ISO6763FQDWRQ1 - 6-Ch 50Mbps Digital Isolator 5kVrms | TI
MPN: ISO6763FQDWRQ1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.18 | $2.18 |
| 10 | $1.96 | $19.60 |
| 100 | $1.92 | $192.00 |
| 500 | $1.85 | $925.00 |
| 1,000 | $1.78 | $1,780.00 |
ISO6763FQDWRQ1 Overview
A digital isolator is a semiconductor device that transfers digital signals across an isolation barrier while blocking high voltages, ground loops, and common-mode transients. Within the power and signal-chain hierarchy, it sits between level translators and optocouplers: unlike optocouplers, capacitive or inductive digital isolators provide far higher data rates, tighter channel-to-channel matching, longer lifetime, and lower power consumption, making them the modern choice for galvanic isolation in industrial and automotive systems.
Key features include support for 1.8 V, 2.5 V, 3.3 V, and 5 V logic on either side of the barrier, robust EMC performance with 100 kV/us CMTI for harsh motor-drive environments, and a symmetric 3/3 channel arrangement that suits bidirectional buses such as SPI and general-purpose parallel signaling. The automotive Q1 qualification and AEC-Q100-grade temperature range address under-hood and traction-battery requirements.
Architecturally, the ISO676x family uses TI's silicon-dioxide isolation barrier with on-chip RF oscillators and data coding to transmit across the capacitive barrier with deterministic propagation delay and high immunity to external fields. The wide-body 16-pin SOIC (DW) package is a pin-to-pin upgrade to older TI generations, easing drop-in redesigns, and its 8 mm creepage/clearage supports reinforced isolation ratings per UL 1577.
Typical applications include isolated SPI communication in battery management systems, industrial PLC digital I/O isolation, motor-drive gate-drive supervisory links, and isolated interfaces between microcontrollers and field-side sensors.
When designing, keep total data rate within 50 Mbps and verify the supply range on each side independently, since the two sides support different logic levels by design.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for ISO6763FQDWRQ1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ISO6763FQDWRQ1 (same form factor and footprint) — differing in Package, Isolation Rating, CMTI, Channel Configuration, Channel Direction.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ISO6763QDWRQ1
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →ISO6761FQDWRQ1
✅ Drop-In📋 Reference alternative (not in catalog)
ISO6762FQDWRQ1
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
ISO6760FDWR
✅ Drop-In✓ In Stock
$1.84 / Unit
View Datasheet →ISO6763FDWRQ1
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
ISO7761FDWR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
ISO6763FQDWRQ1 Specifications
| Channel Count | 6 |
| Channel Configuration | 3/3 |
| Maximum Data Rate | 50 Mbps |
| Isolation Rating | 5000 Vrms |
| Common-Mode Transient Immunity | 100 kV/us |
| Supported Logic Levels | 1.8 V, 2.5 V, 3.3 V, 5 V |
| Isolation Type | Reinforced |
| Package | 16-SOIC (DW, 7.50 mm width) |
| Operating Temperature Range | -40C to +125C |
| Qualification | Automotive (Q1) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Typical Application Interface | SPI, general-purpose digital |
| Family | ISO676x-Q1 |
| Reinforced EMC | Yes (robust EMC per datasheet family description) |
ISO6763FQDWRQ1 16-soic (dw, 7.50 mm width) Pin Configuration Guide
Pin configuration for ISO6763FQDWRQ1 (16-soic (dw, 7.50 mm width) package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for ISO6763FQDWRQ1.
Refer to the datasheet for full pin configuration.
Typical Applications
ISO6763FQDWRQ1 is suitable for 6 applications: Isolated SPI in Battery Management Systems, Industrial PLC Digital I/O Isolation, Motor Drive Control Communication, Isolated Interfaces Between MCU and Field Sensors, Grid and Solar Inverter Communication, Medical Equipment Patient Isolation.
