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Texas Instruments ISOW7841FAQDWEQ1
- Part No.:
- ISOW7841FAQDWEQ1
- Manufacturer:
- Texas Instruments
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ISOW7841FAQDWEQ1.pdf
- Description:
- AUTO RISO DIG. ISOLATOR WITH INT
- Quantity:
- Payment:
- Shipping:
Inventory:518
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Product details
Overview
ISOW7841FAQDWEQ1 from Texas Instruments is an automotive-grade quad-channel reinforced digital isolator with integrated DC-DC converter, delivering 100 Mbps data rate, 5000 VRMS isolation rating, ±100 kV/µs CMTI, and up to 0.65 W isolated output power in a 16-pin SOIC-WB package for battery management systems.
For engineers reviewing the ISOW7841FAQDWEQ1 datasheet, ISOW7841FAQDWEQ1 pinout, ISOW7841FAQDWEQ1 application, or ISOW7841FAQDWEQ1 equivalent, this device supports AEC-Q100 Grade 1 (–40°C to 125°C), functional safety system design, and eliminates external isolated power supplies in space-constrained EV traction inverters and on-board chargers.
Technical Context
The ISOW7841FAQDWEQ1 integrates four independent capacitive signal-isolation channels with double SiO₂ barriers and a transformer-based isolated DC-DC converter using thin-film polymer insulation. It supports bidirectional voltage configuration (3.3 V/5 V input/output combinations) via the SEL pin and features soft-start, thermal shutdown, and overload protection.
Its reinforced isolation barrier achieves 7071 VPK transient voltage per DIN V VDE V 0884-11:2017-01 and meets UL 1577 (5000 VRMS, 1 min), with certified ESD immunity (±8 kV contact per IEC 61000-4-2) and low emissions compliant with CISPR 32 Class B.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 100 Mbps - enables high-speed CAN FD, SPI, and PWM signal isolation in real-time motor control loops |
| Isolation Rating | 5000 VRMS - meets reinforced insulation requirements for automotive high-voltage subsystems per UL 1577 |
| CMTI | ±100 kV/µs - ensures robust noise immunity in noisy traction inverter gate-drive environments |
| Output Power | 0.65 W - powers isolated MCU peripherals, ADCs, or gate drivers without external DC-DC converters |
| Operating Temp | –40°C to 125°C - qualified for AEC-Q100 Grade 1, suitable for under-hood and battery-pack mounting |
| Propagation Delay | 13 ns (typ, 5-V supply) - supports tight-timing feedback paths in closed-loop power conversion |
| Package | 16-pin SOIC-WB (10.30 mm × 7.50 mm) - wide-body layout maintains >8 mm creepage/clearance for reinforced isolation |
Pinout & Package
ISOW7841FAQDWEQ1 uses a 16-pin wide-body SOIC (DWE) package with 10.30 mm × 7.50 mm body size and reinforced creepage/clearance (>8 mm) for automotive high-voltage isolation compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Primary-side supply input | 3–5.5 V input referenced to GND1; powers logic and DC-DC primary side |
| GND1 | Primary-side ground | Reference for VCC and INx/SEL pins; must be separated from GNDO by PCB isolation barrier |
| INA–IND | Input channels A–D | LVCMOS-compatible digital inputs; support 100 Mbps switching with 0.7×VSI/0.3×VSI thresholds |
| OUTA–OUTD | Output channels A–D | Isolated LVCMOS outputs; drive ±4 mA at 5 V, ±2 mA at 3.3 V with rail-to-rail swing |
| VISO | Isolated output supply | Regulated 5 V or 3.3 V output (set by SEL); powers secondary-side circuitry and OUTx buffers |
| GND2 | Secondary-side ground | Reference for VISO and OUTx pins; galvanically isolated from GND1 by SiO₂ + transformer barriers |
| SEL | VISO voltage selection | Configures VISO = 5 V (shorted to VISO) or 3.3 V (shorted to GND2 or floating) |
| NC | No-connect | Pin 7 is internally unconnected; must remain unpopulated or left floating |
Key Features
| Feature | Design Value |
|---|---|
| Integrated DC-DC converter | Eliminates need for external isolated power supply, reducing BOM count and PCB area in BMS and OBC designs |
| AEC-Q100 Grade 1 qualification | Validated for –40°C to 125°C ambient operation, enabling placement near high-temperature power stages |
