LT3669IUFD-2#PBF - 40V IO-Link Transceiver | Analog Devices
N.º da peça: LT3669IUFD-2#PBF ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 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 |
LT3669IUFD-2#PBF Visão geral
An IO-Link transceiver is an interface IC that connects sensors and actuators to an industrial point-to-point communication link. It combines physical-layer signaling with device power delivery, allowing one integrated module to handle both command communication and a regulated supply. The IO-Link transceiver category sits below industrial interface ICs, while the integrated switching and linear regulators place this device within broader industrial power-management and sensor-interface systems.
The LT3669-2 variant supports a 300mA regulator load, whereas the LT3669 integrates a catch diode for operation up to 100mA and the LT3669-2 requires an external catch diode. Wake-up detection and a programmable power-on reset timer support robust industrial sensor behavior. Adjustable transmitter current limit and slew rate provide additional control over physical-layer signal behavior and system integration.
The integrated power architecture reduces the number of separate supply components required by an IO-Link sensor module. Its step-down regulator produces a lower sensor-side voltage from the industrial input rail, while the LDO provides a clean regulated output where required. The manufacturer identifies LT3669 and LT3669-2 as being recommended for new designs, making them relevant to current industrial sensing and factory-automation platforms.
Typical uses include proximity sensors, photoelectric sensors, industrial actuator interfaces, factory automation equipment, and IO-Link masters or sensor modules operating from protected industrial supplies. The device is particularly useful when the interface must support communication and regulated sensor power in one compact package.
Designers should follow the datasheet exactly for the external catch diode, inductor, capacitors, current-limit setting, slew-rate setting, and wake-up or reset configuration. The external diode and regulator layout directly affect reliability, efficiency, and emissions, so PCB layout should follow the manufacturer’s recommended application circuit rather than relying on generic regulator guidance.
This page combines verified manufacturer and distributor information, same-package alternatives, interface distinctions, pricing references, and practical engineering guidance. It also separates verified LT3669-2 facts from specifications that still require direct datasheet confirmation.
Alternativas drop-in para LT3669IUFD-2#PBF — 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#PBF (mesmo formato e footprint) — diferindo em Package, Wake-Up Detect, Product Type, Integrated Power Functions, Operating Temperature Range.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
LT3669IUFD-2#TRPBF
✅ Drop-In✓ Em estoque
Consulte o preço
Ver ficha técnica →LT3669IUFD#PBF
✅ Drop-In✓ Em estoque
Consulte o preço
Ver ficha técnica →LT3669IUFD#TRPBF
✅ Drop-In✓ Em estoque
$5.38 / unidade
Ver ficha técnica →LT3669IUFD-2#PBF Especificações
| Product Type | IO-Link transceiver with integrated step-down regulator and LDO |
| Device Family | LT3669 / LT3669-2 |
| Variant | LT3669-2 |
| Operating Voltage Range | 7.5V to 40V |
| Load Current Capability | Up to 300mA |
| Regulador chaveado | Integrated step-down switching regulator |
| Linear Regulator | Integrated low-dropout regulator |
| Catch Diode | External catch diode required for LT3669-2 |
| Wake-Up Detection | Supported |
| Power-On Reset | Programmable timer |
| Transmitter Current Limit | Externally adjustable |
| Transmitter Slew Rate | Externally adjustable |
| Transceiver Configuration | Single IO-Link transmitter/receiver |
| Encapsulamento | 28-QFN (4mm x 5mm) |
| Tipo de montagem | Surface mount |
| New-Design Status | LT3669 and LT3669-2 recommended for new designs |
| Manufacturer List Price | $5.38 starting price for 1,000 units |
Guia de Configuração de Pinos do LT3669IUFD-2#PBF 28-qfn (4mm x 5mm)
Configuração de pinos para LT3669IUFD-2#PBF (pacote 28-qfn (4mm x 5mm)). 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#PBF.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
LT3669IUFD-2#PBF é adequado para 6 aplicaçãos: Industrial Proximity Sensors, Photoelectric Sensor Interfaces, Factory Automation Equipment, Industrial Actuator Interfaces, IO-Link Sensor Modules, Industrial Power and Signal Conditioning.
Industrial Proximity Sensors
The LT3669IUFD-2#PBF fits IO-Link proximity sensors that need communication and regulated power on one compact board. Its 7.5V to 40V input range accepts higher-voltage industrial sensor supplies, while the LT3669-2 regulator section supports loads up to 300mA. The integrated step-down converter, LDO, wake-up detection, and programmable reset reduce the number of separate support blocks. Designers must add the external catch diode required by LT3669-2 and follow the manufacturer’s regulator layout to achieve dependable sensor startup.
Recomendado
Photoelectric Sensor Interfaces
The LT3669IUFD-2#PBF is suitable for photoelectric sensor modules that combine IO-Link signaling with a local regulated supply. The 300mA LT3669-2 capability is useful when the sensor, indicator, and associated electronics draw more than the LT3669’s 100mA limit. The programmable power-on reset can coordinate power sequencing, while wake-up detection helps the module respond after the link or supply changes state. Exact output-voltage, current-limit, and capacitor settings must come from the manufacturer application circuit.
