can I place an order for DP83822HRHBT through Aetrix?
Please submit a Request for Quotation (RFQ) for DP83822HRHBT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DP83822HRHBT reliable?
The price and inventory of DP83822HRHBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DP83822HRHBT is usually 5 days.
3.What payment methods are accepted for DP83822HRHBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DP83822HRHBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DP83822HRHBT?
DP83822HRHBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DP83822HRHBT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DP83822HRHBT?
For technical support, including DP83822HRHBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DP83822HRHBT requirements.
6.How does Aetrix verify that DP83822HRHBT is sourced from the original manufacturer or authorized distributors?
All DP83822HRHBT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DP83822HRHBT meets industry standards.
7.What is the process for return or replacement of DP83822HRHBT?
All DP83822HRHBT units undergo pre-shipment inspection (PSI). If there is an issue with DP83822HRHBT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DP83822HRHBT part is unused and in its original packaging.
Return procedure for DP83822HRHBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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