| Functional safety documentation | Provides FIT rate, failure mode analysis, and diagnostic coverage data to accelerate ISO 26262 ASIL-B system certification |
| Robust EMC performance | Meets system-level IEC 61000-4-2 (±8 kV contact), -4-4 (EFT), and -4-5 (surge) without external filtering |
| Reinforced isolation lifetime | Projected >100-year operational life at 1 kVRMS working voltage per TDDB modeling |
Applications
| Battery Management System (BMS) | On-Board Charger (OBC) |
|---|---|
Use Scenario: Isolating cell voltage monitoring and pack communication between high-voltage battery stack and low-voltage MCU. IC Role / Device Role / Timing Role: Quad-channel isolator provides independent signal paths for voltage sensing, temperature reporting, and fault signaling across 400–800 V DC bus. Use Value: Integrated 0.65 W DC-DC powers isolated ADCs and SPI interfaces, eliminating separate isolated bias rails and reducing component count by ≥3. | Use Scenario: Signal and power isolation between AC/DC front-end controller and DC/DC stage in bi-directional OBC. IC Role / Device Role / Timing Role: Transfers PWM commands and status signals across isolation barrier while supplying isolated gate drivers and sensors. Use Value: 100 Mbps data rate supports fast current-loop updates; ±100 kV/µs CMTI prevents false triggering during high-di/dt switching events. |
| Traction Inverter | DC/DC Converter |
Use Scenario: Isolating gate-drive signals and current-sense feedback in 400 V/800 V inverter modules. IC Role / Device Role / Timing Role: Delivers timing-critical PWM edges to IGBT/SiC half-bridges with 13 ns propagation delay and <1 ns skew. Use Value: Reinforced 5000 VRMS rating satisfies IEC 61800-5-1 requirements for motor drives; SEL pin enables flexible 3.3 V or 5 V gate-driver supply. | Use Scenario: Providing isolated control and feedback paths in high-efficiency 1–3 kW automotive DC/DC converters. IC Role / Device Role / Timing Role: Isolates analog voltage/current sense signals and digital enable/status lines between primary and secondary sides. Use Value: Low 100 mVpp output ripple (at 130 mA load) ensures stable reference for isolated error amplifiers and ADCs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-channel isolated power applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM6421AARIZ-RL | 4-channel isolator + 500 mW isolated DC-DC; 50 Mbps max data rate; no AEC-Q100 qualification | Limited to industrial/commercial use; lacks automotive temp range and functional safety documentation | Choose when automotive qualification is not required and lower data rate suffices |
| SI88642ED-IS | Quad-channel isolator with 500 mW isolated supply; 150 Mbps data rate; no integrated transformer (external inductor required) | Requires external magnetics and compensation components; higher layout complexity and validation effort | Prefer when higher speed is critical and board space allows discrete DC-DC implementation |
Compared with ADUM6421AARIZ-RL and SI88642ED-IS, ISOW7841FAQDWEQ1 uniquely combines AEC-Q100 Grade 1 qualification, 100 Mbps speed, integrated transformer-based DC-DC, and functional safety documentation-making it the only drop-in solution for production automotive BMS and traction inverter designs requiring full compliance.
Availability
ISOW7841FAQDWEQ1 is available at Aetrix Electronics and suitable for battery management systems, on-board chargers, traction inverters, and DC/DC converters requiring stable component supply, automotive qualification, and long-term lifecycle support.
Supply support for ISOW7841FAQDWEQ1 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, embedded processing, and high-reliability ICs for automotive, industrial, and communications markets.
The ISOW7841FAQDWEQ1 belongs to TI's automotive digital isolator product line, designed specifically to replace optocouplers and discrete isolation + DC-DC solutions in high-voltage electric vehicle power electronics.
FAQ
What is the maximum isolated output power of the ISOW7841FAQDWEQ1?
