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Texas Instruments ISO7741FEDWRQ1
- Part No.:
- ISO7741FEDWRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ISO7741FEDWRQ1.pdf
- Description:
- DGTL ISO 5000VRMS 4CH 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,971
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Product details
Overview
ISO7741FEDWRQ1 from Texas Instruments is an AEC-Q100 Grade 0 reinforced quad-channel digital isolator with 5000VRMS isolation rating, 100Mbps data rate, and ±100kV/μs typical CMTI. It features three forward and one reverse channel configuration, default-low output logic (F-suffix), and operates across 2.25V–5.5V dual supplies for use in high-temperature automotive powertrain systems.
For engineers reviewing the ISO7741FEDWRQ1 datasheet, ISO7741FEDWRQ1 pinout, ISO7741FEDWRQ1 application, or ISO7741FEDWRQ1 equivalent, this page delivers verified technical context, exact pin functions, automotive-grade safety certifications, and validated alternative options for BMS, traction inverter, and on-board charger designs.
Technical Context
The ISO7741FEDWRQ1 implements dual capacitive SiO₂ insulation barriers per channel to achieve reinforced isolation compliant with DIN EN IEC 60747-17 (VDE 0884-17) and UL 1577. Its architecture supports independent input/output supply domains (VCCI/VCCO) and includes two enable pins (EN1, EN2) for side-specific high-impedance control.
It delivers grade-0 operation from –40°C to +150°C ambient, with 1500VRMS working voltage and 12.8kV surge capability. The device integrates level translation between 2.25V and 5.5V logic domains and exhibits 10.7ns typical propagation delay at 5V supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | 100 Mbps - supports high-speed CAN FD, SPI, and PWM signal isolation in EV power electronics |
| Isolation rating | 5000 VRMS - enables reinforced insulation per UL 1577 and VDE 0884-17 for functional safety-critical subsystems |
| CMTI | ±100 kV/μs typical - ensures robust noise immunity in high-dV/dt environments like motor drives and inverters |
| Propagation delay | 10.7 ns typical (5V) - enables precise timing alignment in closed-loop motor control and gate driver interfaces |
| Supply range | 2.25 V to 5.5 V per side - allows direct interfacing with 3.3V microcontrollers and 5V analog front-ends without level shifters |
| Ambient temperature | –40°C to +150°C - qualified for under-hood and battery-pack locations in hybrid/electric vehicles |
| Default output state | Low (F-suffix) - provides fail-safe low-level assertion during input-side power loss in safety-monitoring circuits |
Pinout & Package
ISO7741FEDWRQ1 is housed in a wide-SOIC (DW-16) package measuring 10.30 mm × 7.50 mm body size, with 16 leads and reinforced creepage/clearance (>8 mm) for automotive high-voltage isolation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA, INB, INC, IND | Input channels A–D | Digital logic inputs referenced to VCCI/GNDI; support 2.25–5.5V CMOS/LVCMOS levels |
| OUTA, OUTB, OUTC, OUTD | Output channels A–D | Isolated outputs referenced to VCCO/GNDO; F-suffix ensures default-low behavior on power loss |
| EN1, EN2 | Output enable controls | Enable/disable outputs on side-1 (pins 1–8) or side-2 (pins 9–16); low = high-impedance output state |
| VCC1, VCC2 | Power supplies | VCC1 powers input-side circuitry (INA–IND, EN1); VCC2 powers output-side (OUTA–OUTD, EN2) |
| GND1, GND2 | Ground references | Galvanically isolated grounds: GND1 for input domain, GND2 for output domain |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced isolation barrier | Double capacitive SiO₂ dielectric with >30-year lifetime at 1500VRMS working voltage |
| Automotive qualification | AEC-Q100 Grade 0 certified for –40°C to +150°C ambient operation in safety-critical systems |
| EMC robustness | ±8 kV IEC 61000-4-2 contact ESD across barrier; system-level surge, EFT, and low-emission compliance |
| Channel configuration | Three forward (INA→OUTA, INB→OUTB, INC→OUTC) and one reverse (IND←OUTD) channel mapping |
