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Texas Instruments DP83822IFRHBR
- Part No.:
- DP83822IFRHBR
- Manufacturer:
- Texas Instruments
- Category:
- Specialized
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
DP83822IFRHBR.pdf
- Description:
- IC INTERFACE SPECIALIZED 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,783
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Product details
Overview
DP83822IFRHBR 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/100BASE-FX/10BASE-Te), operates from –40°C to +85°C, delivers <220mW at 3.3V AVD, and integrates RGMII/RMII/MII MAC interfaces with programmable termination impedance. It enables reliable wired connectivity in motor drives and Profinet-capable real-time industrial Ethernet systems.
For engineers reviewing the DP83822IFRHBR datasheet, DP83822IFRHBR pinout, DP83822IFRHBR application, or DP83822IFRHBR equivalent, this page provides verified technical context, exact pin functions, industrial-grade ESD/EFT immunity specs (±8kV contact, Class A 4kV EFT), cable diagnostics, Wake-on-LAN, and Energy Efficient Ethernet (IEEE 802.3az) implementation details - all confirmed for the DP83822IFRHBR variant.
Technical Context
The DP83822IFRHBR implements a fully integrated PHY layer with automatic media detection across 10BASE-Te, 100BASE-TX, and 100BASE-FX modes, using differential TD_P/TD_M and RD_P/RD_M interfaces. Its internal clock recovery and start-of-frame detection support IEEE 1588 timestamping accuracy.
It features configurable MII/RMII/RGMII interface timing with integrated termination, programmable energy-saving modes (EEE, WoL, sleep), and hardware-assisted diagnostic tools including cable length estimation and built-in self-test (BIST). The device uses a single 32-pin VQFN package with dedicated RBIAS bias resistor connection and strappable GPIO/LED pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 10/100Mbps - supports full-duplex operation on twisted-pair or fiber via 100BASE-FX mode. |
| Operating Temperature | –40°C to +85°C - qualified for extended industrial ambient conditions (DP83822IF grade). |
| Power Consumption | <220mW at 3.3V AVD - enables thermally constrained designs without active cooling. |
| ESD Immunity | ±8kV contact discharge (IEC 61000-4-2) - eliminates need for external TVS on MDI lines in most cases. |
| MAC Interface | RGMII/RMII/MII - flexible host integration with programmable termination impedance per interface mode. |
| EMI Compliance | CISPR 22 Class B conducted & radiated emissions - meets industrial EMC requirements without shielding add-ons. |
| Diagnostic Features | Cable diagnostics + BIST + loopback - reduces field failure root-cause time by enabling in-system link health verification. |
Pinout & Package
DP83822IFRHBR is housed in a 32-pin, 5.00mm × 5.00mm VQFN (RHB) package with exposed thermal pad. Pin functions are validated per TI SNLS505H Rev. H datasheet, Section 5.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TD_P / TD_M | Differential Transmit Output | MDI output pair supporting 10/100BASE-TX or 100BASE-FX; auto-configured or forced mode selectable. |
| RD_P / RD_M | Differential Receive Input | MDI input pair accepting 10/100BASE-TX or 100BASE-FX signals; includes signal detect capability in FX mode. |
| RBIAS | Bias Resistor Connection | Requires 4.87kΩ ±1% resistor to GND - sets internal current reference for analog circuitry calibration. |
| TX_CLK / RX_CLK | MII Clock Interface | 25MHz (100Mbps) or 2.5MHz (10Mbps) reference clocks; direction and function depend on selected MAC interface mode. |
| MDIO / MDC | Serial Management Interface | IEEE 802.3-compliant MDIO bus (25MHz max) for register configuration, status readback, and PHY address selection. |
| INT / PWDN_N | Interrupt / Power-Down Control | Configurable dual-function pin: default power-down enable; reprogrammable as open-drain interrupt output for link/event notification. |
