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ISO7341FCQDWQ1
Texas Instruments
DGTL ISO 3000VRMS 4CH 16SOIC
3137 Pcs New Original In Stock
General Purpose Digital Isolator 3000Vrms 4 Channel 25Mbps 25kV/µs CMTI 16-SOIC (0.295", 7.50mm Width)
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ISO7341FCQDWQ1
Product Overview
1294192
DiGi Electronics Part Number
ISO7341FCQDWQ1-DGManufacturer
Texas Instruments
ISO7341FCQDWQ1
Description
DGTL ISO 3000VRMS 4CH 16SOICInventory
3137 Pcs New Original In Stock
General Purpose Digital Isolator 3000Vrms 4 Channel 25Mbps 25kV/µs CMTI 16-SOIC (0.295", 7.50mm Width)
Quantity
Minimum 1
Minimum 1
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ISO7341FCQDWQ1 Technical Specifications
Category
Digital Isolators
Packaging
Tube
Series
-
Product Status
Active
Technology
Capacitive Coupling
Type
General Purpose
Isolated Power
No
Number of Channels
4
Inputs - Side 1/Side 2
3/1
Channel Type
Unidirectional
Voltage - Isolation
3000Vrms
Common Mode Transient Immunity (Min)
25kV/µs
Data Rate
25Mbps
Propagation Delay tpLH / tpHL (Max)
58ns, 58ns
Pulse Width Distortion (Max)
4.1ns
Rise / Fall Time (Typ)
2.1ns, 1.7ns
Voltage - Supply
3V ~ 5.5V
Grade
Automotive
Qualification
AEC-Q100
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
16-SOIC (0.295", 7.50mm Width)
Supplier Device Package
16-SOIC
Base Product Number
ISO7341
Datasheet & Documents
Manufacturer Product Page
ISO7341FCQDWQ1 Specifications
Design Resources
Digital Isolator Design Guide
HTML Datasheet
ISO7341FCQDWQ1-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
TEXTISISO7341FCQDWQ1
2156-ISO7341FCQDWQ1
296-43685
Standard Package
40
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
포장재가 친환경적이어서 별 다섯 개 주고 싶어요.
de desembre 02, 2025
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de desembre 02, 2025
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de desembre 02, 2025
Very pleased with the fast delivery and protective packaging.
de desembre 02, 2025
The logistics service was exceptional; my order arrived exactly on time.
de desembre 02, 2025
Quick, reliable shipping combined with excellent after-sales support makes them a top choice.
de desembre 02, 2025
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de desembre 02, 2025
I appreciate their transparent pricing, making shopping stress-free.
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Frequently Asked Questions (FAQ)
When integrating the Texas Instruments ISO7341FCQDWQ1 into a noisy automotive environment, what specific concerns arise regarding its 25kV/µs CMTI and how can I mitigate potential data corruption issues in my design?
The ISO7341FCQDWQ1's 25kV/µs Common Mode Transient Immunity (CMTI) is excellent for automotive applications, but significant ground shifts or high-frequency noise can still pose challenges. To mitigate data corruption, ensure proper PCB layout with wide, short traces for the isolated signals and separate ground planes for the high-voltage and low-voltage sides. Consider adding small decoupling capacitors (e.g., 0.1µF and 100pF ceramic) close to the VDD and GND pins of the ISO7341FCQDWQ1 on both sides to suppress high-frequency noise. Even with strong CMTI, minimizing noise coupling through careful component placement and shielding is always a good design practice.
I'm replacing an older optocoupler-based isolation solution in an automotive sensor interface with the ISO7341FCQDWQ1. What are the key design risks to consider beyond simple voltage and channel count matching, especially concerning signal integrity and power supply flexibility?
When replacing an optocoupler with the ISO7341FCQDWQ1, the primary risks go beyond matching voltage and channel counts. Optocouplers often have slower propagation delays and higher pulse width distortion, which the ISO7341FCQDWQ1 significantly improves. However, you must ensure your driving circuitry is compatible with the ISO7341FCQDWQ1's 25Mbps data rate and its specific input/output voltage requirements (3V to 5.5V). Also, consider the ISO7341FCQDWQ1's lack of integrated isolated power; you'll need to provide independent supplies for each side, which can add complexity but offers greater flexibility. Careful attention to the ISO7341FCQDWQ1's 58ns max propagation delay and 4.1ns max pulse width distortion is crucial for maintaining signal integrity, especially in time-sensitive automotive communication protocols.
For a critical automotive ECU application requiring robust isolation, what are the potential reliability trade-offs if I were to consider a competitor's isolator like the Si8641BB-B-IS instead of the Texas Instruments ISO7341FCQDWQ1, given both are AEC-Q100 qualified?
While both the ISO7341FCQDWQ1 and the Si8641BB-B-IS are AEC-Q100 qualified, reliability trade-offs can exist. The ISO7341FCQDWQ1 boasts a superior Common Mode Transient Immunity (CMTI) of 25kV/µs, which is a significant advantage in high-noise automotive environments compared to some other isolators. Additionally, the ISO7341FCQDWQ1's capacitive isolation technology generally offers better long-term reliability and lower degradation over time than older galvanic isolation methods found in some competitor parts, especially under harsh temperature cycling. Always review the detailed datasheets for specific failure mechanisms and operational limits under your exact application conditions.
My design requires 3 isolated input channels and 1 isolated output channel for a specific automotive control system. If I select the ISO7341FCQDWQ1, which has 3 inputs and 1 output per chip, what are the risks of uneven channel loading or mismatch in propagation delays impacting my system's timing if I don't use all 4 channels on separate logic signals?
The ISO7341FCQDWQ1 is designed with 3 unidirectional inputs and 1 unidirectional output per side, totaling 4 channels (3 isolated inputs and 1 isolated output when viewed from a system perspective). If your application only utilizes a subset of these channels, or if you have significantly different signal types driving them, there's a potential for slight variations in propagation delay and pulse width distortion between channels, although these are typically very well-controlled within the datasheet specifications (e.g., 58ns max for propagation delay and 4.1ns max for pulse width distortion). For critical timing scenarios, it's best practice to test with your specific load conditions. If precise channel-to-channel timing is paramount, consider dedicating separate, identical logic signals to each channel of the ISO7341FCQDWQ1, even if some are unused, or explore devices with more flexible channel configurations if available.
I'm designing a power supply control circuit for an automotive application and need to isolate the low-voltage microcontroller from the higher-voltage switching side. The ISO7341FCQDWQ1 offers 3000Vrms isolation, but my system might experience transient voltage spikes exceeding this during fault conditions. What are the key considerations for protecting the ISO7341FCQDWQ1 and ensuring its longevity beyond its specified isolation rating?
While the ISO7341FCQDWQ1 is rated for 3000Vrms isolation and possesses excellent 25kV/µs CMTI, relying solely on it to withstand repeated transient voltage spikes significantly beyond its rating is risky. For enhanced protection and longevity in such scenarios, implement external protection circuitry on the high-voltage side before the isolator. This could include transient voltage suppressors (TVS diodes) or Metal Oxide Varistors (MOVs) appropriately rated for your expected fault conditions. Additionally, ensure robust grounding and proper layout to minimize the impact of these transients on the entire system. The ISO7341FCQDWQ1's strong CMTI helps with fast transients, but sustained overvoltage conditions require dedicated external protection.
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ISO7341FCQDWQ1 CAD Models
Texas Instruments ISO7341FCQDWQ1 PCB symbols & footprints
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