LT3669EUFD#TRPBF - IO-Link Transceiver | Analog Devices
料号： LT3669EUFD#TRPBF ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.38 | $5.38 |
| 10 | $5.38 | $53.80 |
| 100 | $5.38 | $538.00 |
| 500 | $5.38 | $2,690.00 |
| 1,000 | $5.38 | $5,380.00 |
LT3669EUFD#TRPBF 概述
An IO-Link transceiver is an industrial interface IC that connects a controller to sensors or actuators using IO-Link communication. In the broader hierarchy, it belongs to interface ICs and industrial fieldbus connectivity. The LT3669 family combines physical-layer signaling, wake-up detection, programmable power-on reset timing, and local power regulation so a compact sensor or actuator can be powered and communicated with in one assembly.
According to the Analog Devices product page, LT3669 and LT3669-2 are recommended for new designs. The manufacturer datasheet also identifies wake-up detect and a programmable power-on reset timer. The transceiver's transmitter current limit and slew rate are externally adjustable, allowing the interface behavior to be matched to the connected industrial load and cable environment. The verified data does not provide numerical values for those adjustments.
The integrated step-down regulator supplies a lower-voltage rail efficiently, while the LDO supports a cleaner local supply. Combining both functions with the IO-Link transceiver can simplify PCB area in industrial sensors, proximity devices, and actuator modules. The trade-off is a more specialized IC whose external component values, current limits, timing, and thermal performance must be selected together rather than as separate power-stage designs.
The LT3669 family is suitable for factory automation, industrial sensing, actuator control, and fieldbus-connected modules where IO-Link power and communication share one interface device. The 28-QFN package requires careful PCB layout and adequate thermal design, particularly when the internal switching regulator operates at higher load. The manufacturer product page lists LT3669 and LT3669-2 as recommended for new designs, while the exact LT3669EUFD#TRPBF lifecycle status should be confirmed against current authorized-channel inventory.
This page combines verified distributor listings, manufacturer positioning, package information, and practical design guidance for engineers evaluating the LT3669EUFD#TRPBF. Numeric electrical limits, pricing tiers, and detailed pin functions not present in the supplied source data are intentionally marked as data needed rather than inferred.
直接替换替代料： LT3669EUFD#TRPBF ——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： LT3669EUFD#TRPBF （相同外形与封装尺寸） ——差异在于 Package, Operating Temperature Range, Transceiver Configuration, Product Type, Wake-Up Detect.
快速对比工具——选择替代料号进行并排对比：
LT3669EUFD#PBF
✅ 直接替换✓ 有现货
$9.2 / 个
查看数据手册 →LT3669EUFD-2#PBF
✅ 直接替换✓ 有现货
$5.38 / 个
查看数据手册 →LT3669EUFD-2#TRPBF
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →LT3669IUFD-2#TRPBF
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →LT3669HUFD-2#TRPBF
✅ 直接替换✓ 有现货
$5.38 / 个
查看数据手册 →LT3669EUFD#TRPBF 规格参数
| Product Type | IO-Link transceiver with integrated step-down regulator and LDO |
| Manufacturer | Analog Devices |
| Transceiver Configuration | 1/1 transceiver |
| 封装 | 28-QFN (4 mm x 5 mm) |
| Package Type | 28-pin QFN with exposed pad |
| 安装类型 | Surface mount |
| Ordering Code | TRPBF tape-and-reel packaging |
| Integrated Power Conversion | Step-down switching regulator and low-dropout regulator |
| Wake-Up Detect | Supported |
| Power-On Reset | Programmable power-on reset timer |
LT3669EUFD#TRPBF 28-pin qfn with exposed pad 引脚配置指南
LT3669EUFD#TRPBF（28-pin qfn with exposed pad 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： LT3669EUFD#TRPBF.
请参阅 数据手册 以查看完整引脚配置。
典型应用
LT3669EUFD#TRPBF 适用于 6 应用s: Industrial Proximity Sensors, Factory Automation Actuators, IO-Link Valve and Valve-Control Modules, Industrial Limit and Photoelectric Sensors, Embedded Industrial Sensor Hubs, Industrial Condition-Monitoring Modules.
Industrial Proximity Sensors
The LT3669EUFD#TRPBF fits industrial proximity and inductive sensor modules that need IO-Link communication together with local power conditioning. The integrated step-down switching regulator and LDO reduce the number of separate power-conversion blocks that must be placed near the sensor electronics, helping conserve PCB area in compact field devices. Its 28-QFN 4 mm x 5 mm package supports dense industrial sensor assemblies, while the externally adjustable transmitter current limit and slew rate allow interface behavior to be tuned to the connected device. Numeric current, voltage, and timing limits should be selected from the manufacturer datasheet rather than inferred.
推荐
Factory Automation Actuators
The LT3669EUFD#TRPBF is suitable for IO-Link actuator modules used in factory automation, where a local transceiver and regulated power supply are needed close to the actuator interface. Combining the step-down regulator and LDO with the IO-Link transceiver can simplify power routing and reduce the number of discrete supply stages. The part's 28-QFN package requires careful exposed-pad thermal design and compact high-current layout. Before selecting external inductors, capacitors, and current-limit settings, verify the exact actuator voltage, load current, and protection requirements against the LT3669 datasheet.
