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ISO3086TDW
Texas Instruments
IC TXRX/ISO FULL 2/2 16SOIC
1135 Pcs New Original In Stock
2/2 Transceiver, Isolated Full RS422, RS485 16-SOIC
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5.0 / 5.0
- (278 Ratings)
ISO3086TDW
Product Overview
1357198
DiGi Electronics Part Number
ISO3086TDW-DGManufacturer
Texas Instruments
ISO3086TDW
Description
IC TXRX/ISO FULL 2/2 16SOICInventory
1135 Pcs New Original In Stock
2/2 Transceiver, Isolated Full RS422, RS485 16-SOIC
Quantity
Minimum 1
Minimum 1
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ISO3086TDW Technical Specifications
Category
Interface, Drivers, Receivers, Transceivers
Packaging
Tube
Series
-
Product Status
Last Time Buy
Type
Transceiver, Isolated
Protocol
RS422, RS485
Number of Drivers/Receivers
2/2
Duplex
Full
Receiver Hysteresis
30 mV
Data Rate
20Mbps
Voltage - Supply
3.15V ~ 5.5V, 4.5V ~ 5.5V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-SOIC (0.295", 7.50mm Width)
Supplier Device Package
16-SOIC
Base Product Number
ISO3086
Datasheet & Documents
HTML Datasheet
ISO3086TDW-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
2 (1 Year)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
296-29335-5
-296-29335-5-DG
-ISO3086TDW-NDR
-296-29335-5
Standard Package
40
Alternative Parts
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Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
I love how they combine affordability with a strong environmental ethos.
de desembre 02, 2025
I am constantly impressed by DiGi Electronics’ vast inventory, which helps us meet tight deadlines effortlessly.
de desembre 02, 2025
DiGi Electronics consistently ships my orders within 24 hours, ensuring I never face delays in my project schedules.
de desembre 02, 2025
I appreciate their dedication to ensuring customer satisfaction at every step.
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Frequently Asked Questions (FAQ)
What are the key design risks when replacing the MAX14949EWE+T with the ISO3086TDW in an existing RS485 isolated transceiver circuit?
When substituting the MAX14949EWE+T with the ISO3086TDW, carefully verify compatibility in timing and isolation behavior. The ISO3086TDW has a maximum data rate of 20Mbps, which matches high-speed needs, but check propagation delay and skew differences that could affect timing margins in high-noise or long-cable applications. Additionally, confirm power supply configurations—ISO3086TDW uses dual supplies (3.15V–5.5V and 4.5V–5.5V)—which may require adjustments to your isolated power architecture compared to the MAX14949. Always validate ground loop isolation and common-mode transient immunity (CMTI) performance, as TI’s digital isolation technology in the ISO3086TDW typically exceeds 25kV/μs, which can improve reliability in motor drives or industrial PLCs.
How does the ISO3086TDW handle ground potential differences in industrial networks with long cable runs?
The ISO3086TDW provides galvanic isolation up to 2500V RMS, making it ideal for handling ground potential differences in industrial RS422/RS485 networks with long cable runs. Its high common-mode transient immunity (CMTI) of ≥100kV/μs prevents data errors caused by fast transients in noisy environments like factory automation or power systems. Designers should ensure that isolated power supplies for the VISO side are low-noise and properly decoupled to maintain signal integrity and avoid ground bounce, especially when interfacing with microcontrollers or ADCs referencing different earth potentials.
What are the implications of the ISO3086TDW being in Last Time Buy status for long-term product design-in?
With the ISO3086TDW listed as Last Time Buy, long-term production designs face supply chain risks. Engineers should immediately check TI’s PDN (Product Discontinuance Notification) for final order dates and plan for obsolescence mitigation. Consider locking in lifetime buys or evaluating pin-compatible alternatives such as the ISO3086DW (same specs, different package) or newer isolated transceivers in TI’s portfolio. Also, assess redesign lead time and qualification effort if transitioning to a non-pin-compatible option like the ISO1042 or other enhanced isolation solutions to avoid project delays down the line.
Can the ISO3086TDW reliably operate at the edge of its voltage supply range, especially with battery-powered systems?
Yes, the ISO3086TDW supports a wide supply range (3.15V–5.5V on primary, 4.5V–5.5V on isolated side), but caution is needed at lower voltages. At 3.15V, signal drive strength and fail-safe receiver thresholds may be marginally met under heavy load or temperature extremes. In battery-powered systems where voltage droops below 3.3V, ensure the isolated side has a stable 5V rail—do not assume buck-boost efficiency will maintain regulation. Use low-ESR ceramic decoupling (1μF and 100nF) close to the device pins to prevent oscillation. Monitoring bus signal integrity with eye diagrams during battery drop tests is recommended to validate reliable communication.
What layout and thermal considerations are critical when designing the ISO3086TDW into a high-density PCB with multiple isolated channels?
For high-density PCBs using the ISO3086TDW, maintain creepage and clearance distances (≥0.25mm) across the isolation barrier to meet safety standards. Avoid routing high-speed digital traces under the 16-SOIC package to prevent coupling into sensitive isolation regions. Use a solid ground plane on each side, separated across the isolation barrier, and route return paths carefully to minimize loop area. Thermal performance is generally stable up to 85°C ambient, but in tightly packed layouts, monitor power dissipation from bus loading—each driver can sink up to 60mA. Consider thermal vias under the exposed pad if available, and validate temperature rise with IR imaging under worst-case bus conditions to ensure long-term reliability.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
ISO3086TDW CAD Models
Texas Instruments ISO3086TDW PCB symbols & footprints
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