| LED_0 / LED_1 | Link/Activity/Speed Indication | Two user-configurable LED outputs supporting LINK, ACT, SPEED, or GPIO functions via register control. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Robust ESD/EFT Protection | ±8kV IEC 61000-4-2 contact discharge and Class A 4kV IEC 61000-4-4 EFT tolerance - sustains repeated surges in factory automation settings. |
| Flexible I/O Voltage Support | 1.8V/2.5V/3.3V VDDIO options - enables direct interfacing with diverse host MCUs without level shifters. |
| Energy Efficient Ethernet (EEE) | IEEE 802.3az-compliant low-power idle mode - reduces dynamic power by >50% during packet gaps in sustained traffic. |
| Wake-on-LAN (WoL) | Hardware-accelerated magic packet detection - allows system-level power-down while retaining network responsiveness. |
| Start-of-Frame Detect | Hardware timestamp trigger for IEEE 1588 PTP - enables sub-microsecond synchronization accuracy in time-critical motion control loops. |
| Auto-MDIX in Forced Modes | Automatic polarity correction even when autonegotiation is disabled - simplifies cabling in deterministic industrial networks. |
Applications
| Motor Drives | Factory Automation |
|---|---|
Use Scenario: Real-time command and feedback exchange between PLC and servo drives over unshielded twisted-pair cabling in high-noise motor cabinets. IC Role / Device Role / Timing Role: Physical layer transceiver handling 100BASE-TX signaling with rapid link-down detection (<10ms) to trigger safe torque-off on communication loss. Use Value: Enables deterministic Profinet IRT cycle times under 1ms while surviving EFT bursts from nearby VFD switching transients. |
Use Scenario: Distributed I/O node connectivity in robotic cells where space-constrained controllers require compact, thermally efficient Ethernet PHYs. IC Role / Device Role / Timing Role: Low-power 10/100Mbps PHY interfacing via RGMII to ARM-based controller SoC, supporting both standard and time-sensitive networking stacks. Use Value: Delivers <220mW power draw at 3.3V and –40°C to +85°C operation - eliminates derating concerns in sealed enclosures near welding stations. |
| Grid Infrastructure | Building Automation |
Use Scenario: Substation RTU communication over long-reach 100BASE-FX fiber links exposed to lightning-induced surges and wide temperature swings. IC Role / Device Role / Timing Role: Fiber-capable PHY providing 100BASE-FX transmit/receive with integrated signal detect and optical fault reporting via MDIO registers. Use Value: Supports 100BASE-FX with ±8kV ESD-rated MDI pins and 1.0Vpk-pk differential swing - ensures link integrity after surge events without external protection diodes. |
Use Scenario: HVAC controller networking across multi-floor commercial buildings using legacy CAT5 cabling with variable quality and length. IC Role / Device Role / Timing Role: PHY with built-in cable diagnostics (open/short detection, length estimation) and auto-crossover in forced mode for plug-and-play deployment. Use Value: Reduces commissioning time by 70% through on-chip cable testing - identifies faulty drops before BACnet stack initialization. |
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 |
|---|---|---|---|
| DP83822IRHBR | Same pinout and feature set, but rated for –40°C to +85°C with no 100BASE-FX support. | Suitable for cost-sensitive non-fiber industrial applications where extended temperature range is not required. | Select DP83822IRHBR only if 100BASE-FX is unused and lower BOM cost is prioritized over future fiber upgrade path. |
| LAN8720AI-CP | 3.3V-only I/O, no RGMII support, lacks 100BASE-FX mode, lower ESD rating (±6kV HBM), no integrated cable diagnostics. | Targeted at consumer-grade or light-industrial applications with basic MII/RMII needs and relaxed EMC requirements. | Choose LAN8720AI-CP only for non-critical, short-reach, low-noise environments where diagnostic and robustness features are unnecessary. |
Compared with DP83822IFRHBR, DP83822IRHBR removes 100BASE-FX capability but retains identical packaging and thermal performance, while LAN8720AI-CP sacrifices industrial robustness, diagnostics, and interface flexibility to reduce cost - making DP83822IFRHBR the sole choice for fiber-ready, ESD-hardened, real-time industrial Ethernet nodes.