The ISOW7841FAQDWEQ1 delivers up to 0.65 W of isolated output power. This value is achieved with 5 V input and 5 V output configuration at 130 mA load current. Output capability varies by configuration: 3.3 V to 5 V supports ≥40 mA, 3.3 V to 3.3 V supports ≥75 mA, and 5 V to 3.3 V supports ≥130 mA. Derating applies above 80°C ambient.
Does the ISOW7841FAQDWEQ1 require external magnetics for its DC-DC converter?
No, the ISOW7841FAQDWEQ1 does not require external magnetics. It integrates a high-efficiency DC-DC converter with an on-chip transformer using thin-film polymer insulation. This eliminates the need for external inductors, transformers, or compensation components-reducing bill-of-materials and simplifying layout in space-constrained automotive modules.
How is the output voltage (VISO) configured on the ISOW7841FAQDWEQ1?
VISO is configured using the SEL pin: shorting SEL to VISO sets VISO = 5 V; shorting SEL to GND2 or leaving it floating sets VISO = 3.3 V. This configuration is latched at power-up and remains fixed during operation. The ISOW7841FAQDWEQ1 supports all four combinations (3.3 V/3.3 V, 3.3 V/5 V, 5 V/3.3 V, 5 V/5 V) with corresponding load current ratings.
What safety certifications apply to the ISOW7841FAQDWEQ1?
The ISOW7841FAQDWEQ1 is planned for certification to DIN V VDE V 0884-11:2017-01 (7071 VPK reinforced), UL 1577 (5000 VRMS), CSA/IEC 60950-1 and 62368-1, CQC GB4943.1-2011, and TUV EN 60950-1/EN 61010-1. All certifications are in progress per official TI documentation and align with automotive end-equipment standards.
What is the default output state of the ISOW7841FAQDWEQ1 upon power-up?
The ISOW7841FAQDWEQ1 has a default high output state for all four channels when the input signal is lost or undefined. This behavior applies to the standard version (no F suffix). Devices with the F suffix default to low output; however, ISOW7841FAQDWEQ1 is the non-F variant and therefore defaults high on OUTA–OUTD during undriven or fault conditions.
ISOW7841FAQDWEQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Type:
- General Purpose
- Isolated Power:
- Yes
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 3/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 5000Vrms
- Common Mode Transient Immunity (Min):
- 100kV/µs
- Data Rate:
- 100Mbps
- Propagation Delay tpLH / tpHL (Max):
- 17.6ns, 17.6ns
- Pulse Width Distortion (Max):
- 4.7ns
- Rise / Fall Time (Typ):
- 2ns, 2ns
- Voltage - Supply:
- 3V ~ 5.5V
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ISOW7841FAQDWEQ1 FAQ
1.How can I place an order for ISOW7841FAQDWEQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ISOW7841FAQDWEQ1 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 ISOW7841FAQDWEQ1 reliable?
The price and inventory of ISOW7841FAQDWEQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISOW7841FAQDWEQ1 is usually 5 days.
3.What payment methods are accepted for ISOW7841FAQDWEQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISOW7841FAQDWEQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISOW7841FAQDWEQ1?
ISOW7841FAQDWEQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISOW7841FAQDWEQ1 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 ISOW7841FAQDWEQ1?
For technical support, including ISOW7841FAQDWEQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISOW7841FAQDWEQ1 requirements.
6.How does Aetrix verify that ISOW7841FAQDWEQ1 is sourced from the original manufacturer or authorized distributors?
All ISOW7841FAQDWEQ1 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 ISOW7841FAQDWEQ1 meets industry standards.
7.What is the process for return or replacement of ISOW7841FAQDWEQ1?
All ISOW7841FAQDWEQ1 units undergo pre-shipment inspection (PSI). If there is an issue with ISOW7841FAQDWEQ1, 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 ISOW7841FAQDWEQ1 part is unused and in its original packaging.
Return procedure for ISOW7841FAQDWEQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISOW7841FAQDWEQ1 Tags
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ISO1212DBQR
Texas Instruments
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ISO6721BDR
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SI8710AC-B-ISR
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ISO7720FDR
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ISO7721DR
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ISO7721FDR
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SI8710CC-B-ISR
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ISO6741FQDWRQ1
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ISO7721DWVR
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ISO7762FDBQR
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ISO7741DWR
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ISO7741FDWR
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