Isolated SPI in Battery Management Systems
The ISO6763FQDWRQ1's symmetric 3/3 channel layout maps directly onto isolated SPI links in automotive battery management systems, carrying CS, SCLK, and MOSI in one direction group and MISO in the other at up to 50 Mbps. Its 100 kV/us CMTI withstands the large dv/dt transients generated by contactor switching and inverter operation, while the 5000 Vrms reinforced barrier isolates the high-voltage battery stack from the low-voltage vehicle domain. Native 1.8 V logic support lets it connect directly to low-voltage BCU microcontrollers without level translators, and the -40C to +125C Q1 rating covers under-hood and pack-mounted environments. Place the isolator close to the pack-side connector and route barrier-side traces with adequate creepage; expect propagation delay in the tens of nanoseconds range, negligible for SPI clocks up to 20 MHz.
Recommended
Industrial PLC Digital I/O Isolation
In programmable logic controllers, the ISO6763FQDWRQ1 isolates field-side digital inputs and outputs from the backplane logic domain. Six channels in one package consolidate what would otherwise require three dual-channel isolators, reducing BOM count, board area, and barrier-to-barrier timing mismatch. The 50 Mbps rate comfortably covers parallel I/O refresh and high-speed counter lines, while 5000 Vrms reinforced isolation meets the galvanic separation expected between field wiring and logic in industrial control panels. Robust EMC performance, including 100 kV/us CMTI, tolerates the switching noise of relays, contactors, and variable-frequency drives typical in factory environments. Supplying each side from its domain's rail (1.8 V to 5 V) lets the same footprint serve both legacy 5 V backplanes and modern low-voltage logic across successive PLC generations.
Recommended
Motor Drive Control Communication
In variable-frequency drives and servo amplifiers, the ISO6763FQDWRQ1 bridges the controller and power-stage domains, carrying PWM enables, fault feedback, and status flags across the isolation barrier. The 100 kV/us CMTI rating is the headline figure here: gate-driver switching produces slew rates that corrupt ordinary optocoupler links, whereas the ISO6763FQDWRQ1's capacitive barrier is specified for 100 kV/us per the family datasheet. The 50 Mbps data rate leaves ample margin for fast fault signaling, and the deterministic low channel-to-channel skew keeps control-loop timing tight. Q1 qualification and the -40C to +125C range suit both industrial drives and traction-inverter environments, and the wide-body SOIC (DW) footprint with its 8 mm-class creepage supports the reinforced-isolation spacing that motor-drive safety designs require.
Recommended
Isolated Interfaces Between MCU and Field Sensors
When low-voltage microcontrollers must talk to sensors referenced to a different ground potential, such as shunt-based current sensing or high-side voltage telemetry in industrial and automotive systems, the ISO6763FQDWRQ1 provides the data path while blocking ground-loop currents entirely. Three channels in each direction handle clocked sensor buses like SPI or frame-based status protocols; the 50 Mbps limit accommodates ADC streams from precision converters on the field side. Because each side accepts 1.8 V to 5 V supplies independently, a 1.8 V MCU can directly drive one side while the field side runs at 3.3 V or 5 V. The 5000 Vrms reinforced rating and robust EMC allow the sensor electronics to sit close to noisy power electronics without data corruption, and Q1 qualification supports automotive sensor modules.
Recommended
Grid and Solar Inverter Communication
Solar string inverters and grid-tie converters require reinforced isolation between the MPPT/control electronics and user-accessible communication ports. The ISO6763FQDWRQ1 isolates RS-485-style bit streams, enable lines, and status signals on ports that must meet reinforced-isolation creepage and clearage rules, and the wide-body 16-pin SOIC (DW) package supports the required surface distance. The 50 Mbps rate is far beyond 9600-baud-to-1 Mbps industrial fieldbus needs, giving timing margin for software-based protocols, while 100 kV/us CMTI rejects common-mode noise coupled onto long field cabling during lightning-induced surges and switching events. Operating up to +125C suits outdoor enclosures with passive cooling, and the digital architecture avoids optocoupler LED aging, keeping link timing stable over a 25-year service life.
