LT3669IUFD-2#TRPBF - IO-Link Transceiver | Analog Devices
N.º da peça: LT3669IUFD-2#TRPBF ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $5.38 | $5,38 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
LT3669IUFD-2#TRPBF Visão geral
An IO-Link transceiver is an industrial sensor-interface device that connects compatible sensors, actuators, and master ports over an IO-Link communication link. In the signal path, the integrated receiver detects and conditions incoming IO-Link data, while the transmitter drives the output. The device also provides wake-up detect functionality and a programmable power-on reset timer, reducing the need for separate interface and supervisory circuitry.
The most distinctive feature is integration of an IO-Link transceiver with local power conversion. The step-down regulator supplies a lower-voltage rail for sensor or actuator electronics, while the LDO provides a low-dropout output from that rail. In the LT3669IUFD-2#TRPBF, external rectification is required, and the supported switching-regulator load is up to 300 mA. The transmitter current limit and slew rate are externally adjustable, allowing engineers to tune output behavior for a particular line, load, or electromagnetic-compatibility requirement.
Operation from -40°C to +125°C suits industrial automation, factory sensors, actuator nodes, and equipment operating across wide temperature ranges. A 40 V maximum supply also provides headroom above conventional 24 V industrial buses, although system transients still require suitable protection. The 28-QFN exposed-pad package is intended for surface-mount assembly and benefits from a properly designed ground and thermal layout.
Design attention should focus on the required external catch diode, regulator compensation or output capacitors specified by the manufacturer, exposed-pad soldering, and IO-Link line protection. Because the -2 and non--2 LT3669 versions differ in their integrated catch-diode arrangement and supported regulator load, verify the exact schematic before substitution. The product page identifies the LT3669-2 as recommended for new designs.
This page combines verified manufacturer and distributor information with practical selection guidance, function-level application analysis, and explicit data gaps for unverified electrical details. Engineers should consult the complete manufacturer datasheet before setting operating voltages, timing, compensation, current limits, or protection networks.
Alternativas drop-in para LT3669IUFD-2#TRPBF — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com LT3669IUFD-2#TRPBF (mesmo formato e footprint) — diferindo em Package, Wake-Up Detect, Transceiver Configuration, Power-On Reset, Product Type.
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LT3669IUFD-2#PBF
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Ver ficha técnica →LT3669IUFD-2#TRPBF Especificações
| Product Type | Industrial IO-Link transceiver with integrated step-down regulator and LDO |
| Number of Drivers | 1 driver |
| Number of Receivers | 1 receiver |
| Supply Voltage Range | 7.5 V to 40 V |
| LT3669-2 Step-Down Load Current | Up to 300 mA |
| LT3669 Integrated-Catch-Diode Load Current | Up to 100 mA |
| Wake-Up Detect | Integrated |
| Power-On Reset | Programmable timer |
| Transmitter Current Limit | Externally adjustable |
| Transmitter Slew Rate | Externally adjustable |
| Faixa de temperatura de operação | -40°C to +125°C |
| Encapsulamento | 28-pin WFQFN exposed-pad package, 4 mm × 5 mm |
| Tipo de montagem | Surface mount |
| Protocol | IO-Link |
| New-Design Recommendation | LT3669-2 recommended for new designs |
| Manufacturer 1ku List Price Starting From | $5.38 |
Guia de Configuração de Pinos do LT3669IUFD-2#TRPBF 28-pin wfqfn exposed-pad package, 4 mm × 5 mm
Configuração de pinos para LT3669IUFD-2#TRPBF (pacote 28-pin wfqfn exposed-pad package, 4 mm × 5 mm). A numeração dos pinos, funções e diagramas de conexão estão definidos no datasheet do fabricante. Consulte-o para o footprint exato e diretrizes de soldagem.