Recomendado
Factory Automation Equipment
Factory automation equipment can use the LT3669IUFD-2#PBF at sensor endpoints where 24V-class industrial power and IO-Link communication must be handled together. The verified 7.5V to 40V operating range provides compatibility with protected industrial rails, while the integrated step-down regulator and LDO organize local power delivery. Wake-up detection and the programmable reset support controlled recovery after power or link events. PCB designers should preserve the manufacturer’s high-current layout guidance and external catch-diode requirement.
Recomendado
Industrial Actuator Interfaces
The LT3669IUFD-2#PBF can support actuator-interface modules that require IO-Link communication and regulated local power in a restricted board area. Its 300mA maximum LT3669-2 load is appropriate when the actuator electronics remain within that verified limit; inductive loads may need additional protection that is not specified in the supplied data. The transceiver’s adjustable transmitter current limit and slew rate give the system designer additional control. Validate line-driver settings and thermal margins against the final cable and actuator load.
Recomendado
IO-Link Sensor Modules
The LT3669IUFD-2#PBF is a natural fit for compact IO-Link sensor modules because it combines the physical-layer transceiver, switching regulator, and LDO in one 28-QFN device. The LT3669-2 supports up to 300mA and requires an external catch diode, simplifying the decision when the sensor load exceeds the standard LT3669’s 100mA capability. Wake-up detection and programmable power-on reset help manage module startup. Use the datasheet’s recommended external components and layout rather than treating the dual-regulator architecture as a generic unregulated transceiver.
Recomendado
Industrial Power and Signal Conditioning
The LT3669IUFD-2#PBF can combine signal conditioning and local power regulation in industrial sensor interfaces. The step-down regulator handles a reduction from the input rail, while the LDO provides a regulated path for compatible loads. Wake-up detection, programmable reset, and adjustable transmitter slew rate support interface control. Because the supplied data does not provide complete regulator efficiency, output-voltage, dropout, or thermal-limit values, those details must be verified from the LT3669/LT3669-2 datasheet before a final design release.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para LT3669IUFD-2#PBF — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | LT3669IUFD-2#TRPBF | LT3669IUFD#PBF | LT3669IUFD#TRPBF |
|---|---|---|---|---|
| Package | QFN-28 (4mm x 5mm) | QFN-28 (4mm x 5mm) | QFN-28 (4mm x 5mm) | QFN-28 (4mm x 5mm) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Product Family | LT3669-2 | LT3669-2 | LT3669 | LT3669 |
| Operating Voltage Range | 7.5V to 40V | 7.5V to 40V family range | 7.5V to 40V family range | 7.5V to 40V family range |
| Regulator Load Current | Up to 300mA | Up to 300mA | Up to 100mA | Up to 100mA |
| Catch Diode | External required | External required | Integrated | Integrated |
| Transmitter Configuration | Single IO-Link transmitter/receiver | Single IO-Link transmitter/receiver | Single IO-Link transmitter/receiver | Single IO-Link transmitter/receiver |
| Integrated Regulators | Step-down switching regulator and LDO | Step-down switching regulator and LDO | Step-down switching regulator and LDO | Step-down switching regulator and LDO |
| Wake-Up Detection | Supported | Supported | Supported | Supported |
| Power-On Reset | Programmable timer | Programmable timer | Programmable timer | Programmable timer |
| Ordering Format | Tube-packed #PBF | Tape-and-reel TRPBF ordering code | Tube-packed #PBF ordering code | Tape-and-reel TRPBF ordering code |
Principais diferenciais
- Higher verified load-current capability than the standard LT3669 (vs LT3669IUFD#PBF)
- External catch-diode architecture supports the higher-current variant (vs LT3669IUFD#PBF)
- Same high-current electrical function in a reel-format ordering code (vs LT3669IUFD-2#PBF)
Notas de projeto
The LT3669-2 supports load currents up to 300mA and requires an external catch diode, whereas LT3669 integrates the diode and is specified to 100mA. Do not substitute the lower-current LT3669 into a board whose sensor load exceeds 100mA. For LT3669-2 layouts, place the catch diode and regulator components according to the manufacturer’s recommended circuit and verify the current limit, inductor, capacitor, and output settings against the actual load.
Treat the integrated step-down regulator, LDO, transceiver, and exposed pad as one carefully coordinated power and signal layout. Keep high-current paths short and wide, place the external catch diode close to the appropriate regulator pins, and provide a low-impedance ground connection. The supplied data does not provide a complete PCB layout or thermal resistance, so engineers must follow the LT3669/LT3669-2 datasheet layout and thermal guidance before fabrication.
The most common design error is treating LT3669 and LT3669-2 as identical despite their different catch-diode arrangements and current limits. Another is relying on generic transceiver layout when wake-up detection, programmable power-on reset, transmitter slew rate, and current-limit settings are externally configurable. Confirm the exact variant, verify all external component values, and test startup, cable faults, and wake-up behavior against the intended industrial environment.
The verified data establishes a 300mA load capability for LT3669-2 but does not provide the regulator efficiency, package thermal resistance, or maximum junction-temperature data needed for a complete thermal calculation. Before production, calculate worst-case dissipation from the selected input and output voltages using actual efficiency data from the datasheet and confirm that the 28-QFN exposed-pad layout has adequate copper area and thermal relief. Do not assume the 300mA rating alone guarantees safe thermal operation.
Informações de conformidade
The supplied verified data does not provide compliance declarations for RoHS, REACH, AEC-Q100, lead-free status, halogen-free status, or conflict minerals. The manufacturer product page and datasheet URL are provided, but no compliance statement was included in the retrieved evidence.