Availability
DP83822IFRHBR 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 harsh EMI environments.
Supply support for DP83822IFRHBR 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 leader specializing in analog, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.
The DP83822IFRHBR belongs to TI's industrial Ethernet PHY product line, engineered specifically for deterministic, robust, low-power wired connectivity in noise-prone factory and infrastructure applications - not general-purpose networking.
FAQ
What is the operating temperature range of the DP83822IFRHBR?
The DP83822IFRHBR is rated for an industrial operating ambient temperature range of –40°C to +85°C. This specification is explicitly defined for the "IF" grade variant in TI's SNLS505H datasheet, Table 4 (Device Comparison Table), and applies to all electrical and timing parameters within that range. The DP83822IFRHBR does not support the extended 125°C range offered by the "HF" or "H" variants.
Does the DP83822IFRHBR support 100BASE-FX fiber optic interface?
Yes, the DP83822IFRHBR supports 100BASE-FX operation. Per TI's official device comparison table (Section 4 of SNLS505H), the "IF" suffix indicates inclusion of 100BASE-FX functionality. The RD_P/RD_M and TD_P/TD_M pins are configured for fiber mode, and the device provides signal detect capability on LED_1/GPIO1 in this mode - confirmed in Table 5-1 pin descriptions and Section 7.3 feature documentation.
What MAC interfaces does the DP83822IFRHBR support?
The DP83822IFRHBR supports three standardized MAC interfaces: RGMII, RMII, and MII. Each interface is implemented with dedicated pin assignments (e.g., TX_CLK, RX_DV, MDIO), and termination impedance is programmable per interface mode. The selection is determined by hardware strap pins and register configuration - detailed in Sections 5 and 7.3 of the SNLS505H datasheet.
How does the DP83822IFRHBR implement Energy Efficient Ethernet (EEE)?
The DP83822IFRHBR implements IEEE 802.3az-compliant Energy Efficient Ethernet via hardware-accelerated low-power idle (LPI) mode entry/exit. When enabled, it detects idle periods in the data stream and transitions the PHY into a reduced-power state while maintaining link synchronization. LPI signaling is handled autonomously without MAC intervention, reducing dynamic power consumption by over 50% during packet gaps - verified in Section 7.3.5 of SNLS505H.
What diagnostic capabilities does the DP83822IFRHBR provide?
The DP83822IFRHBR includes on-chip cable diagnostics (open/short detection and approximate length estimation), built-in self-test (BIST), digital loopback modes (PHY, MII, and analog), and rapid link-down detection (<10ms). These features are accessible via MDIO register reads and do not require external test equipment - enabling automated field validation and predictive maintenance in deployed systems, as documented in Sections 7.3.9 and 9.2 of SNLS505H.
DP83822IFRHBR 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
DP83822IFRHBR FAQ
1.How can I place an order for DP83822IFRHBR through Aetrix?
Please submit a Request for Quotation (RFQ) for DP83822IFRHBR 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 DP83822IFRHBR reliable?
The price and inventory of DP83822IFRHBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DP83822IFRHBR is usually 5 days.
3.What payment methods are accepted for DP83822IFRHBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DP83822IFRHBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DP83822IFRHBR?
DP83822IFRHBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DP83822IFRHBR 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 DP83822IFRHBR?
For technical support, including DP83822IFRHBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DP83822IFRHBR requirements.
6.How does Aetrix verify that DP83822IFRHBR is sourced from the original manufacturer or authorized distributors?
All DP83822IFRHBR 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 DP83822IFRHBR meets industry standards.
7.What is the process for return or replacement of DP83822IFRHBR?
All DP83822IFRHBR units undergo pre-shipment inspection (PSI). If there is an issue with DP83822IFRHBR, 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 DP83822IFRHBR part is unused and in its original packaging.
Return procedure for DP83822IFRHBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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