推荐
IO-Link Valve and Valve-Control Modules
The LT3669EUFD#TRPBF can support compact IO-Link valve-control modules by combining communication and power regulation in one industrial interface IC. This is useful when the valve electronics need a regulated local rail while sharing the IO-Link physical connection. Wake-up detect and a programmable power-on reset timer provide additional system-management functions identified in the manufacturer description, helping the module behave predictably during power transitions. Because actuator loads can create substantial transient demand, validate regulator thermal performance, output-current capability, and external component selection with the official datasheet.
推荐
Industrial Limit and Photoelectric Sensors
The LT3669EUFD#TRPBF is appropriate for limit switches, photoelectric sensors, and other field devices that need IO-Link connectivity and regulated auxiliary power. Its integrated power-management functions can reduce the board footprint compared with a separate transceiver, switcher, and LDO. The 28-QFN package is useful for compact sensor housings, but the exposed pad must be connected to a thermal copper path and the switching layout must follow the manufacturer's recommendations. The supplied sources do not specify sensor-side timing or current values, so final component selection requires the manufacturer datasheet.
推荐
Embedded Industrial Sensor Hubs
The LT3669EUFD#TRPBF can be used in a multi-sensor field hub when IO-Link power and communication must be integrated close to the sensing circuitry. The step-down regulator and LDO provide distinct power-conversion resources within one package, while wake-up detection and programmable power-on reset support controlled startup. This combination may simplify the power tree in a compact sensor assembly, but designers must account for switching-node layout, exposed-pad heat spreading, and the interaction between sensor loads and the programmed transmitter current limit. Verify all values in the Analog Devices LT3669 datasheet.
推荐
Industrial Condition-Monitoring Modules
The LT3669EUFD#TRPBF fits condition-monitoring modules that need a local IO-Link interface and regulated power in a small industrial enclosure. Integrated power conversion can reduce board-level complexity compared with separate communication and regulator components, making the device useful for distributed monitoring installations. The 28-QFN package is compact but demands a deliberate PCB land pattern and exposed-pad thermal connection. The verified material does not provide long-term reliability, temperature, or supply-noise specifications, so use the current manufacturer datasheet and qualification records before deployment in critical monitoring systems.
推荐
推荐产品汇总
工程参考数据： LT3669EUFD#TRPBF ——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 | LT3669EUFD#PBF | LT3669EUFD-2#PBF | LT3669EUFD-2#TRPBF | LT3669IUFD-2#TRPBF |
|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 28-QFN (4 mm x 5 mm) | QFN-28 | QFN-28 | QFN-28 | QFN-28 |
关键差异点
- Integrated power conversion with IO-Link communication （对比 Generic standalone IO-Link transceiver)
- Compact package for field-device designs （对比 Separate IO-Link transceiver and discrete regulator approach)
- System-control functions （对比 LT3669EUFD#PBF)
- Same-family ordering options （对比 LT3669EUFD-2#TRPBF)
设计说明
Place the step-down regulator input, output, switching components, and the IO-Link interface paths according to the Analog Devices LT3669 recommended layout. Keep the switching node compact and route it away from sensitive signal returns. The 28-QFN exposed pad should be connected to a continuous thermal and ground-copper structure, with vias placed to spread heat without disturbing sensitive traces. Exact component placement and via counts must follow the manufacturer datasheet because those values were not included in the supplied data.
Treat the LT3669EUFD#TRPBF as a combined power and interface design problem. Select the inductor, input capacitors, regulator output capacitors, LDO capacitors, and programmable current-limit components from the manufacturer datasheet using the actual sensor or actuator voltage and load. Do not estimate stability from the package alone; the integrated switching regulator and LDO impose different ripple, startup, and load-transient constraints. Confirm the external power-tree limits against the verified device documentation.
The QFN package exposes its underside pad to the PCB, so thermal performance depends strongly on copper area, via distribution, enclosure temperature, and switching-regulator load. For an initial thermal check, use estimated regulator dissipation from the actual input voltage, output voltage, and load current, then compare the resulting junction-temperature estimate with the manufacturer’s device limits. No numeric thermal resistance or maximum junction temperature was supplied here, so those values require verification in the current datasheet.
Do not substitute a same-package LT3669 ordering code solely because it has a similar name. The supplied cross-reference results include LT3669, LT3669-2, LT3669EUFD#PBF, LT3669EUFD-2#PBF, LT3669IUFD-2#TRPBF, and LT3669HUFD-2#TRPBF, but do not establish identical pinout or electrical behavior for every code. Verify the ordering table, pin names, power ratings, timing, and package dimensions before approving a replacement.
合规信息
The supplied verified web data does not state compliance status for the LT3669EUFD#TRPBF. Obtain the current Analog Devices product declaration for the exact ordering code before making a regulatory claim.
