TPS23730RMTR - 802.3bt PoE PD Controller 60W | Texas Instruments
料号： TPS23730RMTR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.1 | $2.10 |
| 10 | $1.98 | $19.80 |
| 100 | $1.78 | $178.00 |
| 500 | $1.62 | $810.00 |
| 1,000 | $1.45 | $1,450.00 |
| 3,000 | $1.35 | $4,050.00 |
TPS23730RMTR 概述
A PoE PD controller is the interface IC that negotiates power with a Power Sourcing Equipment (PSE) port, performs detection, classification, and inrush current limiting, then hands off to a DC-DC converter that produces the equipment's usable rails. Within the power-management hierarchy it spans both the PoE interface layer and the switching-regulator control layer, replacing the two-chip discrete solutions used in earlier 802.3at designs.
Key differentiating features include complete single-chip 802.3bt Type 3 compliance for Class 1-6 power levels, an allocated power indicator output, support for parallel or split power operation, and a current-mode controller optimized for both flyback and active-clamp forward (ACF) topologies. The integrated 100-V hotswap MOSFET with 0.3-ohm on-resistance removes an external pass device, reducing BOM count and conduction losses at multi-amp input currents.
On the technical side, the DC-DC controller section supports high-efficiency isolated and non-isolated conversions from the 48-V PoE rail, with current-mode control providing inherent cycle-by-cycle current limiting and simple loop compensation. EA Gen 2 (PoE 2) readiness means the TPS23730 passes certification requirements for next-generation high-power PoE deployments, supporting up to 60 W at the PD for Type 3 Class 6 operation.
Typical applications include 5G small-cell radios and network cameras that draw 40-60 W, wireless access points, LED lighting drivers powered from Ethernet, and industrial IP intercom or display terminals where a single Cat5e cable must carry both data and power. The 60-W envelope with allocated power indicator outputs makes it particularly suitable for two-pair Type 3 PD designs.
Design-wise, validate the transformer or forward magnetics for the full Class 6 power level and provide adequate PCB copper under the RMT exposed pad for hotswap MOSFET conduction and switching losses; TI's TPS23730EVM-093 reference design is the recommended starting point for new layouts.
This page synthesizes distributor pricing, lifecycle data, and application guidance not found in a single manufacturer datasheet.
TPS23730RMTR 最大额定值与电气特性
| 功能 | PoE PD controller with integrated DC-DC controller |
| Standard Compliance | IEEE 802.3bt Type 3 (PoE 2, EA Gen 2 logo-ready), 802.3at |
| Class Support | Class 1-6 |
| Maximum Power Level | 60 W |
| Integrated Hotswap MOSFET | 100 V, 0.3 ohm (typ) |
| DC-DC Topologies | Flyback, active clamp forward (ACF) |
| Control Scheme | Current-mode |
| 通道数 | 1 |
| 工作温度 | -40C to +125C |
| 封装 | VQFN (RMT), 45 pins, 7x5 mm |
| 安装类型 | Surface Mount |
| Allocated Power Indicator | Yes |
| Parallel / Split Power Operation | Supported |
| Packaging | Tape & Reel (R) |
| Reference Design | TPS23730EVM-093 (Type 3 51W PD) |
TPS23730RMTR vqfn (rmt), 45 pins, 7x5 mm 引脚配置指南
TPS23730RMTR（vqfn (rmt), 45 pins, 7x5 mm 封装）的引脚配置。 该功率器件具有栅极、漏极和源极端子。对于无极性封装，请参阅制造商数据手册以了解确切的引脚 1 方向和封装尺寸细节。常见应用包括电源设计、电机驱动和负载开关。
暂无详细引脚数据： TPS23730RMTR.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TPS23730RMTR 适用于 6 应用s: Wireless Access Points, IP Surveillance Cameras, 5G Small-Cell Radios, PoE LED Lighting, Industrial Network Terminals, VoIP Conferencing Systems.
Wireless Access Points
High-performance 802.11ax/be access points typically draw 30-60 W for multi-radio operation, matching the TPS23730's 802.3bt Type 3 Class 1-6 envelope. Its integrated 100-V, 0.3-ohm hotswap MOSFET minimizes conduction loss across multi-amp input currents, while the current-mode controller drives a flyback or active-clamp forward stage to generate the radio, CPU, and PHY rails from the 48-V PoE input. Using one Cat5e cable for both data and up to 60 W eliminates local AC adapters and simplifies ceiling installation. Designers should size the transformer for Class 6 power and follow the TPS23730EVM-093 layout for thermal margin.
推荐
IP Surveillance Cameras
PTZ and multi-sensor security cameras with heaters, IR illuminators, and motorized optics routinely need 25-60 W, beyond 802.3at limits. The TPS23730's 802.3bt Type 3 support delivers up to 60 W over the Ethernet cable, while allocated power indicator outputs let the camera system report negotiated power to the PSE. Its single-chip integration reduces the front-end BOM in cost-sensitive volume camera platforms, and backward compatibility with 802.3at lets the same PCB ship across lower-power camera SKUs. The current-mode flyback controller provides cycle-by-cycle current limiting for robust field operation in outdoor enclosures.
