DP83822IRHBT - 10/100 Ethernet PHY | Texas Instruments
料号： DP83822IRHBT ✓ 量产中DP83822IRHBT 概述
An Ethernet PHY, or physical-layer transceiver, is the component that converts logical data into signals suitable for an Ethernet cable and converts received signals back into digital data for the host. The DP83822 belongs to the Ethernet interface IC hierarchy, where it provides the physical-layer function below a network controller, industrial control system, or embedded processor. Its 10/100-Mbps support makes it relevant for legacy Fast Ethernet networks and industrial equipment that require a reliable wired connection without a higher-speed transceiver.
The principal verified features are 10/100-Mbps Ethernet operation, 16-kV ESD robustness, a 32-pin VQFN (RHB) package, and an operating temperature range of -40 °C to 85 °C. The low-power positioning makes the device suitable for embedded and industrial systems where the Ethernet interface must coexist with constrained power budgets. The package provides a compact surface-mount implementation, while the specified ESD capability supports protection for exposed copper connections in industrial or communications environments.
The manufacturer describes DP83822IRHBT as a robust, low-power Ethernet PHY transceiver. The part number identifies the RHB package variant and the T suffix indicates the reel or packaging configuration used by distributors. Its system role requires a compatible host interface, suitable magnetic-interface components or network connection arrangement, correct power sequencing, and PCB layout that follows the manufacturer’s reference design. The available web results confirm the device family, package, speed class, ESD rating, temperature range, and sourcing information.
Typical applications include industrial Ethernet controllers, factory automation equipment, embedded network modules, access-control systems, building automation, communications equipment, and test or measurement products that require a wired 10/100-Mbps connection. In these systems, the PHY can reduce the complexity of implementing the physical Ethernet layer while allowing the host processor to handle packet processing and higher-level protocols.
Designers should review the manufacturer datasheet for the complete electrical characteristics, register map, pin configuration, magnetic-interface recommendations, and layout guidance. The available verified data does not publish the complete pinout or detailed timing, power, and environmental parameters, so those values are marked as data needed rather than inferred. This page combines verified product identity, sourcing information, drop-in alternatives, comparison details, and practical application guidance for engineers evaluating the DP83822IRHBT.
直接替换替代料： DP83822IRHBT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： DP83822IRHBT （相同外形与封装尺寸） ——差异在于 Package, Cable Diagnostics, MAC Interface, Product Type, Supply Voltage.
DP83822IRHBR
✅ 直接替换联系询价
查看数据手册 →DP83822IFRHBT
✅ 直接替换联系询价
查看数据手册 →DP83822IFRHBR
✅ 直接替换联系询价
查看数据手册 →DP83822HFRHBR
✅ 直接替换联系询价
查看数据手册 →TLK105LRHB
✅ 直接替换📋 参考替代料（不在目录中）
DP83822IRHBT 规格参数
| Product Type | Ethernet PHY transceiver |
| Ethernet Speed | 10/100 Mbps |
| ESD Protection | 16 kV |
| 封装 | 32-pin VQFN (RHB) |
| Package Dimensions | 5 x 5 mm |
| 工作温度范围 | -40 °C to 85 °C |
| 安装类型 | Surface mount |
| Power Class | Low-power |
| Maximum Data Rate | 100 Mbps |
DP83822IRHBT 5 x 5 mm 引脚配置指南
DP83822IRHBT（5 x 5 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： DP83822IRHBT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DP83822IRHBT 适用于 6 应用s: Industrial Automation Controllers, Building Automation Equipment, Embedded Network Modules, Communications Equipment, Access-Control and Security Systems, Test and Measurement Products.
Industrial Automation Controllers
The DP83822IRHBT fits industrial automation controllers that need a wired 10/100-Mbps Ethernet connection for supervisory control, configuration access, and plant-floor monitoring. Its verified -40 °C to 85 °C operating range and 16-kV ESD protection address environmental requirements commonly encountered near motors, relays, and switching equipment. The device is used as the Ethernet physical layer beneath the controller’s network stack, while the host processor manages protocols and application data. Compared with a higher-speed PHY, the 10/100-Mbps class can simplify deployment on existing Fast Ethernet infrastructure. Designers should follow the manufacturer’s layout and network-interface recommendations, verify the exact RHB pinout, and validate the complete power and timing specification before release.
推荐
Building Automation Equipment
The DP83822IRHBT is suitable for building automation controllers, room controllers, access-control panels, and HVAC monitoring equipment that must report status over Ethernet. The 10/100-Mbps rate is appropriate for supervisory traffic, configuration downloads, and web or industrial protocol communication rather than high-bandwidth media. Its low-power positioning supports compact embedded equipment, while the -40 °C to 85 °C range supports deployment in controlled but thermally variable building environments. The PHY can connect the host processor to a network transformer or other manufacturer-recommended connection arrangement. System integrators should still check cable reach, isolation, grounding, reset behavior, and the exact electrical limits in the official Texas Instruments datasheet before approving a deployment.