Nenhum dado detalhado de pinagem disponível para LT3669IUFD-2#TRPBF.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
LT3669IUFD-2#TRPBF é adequado para 7 aplicaçãos: Industrial IO-Link Sensor Nodes, Factory Actuator Interfaces, Industrial Power-Sensing Sensors, Process-Control Equipment, Automation-System Sensor Buses, Embedded Industrial Control Modules, Remote Equipment Wake-Up Interface.
Industrial IO-Link Sensor Nodes
The LT3669IUFD-2#TRPBF fits factory sensor nodes because it combines a 1/1 IO-Link transceiver with local step-down and LDO functions. The verified 7.5 V to 40 V supply range accommodates industrial-bus environments, while operation from -40°C to +125°C supports equipment exposed to temperature variation. Place the transceiver at the sensor interface and use its wake-up detection to reduce external supervisory circuitry. The step-down section can provide up to 300 mA, but the -2 version requires an external catch diode, so the PCB must follow the manufacturer reference design. Its integrated architecture reduces the number of interface and power blocks that otherwise require separate routing and validation.
Recomendado
Factory Actuator Interfaces
The LT3669IUFD-2#TRPBF suits compatible industrial actuators that need an IO-Link communication path and local auxiliary power. Its transmitter current limit and slew rate are externally adjustable, allowing output behavior to be tuned rather than accepted as fixed. The step-down regulator supports up to 300 mA in the LT3669-2 version, giving it more documented capacity than the related LT3669 configuration at 100 mA. The 40 V maximum supply provides useful industrial headroom, although protection against field transients remains necessary. Wake-up detection and the programmable power-on reset timer help simplify controller state management after power restoration or cable reconnection.
Recomendado
Industrial Power-Sensing Sensors
The LT3669IUFD-2#TRPBF can support a local IO-Link sensor interface where the remote device needs both communication and regulated auxiliary power. The integrated LDO supplies a lower-dropout rail, while the switching regulator handles a broader conversion stage and is documented for up to 300 mA in the -2 version. That integration is useful when a sensor head has limited board area and must minimize external power components. Designers should still calculate worst-case dissipation and verify startup behavior. The operating range of -40°C to +125°C supports harsh industrial environments, while adjustable transmitter current and slew controls help match the physical IO-Link output to the connected load and line conditions.
Recomendado
Process-Control Equipment
The LT3669IUFD-2#TRPBF is appropriate for process-control equipment requiring an industrial sensor connection plus compact local regulation. Its one-transmitter, one-receiver configuration is suitable for the IO-Link role described by the manufacturer, and wake-up detection can reduce controller effort when a connected device becomes active. The -40°C to +125°C range covers a broad range of industrial environments, while the 7.5 V to 40 V operating input supports higher-voltage site power after suitable conditioning. Using one IC for communication and local power reduces board partitioning, but designers must preserve the LT3669-2 external catch-diode requirement and validate timing against the attached equipment.
Recomendado
Automation-System Sensor Buses
The LT3669IUFD-2#TRPBF can serve an IO-Link node connected to a larger automation sensor bus when each endpoint also requires regulated auxiliary power. Its integrated switching regulator and LDO reduce the separate supply-chain complexity commonly found in compact sensor modules. The documented 300 mA capability applies to the LT3669-2 switching-regulator configuration and requires an external catch diode; the original LT3669 instead integrates the diode for up to 100 mA. The interface IC's adjustable transmitter current limit and slew rate are useful for tuning line behavior. Exact timing, capacitor values, protection components, and thermal limits must come from the complete manufacturer datasheet rather than the supplied excerpts.
Recomendado
Embedded Industrial Control Modules
The LT3669IUFD-2#TRPBF fits compact control modules where an IO-Link interface and regulated local power must coexist near a controller. The integrated receiver, transmitter, LDO, and step-down regulator can simplify the analog front end of an embedded module, while wake-up detection and programmable power-on reset assist deterministic startup behavior. Its -40°C to +125°C rating is useful for industrial equipment, and its 4 mm by 5 mm 28-QFN package supports dense surface-mount layouts. However, exposed-pad layout, external catch-diole placement, and regulator stability are critical. The verified excerpts do not provide the full pin table or compensation network, so prototype work should follow the official Analog Devices reference design.