推荐
5G Small-Cell Radios
Outdoor 5G small cells and active antennas require tens of watts delivered over a single Ethernet drop, exactly the 802.3bt Type 3 market the TPS23730 addresses. The integrated hotswap MOSFET's 100-V rating provides margin against cable-induced surges and transients in outdoor cabling, and the active-clamp-forward-capable controller improves efficiency at 60 W, easing convection-cooled sealed-enclosure thermal design. EA Gen 2 logo-ready status streamlines operator certification for PoE 2 deployments. The -40C to +125C operating range covers harsh cabinet and pole-mount environments without additional derating analysis.
推荐
PoE LED Lighting
Connected LED luminaires and tunable-white lighting systems powered by PoE benefit from the TPS23730's ability to negotiate Class 1-6 allocations and convert the 48-V rail directly to LED-string voltages via its flyback controller. The 60-W envelope covers high-output downlights and area fixtures from a single Cat5e run, while allocated power indicator outputs support smart-building energy management. Its 0.3-ohm hotswap MOSFET keeps standby conduction losses low, important for always-on lighting. The -40C floor suits unconditioned ceiling plenums and outdoor fixtures.
推荐
Industrial Network Terminals
Industrial intercoms, HMI panels, barcode readers, and access-control terminals deployed across factory floors rely on single-cable PoE for power and data. The TPS23730's -40C to +125C range and robust 100-V hotswap stage tolerate the electrical environment of long industrial cable runs, while parallel or split power operation supports dual-port designs for redundant power in critical terminals. Its integrated current-mode controller produces logic and display rails from the PoE input with flyback simplicity. One-chip integration shortens qualification for mixed Type 3/Type 4 switch infrastructures in brownfield plants.
推荐
VoIP Conferencing Systems
Conference phones and video bar endpoints with touch displays, cameras, and multi-channel audio draw 20-60 W, making 802.3bt Type 3 PD capability essential. The TPS23730 negotiates the appropriate Class 1-6 allocation and its DC-DC controller efficiently generates the display, audio, and processor rails from the single Ethernet cable, eliminating wall adapters on conference tables. Backward compatibility with 802.3at lets the same hardware deploy on legacy PoE+ switches at reduced feature levels. Allocated power indicator outputs allow endpoint firmware to report real power draw to enterprise PoE management systems.
推荐
推荐产品汇总
工程参考数据： TPS23730RMTR ——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 | TPS2378 |
|---|---|---|
| Package | VQFN-45 (RMT) 7x5 mm | Different package (non-drop-in) |
| Brand | Texas Instruments | Texas Instruments |
| PoE Standard | 802.3bt Type 3 (also 802.3at) | 802.3af/at PD interface |
| Class Support | Class 1-6 | Class 0-4 |
| Max Power | 60 W | 25.5 W (802.3at) |
| Integrated Hotswap MOSFET | Yes, 100 V / 0.3 ohm | No, external MOSFET required |
| Integrated DC-DC Controller | Yes, current-mode flyback/ACF | No, separate controller needed |
| Drop-in Pin Compatible | N/A (target part) | No - requires PCB rework |
关键差异点
- Single-chip 802.3bt Type 3 solution （对比 TPS2378)
- Higher power class support （对比 TPS2378)
- Future-proof topology support （对比 TPS2378)
设计说明
The integrated 100-V, 0.3-ohm hotswap MOSFET dissipates I^2 x R losses plus switching energy during inrush. Estimated: at a full Type 3 Class 6 input current of roughly 1.2 A, conduction loss is about 0.43 W (1.2 A squared times 0.3 ohm); the exposed pad of the 45-pin VQFN (RMT) must be soldered to a copper pour with thermal via stitching to keep junction temperature inside the -40C to +125C rating. Estimated values are from datasheet-typical parameters; confirm against the actual thermal impedance section of the manufacturer datasheet.
Follow the TPS23730EVM-093 reference layout for the PoE front end: keep the detection/classification network and the hotswap MOSFET power path with short, wide traces to the transformer primary, and place the current-sense network of the DC-DC controller close to the IC. Use TI's EVM as the baseline because it has been validated for Type 3 51-W operation, and its diode bridge to transformer primary loop is already optimized for low ringing and conducted EMI compliance under 802.3bt.
Do not attempt to reuse an 802.3at PD front-end layout: the TPS23730's 802.3bt Type 3 operation uses two-pair Class 6 allocations and the higher inrush and operating currents will exceed 802.3at-rated diode bridges and transformer designs. Also ensure magnetics and output capacitors are sized for the full allocated power level even if initial deployment is at Class 4, since PSE port upgrades to Type 3 should not require a PD respin. Verify the exact electrical characteristics in the current TI datasheet revision before release.
合规信息
Compliance details were not present in the provided web data; consult the TI product page quality section for RoHS/REACH status of TPS23730RMTR.