推荐
Embedded Network Modules
The DP83822IRHBT can provide the physical Ethernet layer for embedded Linux, microcontroller, and industrial processor modules that require a compact 10/100-Mbps network port. It is particularly useful when the module already handles TCP/IP or a fieldbus gateway above the physical layer and needs a standardized wired connection. The compact 5 x 5 mm, 32-pin VQFN package helps preserve board area, while the low-power design positioning supports systems with limited thermal and power budgets. The implementation must account for the host interface, PHY address and clocking configuration, magnetics or coupling network, and reset sequencing described by Texas Instruments. Because those detailed electrical values are not included in the supplied data, use the manufacturer datasheet for the complete design-in information.
推荐
Communications Equipment
The DP83822IRHBT is applicable to communications equipment requiring a reliable 10/100-Mbps Ethernet management or data port. Potential systems include protocol gateways, serial-to-Ethernet converters, remote telemetry units, and communications concentrators. The PHY’s 10/100-Mbps support allows equipment to operate on conventional Fast Ethernet networks, and its 16-kV ESD rating is relevant where copper cabling connects to external equipment. The transceiver itself handles only the physical layer, so the host processor must support the required interface and network stack. To achieve reliable operation, verify the specified RHB pinout, supply sequencing, clocking, line or magnetics interface, and layout geometry against the Texas Instruments datasheet. Avoid inferring performance or compliance details not explicitly published.
推荐
Access-Control and Security Systems
The DP83822IRHBT fits access-control readers, door controllers, and security monitoring nodes that use Ethernet for credential traffic, configuration, and event reporting. The 10/100-Mbps rate matches typical management and control traffic, while the compact VQFN package supports space-constrained edge devices. The specified -40 °C to 85 °C range allows use across indoor and industrial-adjacent environments, and the 16-kV ESD capability supports exposed network connectivity. Security-system integrators should pay particular attention to isolation strategy, grounding, cable protection, firmware interoperability, and reset behavior. The DP83822IRHBT does not itself provide protocol security; those functions remain in the host controller. Complete electrical and timing validation must be based on the official manufacturer documentation.
推荐
Test and Measurement Products
The DP83822IRHBT can serve as the network interface in test instruments, laboratory controllers, and monitoring equipment that exchanges commands and results over a 10/100-Mbps Ethernet link. The device’s low-power positioning and compact 5 x 5 mm VQFN footprint are useful in portable or rack-mounted systems where board space is limited. Its -40 °C to 85 °C range supports industrial test environments, while Fast Ethernet is sufficient for supervisory protocols and moderate data transfer. The PHY should be paired with a host capable of the required interface, and the board must implement the manufacturer-recommended connection network and layout. Verify supply voltage, current, timing, isolation, and thermal details from the datasheet because these values are not present in the supplied search data.
推荐
推荐产品汇总
工程参考数据： DP83822IRHBT ——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 | DP83822IRHBR | DP83822IFRHBT | DP83822IFRHBR | DP83822HFRHBR | TLK105LRHB |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
关键差异点
- Verified industrial-temperature operation （对比 DP83822HFRHBR)
- 16-kV ESD robustness （对比 TLK105LRHB)
- Compact 5 x 5 mm RHB package （对比 DP83822IRHBR)
设计说明
Use the manufacturer’s DP83822I reference layout and complete RHB pinout before routing the board. The verified data confirms a 32-pin VQFN (RHB), but it does not include the pin table, exposed-pad requirements, or recommended trace geometry. Keep the PHY-to-host interface short, provide the specified decoupling arrangement, and preserve the recommended network connection layout. Do not infer pin assignments or exposed-pad details from a generic VQFN template.
Treat the Ethernet interface as a high-speed differential signal path even though the target rate is 10/100 Mbps. Follow the manufacturer’s recommendations for the magnetics or coupling network, return path, grounding, and isolation. The 16-kV ESD rating is a verified device feature, but it does not replace correct board-level protection, cable routing, surge design, or the recommended network interface components.
Do not substitute a similarly named DP83822 orderable code solely because a distributor lists it as similar. The supplied results identify DP83822IRHBR, DP83822IFRHBT, DP83822IFRHBR, and DP83822HFRHBR as alternatives, but the suffix meanings and full parameter sets require confirmation. Compare the official ordering table, pinout, electrical characteristics, and package drawing. The TI engineering response specifically supports DP83822I as a drop-in replacement for TLK105LRHB, subject to its application-note recommendations.
The supplied verified data identifies the DP83822IRHBT as low-power but does not publish supply voltage, quiescent current, transmit current, or receive current. Before schematic release, obtain those values from the official datasheet and calculate the power budget across the host interface, PHY, network components, and regulators. Confirm startup sequencing and reset requirements as well. Guessing voltage rails or current limits can produce an invalid design even when the Ethernet data rate is correct.
合规信息
The supplied verified web data identifies the device, package, speed, ESD rating, and temperature range but does not provide explicit compliance statements. Compliance fields are therefore recorded as unknown rather than inferred.