| Power efficiency | 1.5 mA per channel typical at 1 Mbps (5V), enabling low-heat dissipation in densely packed BMS modules |
Applications
| Battery Management System (BMS) | Traction Inverter Control |
|---|---|
Use Scenario: Isolating cell voltage monitoring ADC signals and pack-level communication buses in high-voltage EV battery packs. IC Role / Device Role / Timing Role: Quad-channel isolator providing galvanic separation between 400–800V battery domain and 3.3V MCU domain while preserving timing integrity of sampled data. Use Value: Enables safe, accurate real-time cell balancing and fault detection without ground loop interference or common-mode noise corruption. |
Use Scenario: Transmitting PWM gate drive signals and feedback signals (current/voltage sensing) between inverter control unit and IGBT/SiC half-bridge modules. IC Role / Device Role / Timing Role: Forward-channel isolator delivering <11 ns propagation delay and <5 ns pulse skew to maintain precise dead-time control in motor phase legs. Use Value: Prevents shoot-through failures and improves inverter efficiency by ensuring synchronized, noise-immune switching transitions. |
| On-Board Charger (OBC) | DC/DC Converter Supervision |
Use Scenario: Isolating digital control signals between primary-side AC/DC controller and secondary-side 12V/48V DC/DC stage in bidirectional OBC units. IC Role / Device Role / Timing Role: Dual-supply isolator supporting 5V-to-3.3V level translation and independent enable control for isolated feedback loops and protection signaling. Use Value: Maintains regulatory isolation barriers while enabling fast transient response and fault reporting across power domains. |
Use Scenario: Monitoring output voltage/current and thermal status in high-efficiency 48V–12V DC/DC converters used in 48V mild-hybrid architectures. IC Role / Device Role / Timing Role: Reverse-channel isolator (IND←OUTD) conveying fault alerts from isolated secondary side back to primary-side safety controller. Use Value: Provides fail-safe shutdown signaling with guaranteed low-default output during secondary-side power loss or overtemperature events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-channel reinforced digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8641ED-B-IS | 4-channel, 100 Mbps, 5000VRMS, but only 125°C max ambient; no Grade 0 qualification | Limited to under-dash or cabin applications; unsuitable for under-hood traction inverter or BMS locations | Select when Grade 0 is not required and cost sensitivity outweighs extended temperature margin |
| ADUM2401ARWZ-RL | 4-channel, 25 Mbps, 5000VRMS, 105°C max ambient; no automotive qualification or CMTI >85 kV/μs | Applicable only in non-safety-critical, lower-speed industrial or consumer systems | Choose only for legacy designs where speed and temperature requirements are relaxed |
Compared with SI8641ED-B-IS and ADUM2401ARWZ-RL, ISO7741FEDWRQ1 uniquely combines AEC-Q100 Grade 0, 100 Mbps, and ±100 kV/μs CMTI-making it the sole option qualified for high-speed, high-temperature, safety-critical EV powertrain isolation.
Availability
ISO7741FEDWRQ1 is available at Aetrix Electronics and suitable for battery management systems, traction inverters, and on-board chargers requiring stable component supply across automotive production lifecycles.
Supply support for ISO7741FEDWRQ1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in automotive-grade isolation, power management, and signal chain solutions.
The ISO7741FEDWRQ1 belongs to TI's ISO77xx-Q1 reinforced digital isolator family, engineered specifically for functional safety-compliant isolation in electric vehicle powertrain and chassis control systems.
FAQ
What does the 'F' suffix in ISO7741FEDWRQ1 indicate?
The 'F' suffix denotes default-low output behavior: when input-side power (VCCI) is lost or falls below UVLO threshold, all output channels (OUTA–OUTD) transition to logic low within 0.3 μs. This fail-safe state supports safety-critical monitoring in battery disconnect or fault-handling circuits. ISO7741FEDWRQ1 maintains this behavior across its full –40°C to +150°C operating range.
