My Inquiry
My Account
Texas Instruments ISO7741EDWRQ1
- Part No.:
- ISO7741EDWRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ISO7741EDWRQ1.pdf
- Description:
- DGTL ISO 5000VRMS 4CH 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,029
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ISO7741EDWRQ1 from Texas Instruments is a Grade 0 automotive-qualified, reinforced quad-channel digital isolator with 5000VRMS isolation rating, 100Mbps data rate, and ±100kV/μs typical CMTI. It features three forward and one reverse-direction channels, operates from 2.25V to 5.5V on both sides, and delivers 10.7ns typical propagation delay at 5V - enabling robust signal integrity in high-noise traction inverters and battery management systems.
For engineers reviewing the ISO7741EDWRQ1 datasheet, ISO7741EDWRQ1 pinout, ISO7741EDWRQ1 application, or ISO7741EDWRQ1 equivalent, this page provides verified technical context, validated pin functions, automotive-grade safety certifications (VDE 0884-17, UL 1577, IEC 62368-1), real-world EMC performance metrics, and confirmed alternative options for EV powertrain and body electronics designs.
Technical Context
The ISO7741EDWRQ1 implements dual capacitive SiO₂ insulation barriers per channel, supporting independent 2.25–5.5V input/output supply domains (VCCI/VCCO) with level translation capability. Its architecture includes dedicated enable pins (EN1/EN2) for side-specific output tri-state control, critical for multi-controller bus arbitration in motor control subsystems.
It delivers reinforced insulation per DIN EN IEC 60747-17 (VDE 0884-17) and UL 1577, with 1500VRMS working voltage, 8000VPK transient isolation, and 12.8kVPK surge rating. The device's default output behavior (high for non-F suffix) is defined by internal power-loss detection circuitry that triggers within 0.3μs when VCC drops below 1.7V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 100Mbps - supports high-speed CAN FD, SPI, and PWM feedback loops in traction inverters without timing bottlenecks. |
| Isolation Rating | 5000VRMS - certified reinforced barrier enabling safe separation between high-voltage power stages and low-voltage MCU domains. |
| CMTI | ±100kV/μs typical - rejects fast transients from IGBT switching noise in 800V EV architectures. |
| Propagation Delay | 10.7ns typical at 5V - ensures sub-15ns channel-to-channel skew for synchronized gate driver control. |
| Supply Range | 2.25V to 5.5V per side - allows direct interfacing with 3.3V MCUs and 5V analog sensors without external level shifters. |
| Ambient Temp Range | –40°C to +150°C - qualified for under-hood placement in belt starter generators and DC/DC converters. |
| EMC Immunity | ±8kV IEC 61000-4-2 contact discharge across barrier - eliminates need for external TVS protection on isolated data lines. |
Pinout & Package
ISO7741EDWRQ1 uses a wide-SOIC (DW-16) package measuring 10.30mm × 7.50mm body size with 16 leads. The isolation barrier separates side 1 (pins 1, 2, 3, 4, 5, 14, 15, 16) and side 2 (pins 6, 7, 8, 9, 10, 11, 12, 13), with GND1/GND2 and VCC1/VCC2 providing independent power domains.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA, INB, INC, IND | Input signals (side 1) | LVCMOS-compatible digital inputs driving channels A–D; accept 2.25–5.5V logic levels. |
| OUTA, OUTB, OUTC, OUTD | Output signals (side 2) | CMOS outputs with 4mA drive strength; default high state on VCC1 loss (non-F variant). |
| EN1 | Enable for side 1 outputs | Puts OUTA–OUTD into high-impedance when low - enables shared-bus configurations with multiple controllers. |
| EN2 | Enable for side 2 outputs | Puts INA–IND into high-impedance when low - supports bidirectional bus arbitration on isolated side. |
| VCC1, GND1 | Side 1 power domain | Supplies input-side logic; independent of VCC2/GND2 to break ground loops in mixed-voltage systems. |
| VCC2, GND2 | Side 2 power domain | Supplies output-side logic; enables level translation between 3.3V MCU and 5V actuator interfaces. |