Recomendado
Remote Equipment Wake-Up Interface
The LT3669IUFD-2#TRPBF is useful where an IO-Link device must wake or coordinate with powered remote equipment. Integrated wake-up detection avoids implementing a separate receive path for wake signals, and the programmable power-on reset timer provides a controlled startup reference for the local system. The device's 7.5 V to 40 V input range supports common industrial environments, while its 300 mA LT3669-2 regulator capability is suitable for moderate auxiliary loads. Designers should verify the actual IO-Link timing budget and ensure that the chosen regulator load remains within 300 mA. The -2 option also requires an external catch diode, unlike the related integrated-diode LT3669 configuration.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para LT3669IUFD-2#TRPBF — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | LT3669IUFD-2#PBF | LT3669IUFD#TRPBF | LT3669IUFD#PBF |
|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 28-QFN (4 mm × 5 mm) | 28-QFN (4 mm × 5 mm) | 28-QFN (4 mm × 5 mm) | 28-QFN (4 mm × 5 mm) |
| IO-Link Transceiver | 1 transmitter / 1 receiver | 1 transmitter / 1 receiver | 1 transmitter / 1 receiver | 1 transmitter / 1 receiver |
| Step-Down Load Current | Up to 300 mA | Up to 300 mA | Up to 100 mA | Up to 100 mA |
| Catch-Diode Arrangement | External catch diode required | External catch diode required | Catch diode integrated | Catch diode integrated |
| Supply Configuration | Tape & Reel | Tube | Tape & Reel | Tube |
| Wake-Up Detect | Integrated | Integrated | Integrated | Integrated |
| Power-On Reset | Programmable timer | Programmable timer | Programmable timer | Programmable timer |
Principais diferenciais
- Higher documented switching-regulator load capability (vs LT3669IUFD#TRPBF)
- Recommended-for-new-designs -2 option (vs LT3669IUFD#PBF)
- Choice of assembly presentation without changing the -2 configuration (vs LT3669IUFD-2#PBF)
Notas de projeto
The LT3669-2 requires an external catch diode, while the related LT3669 integrates the diode and is documented for up to 100 mA. Keep the LT3669-2 switched load at or below 300 mA and preserve the manufacturer-recommended diode placement and loop geometry. Do not substitute the non--2 device into a board designed around an external diode without reviewing the entire regulator schematic and pin-level functions.
Treat the exposed pad as a thermal and electrical connection, not only a solderable land. Follow the manufacturer's land pattern and thermal-via recommendation, keep the return path short to the ground plane, and avoid placing high-temperature copper features where they disrupt adjacent IO-Link routing. Calculate worst-case regulator loss from actual input, output, and load conditions because the supplied excerpts do not provide enough thermal-resistance data for a numeric junction estimate.
The transmitter current limit and slew rate are externally adjustable, so changing their components can alter rise time, line stress, and EMI. Validate those settings with the intended cable and load. The integrated wake-up detector and programmable power-on reset also require correct external timing components; removing or changing them may alter startup behavior even though the IC footprint remains unchanged.
Separate the IO-Link communication path from sensitive analog and power-conversion nodes where practical. Keep switching-regulator high-current loops compact, place the catch diode and regulator components according to the official reference layout, and use uninterrupted ground beneath the exposed pad. Industrial cables can introduce transients, so use connector protection and maintain the stated 7.5 V to 40 V supply boundary under all operating conditions.
Informações de conformidade
The supplied official and distributor excerpts do not state compliance claims for this exact MPN. The -40°C to +125°C operating-temperature rating is verified but does not establish AEC-Q100 qualification.