Does ISO7741FEDWRQ1 support bidirectional data flow across all four channels?
No. ISO7741FEDWRQ1 has a fixed channel directionality: three forward channels (INA→OUTA, INB→OUTB, INC→OUTC) and one reverse channel (IND←OUTD). The reverse channel allows feedback signals-such as fault flags or status bits-from the isolated output domain back to the input controller. Direction cannot be reconfigured in hardware or firmware.
Which safety standards does ISO7741FEDWRQ1 comply with for automotive use?
ISO7741FEDWRQ1 is certified to DIN EN IEC 60747-17 (VDE 0884-17), UL 1577, IEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1. It achieves reinforced insulation with VIOWM = 1500 VRMS and VIOSM = 12.8 kVPK, meeting ASIL-B/C system-level requirements when integrated with proper safety documentation and diagnostic coverage.
Can ISO7741FEDWRQ1 operate with mismatched input and output supply voltages?
Yes. ISO7741FEDWRQ1 supports independent VCCI (2.25–5.5 V) and VCCO (2.25–5.5 V) supplies, enabling level translation-for example, 3.3V MCU interfacing to 5V analog sensors or gate drivers. Input thresholds scale with VCCI; output drive strength scales with VCCO. No external level shifters are needed for cross-voltage-domain signal transfer.
How does the enable pin functionality work on ISO7741FEDWRQ1?
EN1 controls outputs OUTA–OUTC (side-1); EN2 controls OUTD (side-2). When pulled low, respective outputs enter high-impedance state-useful for bus sharing or power reduction during idle. EN pins tolerate voltages up to VCCI + 0.5 V and require no pull-up/pull-down resistors when left open (default enabled). Propagation delay from EN assert to output transition is ≤20 ns at 5V.
ISO7741FEDWRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 5000Vrms
- Common Mode Transient Immunity (Min):
- 85kV/µs
- Data Rate:
- 100Mbps
- Propagation Delay tpLH / tpHL (Max):
- 16.5ns, 16.5ns
- Pulse Width Distortion (Max):
- 4.9ns
- Rise / Fall Time (Typ):
- 2.4ns, 2.4ns
- Voltage - Supply:
- 2.25V ~ 5.5V
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Operating Temperature:
- -40°C ~ 150°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ISO7741FEDWRQ1 FAQ
1.How can I place an order for ISO7741FEDWRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ISO7741FEDWRQ1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ISO7741FEDWRQ1 reliable?
The price and inventory of ISO7741FEDWRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISO7741FEDWRQ1 is usually 5 days.
3.What payment methods are accepted for ISO7741FEDWRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISO7741FEDWRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISO7741FEDWRQ1?
ISO7741FEDWRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISO7741FEDWRQ1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ISO7741FEDWRQ1?
For technical support, including ISO7741FEDWRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISO7741FEDWRQ1 requirements.
6.How does Aetrix verify that ISO7741FEDWRQ1 is sourced from the original manufacturer or authorized distributors?
All ISO7741FEDWRQ1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ISO7741FEDWRQ1 meets industry standards.
7.What is the process for return or replacement of ISO7741FEDWRQ1?
All ISO7741FEDWRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with ISO7741FEDWRQ1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ISO7741FEDWRQ1 part is unused and in its original packaging.
Return procedure for ISO7741FEDWRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISO7741FEDWRQ1 Tags
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ISO1212DBQR
Texas Instruments
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ISO6721BDR
Texas Instruments
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SI8710AC-B-ISR
Skyworks Solutions Inc.
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ISO7720FDR
Texas Instruments
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ISO7721DR
Texas Instruments
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ISO7721FDR
Texas Instruments
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SI8710CC-B-ISR
Skyworks Solutions Inc.
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ISO6741FQDWRQ1
Texas Instruments
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ISO7721DWVR
Texas Instruments
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ISO7762FDBQR
Texas Instruments
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ISO7741DWR
Texas Instruments
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ISO7741FDWR
Texas Instruments
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