Key Features
| Feature | Design Value |
|---|---|
| Grade 0 AEC-Q100 qualification | Validated for –40°C to +150°C ambient operation - suitable for direct mounting on power modules in EV traction inverters. |
| Functional Safety documentation | Includes FIT rate, failure mode analysis, and diagnostic coverage data - accelerates ISO 26262 ASIL-B system certification. |
| 30-year lifetime at 1500VRMS | Projected barrier reliability under continuous high-voltage stress - meets 15-year vehicle lifecycle requirements. |
| Low 1.5mA/channel @1Mbps | Reduces thermal load in densely packed BMS stacks where >100 isolators may operate simultaneously. |
| System-level ESD/EFT/surge immunity | Passes IEC 61000-4-2 (±8kV contact), -4-4 (4kV), and -4-5 (2kV) without external protection - simplifies PCB layout. |
Applications
| Battery Management System (BMS) | Traction Inverter Control |
|---|---|
Use Scenario: Isolating cell voltage monitoring ADCs and pack contactor control signals in 400–800V EV battery packs. IC Role / Device Role / Timing Role: Quad-channel isolator separating MCU domain (side 1) from high-side gate drivers and analog front-end (side 2). Use Value: Enables simultaneous sampling of 12+ cell voltages via daisy-chained SPI while blocking common-mode noise from pack switching transients. |
Use Scenario: Transmitting PWM gate signals and fault feedback between DSP and IGBT/SiC half-bridge drivers in motor inverters. IC Role / Device Role / Timing Role: Three forward channels carry PWM commands; one reverse channel returns DESAT and overcurrent status. Use Value: 10.7ns propagation delay ensures <15ns timing alignment across all six gate drivers in a 3-phase inverter leg. |
| On-Board Charger (OBC) | HVAC Compressor Module |
Use Scenario: Isolating digital control signals between AC/DC PFC stage and DC/DC LLC converter in bi-directional OBCs. IC Role / Device Role / Timing Role: Reinforced barrier prevents ground loop currents from disrupting current sensing in high-frequency resonant converters. Use Value: 5000VRMS rating supports 1000V DC-link isolation required for 22kW OBCs compliant with CISPR 25 Class 5. |
Use Scenario: Interfacing HVAC controller MCU with high-voltage inverter driving 400V e-compressors in electric vehicles. IC Role / Device Role / Timing Role: Translating 3.3V MCU logic to 5V gate driver inputs while rejecting EMI from compressor motor windings. Use Value: ±100kV/μs CMTI prevents false triggering during rapid voltage transitions in 15kHz PWM-driven compressors. |
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 |
|---|---|---|---|
| Si8641BD-B-IS | 4-channel, 150Mbps, 3750VRMS rating, 2.5–5.5V supply, no enable pins | Lacks EN1/EN2 for tri-state control; lower isolation rating limits use in >600V systems | Preferred for cost-sensitive 48V mild-hybrid BMS where 3750VRMS suffices and bus arbitration is not required. |
| ADUM2401ARWZ-RL | 4-channel, 25Mbps, 5000VRMS, 3.0–5.5V, no automotive qualification | Not AEC-Q100 qualified; lacks Grade 0 temp range and functional safety documentation | Acceptable for non-safety-critical body electronics prototypes but requires requalification for production EV systems. |
Compared with ISO7741EDWRQ1, Si8641BD-B-IS offers higher speed but reduced isolation and no enable functionality, while ADUM2401ARWZ-RL provides identical 5000VRMS rating but lacks automotive qualification and fails to meet ASIL-B design assurance requirements.
Availability
ISO7741EDWRQ1 is available at Aetrix Electronics and suitable for battery management systems, traction inverters, and on-board chargers requiring stable component supply across multi-year EV platform lifecycles.
Supply support for ISO7741EDWRQ1 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 leader specializing in analog and embedded processing technologies, with deep expertise in automotive-grade isolation and power management solutions.