Recommended
Medical Equipment Patient Isolation
Diagnostic and monitoring equipment must isolate patient-connected circuitry from mains-referenced processing electronics with reinforced barriers. The ISO6763FQDWRQ1's 5000 Vrms UL 1577 isolation rating and wide-body SOIC (DW) creepage make it suitable for digital links crossing the patient-isolation boundary, such as SPI traffic to front-end ADCs acquiring biopotential or pressure signals. The 50 Mbps rate supports high-sample-rate delta-sigma converter streams, and the capacitive isolation architecture contributes no LED wear-out mechanism, preserving channel timing over years of continuous hospital operation. Low power on the field side matters for battery-powered portable instruments, and the 1.8 V capability pairs with modern low-voltage analog front ends, letting designers keep the isolated domain's supply rail and power budget minimal.
Recommended
Recommended Products Summary
Engineering reference data for ISO6763FQDWRQ1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ISO6763QDWRQ1 | ISO6761FQDWRQ1 | ISO6762FQDWRQ1 | ISO6760FDWR |
|---|---|---|---|---|---|
| Package | 16-SOIC (DW, 7.50 mm) | 16-SOIC (DW) - same | 16-SOIC (DW) - same | 16-SOIC (DW) - same | 16-SOIC (DW) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Channel Configuration | 6-ch, 3/3 | 6-ch, 3/3 | 6-ch (different direction split) | 6-ch (different direction split) | 6-ch, 4/2 |
| Data Rate | 50 Mbps | 50 Mbps | 50 Mbps | 50 Mbps | 50 Mbps |
| Isolation Rating | 5000 Vrms | 5000 Vrms | 5000 Vrms | 5000 Vrms | 5000 Vrms |
| CMTI | 100 kV/us | 100 kV/us | 100 kV/us | 100 kV/us | 100 kV/us |
| Automotive Qualification | Yes (Q1) | Yes (Q1) | Yes (Q1) | Yes (Q1) | No (industrial) |
Key Differentiators
- Symmetric 3/3 channel direction for SPI-class buses (vs ISO6760FDWR)
- Automotive Q1 grade at industrial price point (vs ISO6760FDWR)
- Drop-in option-code flexibility within the same die (vs ISO6763QDWRQ1)
Design Notes
Maintain full creepage and clearage across the isolation barrier under the wide-body SOIC (DW) package: do not run any copper (signal, ground, or silkscreen) in the barrier zone between the two package sides, and consider a slot or routed cutout beneath the package to extend surface distance per the ISO676x-Q1 datasheet layout guidance. Keep components assigned to side 1 and side 2 strictly on their respective barrier zones. TI's datasheet layout section provides the minimum spacing values for reinforced isolation; verify against your end-equipment safety standard before finalizing the board.
Decouple VCC1 and VCC2 independently with 0.1 uF ceramic capacitors placed within 2 mm of each supply pin, plus a bulk 1 uF per side. Because the two sides may run at different voltages (1.8 V to 5 V each), verify that each side's supply stays within its rated range across transients; the isolator's default output state on the unpowered side should be checked in the datasheet if a rail can collapse while the other remains live, since missing-supply behavior determines fail-safe logic levels in fault conditions.
At data rates approaching 50 Mbps, treat barrier-crossing traces as controlled-impedance lines and keep series resistors near the driving side to limit ringing. Although the 100 kV/us CMTI rating makes the isolator immune to common-mode slew, ground potential difference across the barrier still appears at the receiver inputs of other nearby devices; route barrier-crossing signals away from sensitive analog nodes to prevent capacitive coupling of the large dv/dt into high-impedance nodes on either side.
The ISO676x family shares one footprint but different channel-direction splits across ISO6760/61/62/63. A common error is dropping in another family member without re-checking the direction table, which silently swaps input/output roles on some pins. Always cross-check the pin configuration table for the specific orderable part before substitution, even for pin-to-pin compatible devices in the same DW package.
Compliance Information
Automotive Q1 qualified per TI product page; UL 1577 5000 Vrms isolation rating per family description. Formal REACH/halogen declarations should be pulled from TI.com quality documents for this OPN.