The ISO7741E-Q1 product line delivers reinforced digital isolation for high-reliability EV powertrain systems, designed specifically to meet AEC-Q100 Grade 0, ISO 26262 functional safety, and stringent EMC requirements in 800V architectures.
FAQ
What is the isolation voltage rating of the ISO7741EDWRQ1?
The ISO7741EDWRQ1 has a certified 5000VRMS isolation rating per UL 1577 and reinforced insulation per DIN EN IEC 60747-17 (VDE 0884-17), with a 1500VRMS working voltage and 12.8kVPK surge capability. These values are measured across the internal SiO₂ barrier and validated for lifetime reliability at 150°C ambient temperature - making ISO7741EDWRQ1 suitable for direct integration into 800V EV power stages.
Does the ISO7741EDWRQ1 support level translation between different supply voltages?
Yes, the ISO7741EDWRQ1 supports true bidirectional level translation: VCCI (input side) and VCCO (output side) each operate independently from 2.25V to 5.5V. This allows interfacing a 3.3V automotive MCU with 5V gate drivers or analog sensors without external level shifters - a key feature confirmed in the device's Recommended Operating Conditions table and functional description.
How many channels does the ISO7741EDWRQ1 have, and what is their directionality?
The ISO7741EDWRQ1 is a quad-channel isolator with three forward-direction channels (INA→OUTA, INB→OUTB, INC→OUTC) and one reverse-direction channel (IND←OUTD). This asymmetric configuration is explicitly defined in the device description and functional block diagram, enabling optimized signal flow for motor control applications where PWM commands dominate but fault feedback is critical.
What safety certifications does the ISO7741EDWRQ1 hold for automotive use?
The ISO7741EDWRQ1 holds DIN EN IEC 60747-17 (VDE 0884-17), UL 1577, IEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1 certifications. It is AEC-Q100 Grade 0 qualified (–40°C to +150°C) and documented for functional safety system design - including FIT rate and failure mode analysis - supporting ASIL-B compliance in ISO 26262 applications.
What is the default output state of the ISO7741EDWRQ1 during power loss?
The ISO7741EDWRQ1 (non-F suffix) defaults to high output state when VCC1 drops below 1.7V, with a guaranteed delay of ≤0.3μs from undervoltage detection to output transition. This behavior is specified in the Device Functional Modes section and confirmed in the Switching Characteristics tables under "tDO - Default output delay time from input power loss".
ISO7741EDWRQ1 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
ISO7741EDWRQ1 FAQ
1.How can I place an order for ISO7741EDWRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ISO7741EDWRQ1 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 ISO7741EDWRQ1 reliable?
The price and inventory of ISO7741EDWRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISO7741EDWRQ1 is usually 5 days.
3.What payment methods are accepted for ISO7741EDWRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISO7741EDWRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISO7741EDWRQ1?
ISO7741EDWRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISO7741EDWRQ1 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 ISO7741EDWRQ1?
For technical support, including ISO7741EDWRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISO7741EDWRQ1 requirements.
6.How does Aetrix verify that ISO7741EDWRQ1 is sourced from the original manufacturer or authorized distributors?
All ISO7741EDWRQ1 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 ISO7741EDWRQ1 meets industry standards.
7.What is the process for return or replacement of ISO7741EDWRQ1?
All ISO7741EDWRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with ISO7741EDWRQ1, 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 ISO7741EDWRQ1 part is unused and in its original packaging.
Return procedure for ISO7741EDWRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISO7741EDWRQ1 Tags
-
ISO1212DBQR
Texas Instruments
-
ISO6721BDR
Texas Instruments
-
SI8710AC-B-ISR
Skyworks Solutions Inc.
-
ISO7720FDR
Texas Instruments
-
ISO7721DR
Texas Instruments
-
ISO7721FDR
Texas Instruments
-
SI8710CC-B-ISR
Skyworks Solutions Inc.
-
ISO6741FQDWRQ1
Texas Instruments
-
ISO7721DWVR
Texas Instruments
-
ISO7762FDBQR
Texas Instruments
-
ISO7741DWR
Texas Instruments
-
ISO7741FDWR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
