ISO7762DBQR - 6-Ch 100Mbps Digital Isolator | TI
MPN: ISO7762DBQR ✓ Hoạt độngISO7762DBQR Tóm tắt
Digital isolators are components that transmit digital signals across an isolation barrier, providing galvanic isolation to protect circuits and users from high voltages, ground loops, and noise. They are essential in systems where safety and signal integrity are critical, such as in motor drives, power converters, and medical equipment. The ISO7762DBQR belongs to the ISO776x family, which includes variants with different channel configurations and isolation ratings, all certified to VDE, CSA, TUV, and CQC standards.
Key features of the ISO7762DBQR include its reinforced isolation barrier with a projected lifetime of over 30 years, surge capability up to 12.8 kV, and low power consumption. The device supports CMOS or LVCMOS digital I/Os and offers high electromagnetic immunity and low emissions, ensuring reliable operation in noisy environments. The 4/2 channel configuration (four forward, two reverse) is ideal for applications requiring bidirectional communication.
Technically, the ISO7762DBQR uses TI's proprietary capacitive isolation technology, which provides fast propagation delays and low jitter. The device features an enable pin for output control and a fail-safe mode that defaults outputs to a known state when inputs are unpowered. The wide supply range allows seamless interfacing with 2.5V, 3.3V, and 5V logic, simplifying system design.
Typical applications include industrial fieldbus communication, isolated SPI/UART interfaces, motor control feedback, and isolated power supply monitoring. The high CMTI and robust isolation make it suitable for harsh environments where voltage transients are common.
When designing with the ISO7762DBQR, ensure proper PCB layout with adequate creepage and clearance distances to maintain the isolation rating. Place decoupling capacitors close to the VCC pins and follow the recommended layout guidelines in the datasheet to achieve optimal performance.
Bộ thay thế dễ dàng lắp đặt cho ISO7762DBQR — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ISO7762DBQR (cùng hình factor và footprint) — khác nhau ở Package, Number of Channels, Channel Configuration, Isolation Rating, Isolation Type.
ISO7762FDBQR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ISO7762DBQ
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ISO7742FDBQR
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ISO7741FDBQR
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ISO7762DBQR Thông số kỹ thuật
| Number of Channels | 6 |
| Channel Configuration | 4/2 (4 forward, 2 reverse) |
| Isolation Rating | 3000 Vrms (per UL 1577) |
| Tốc độ dữ liệu | 100 Mbps |
| CMTI (Common-Mode Transient Immunity) | ±100 kV/µs (typical) |
| Supply Voltage Range | 2.25 V to 5.5 V |
| Surge Capability | 12.8 kV |
| Projected Lifetime | >30 years |
| Hộp | 16-SSOP (DBQ), 0.154" width |
| Khoảng nhiệt độ hoạt động | -55°C to 125°C |
| Kiểu đầu ra | CMOS |
| N Nap kích hoạt | Yes |
| Fail-Safe Mode | Yes |
| Certifications | UL 1577, VDE, CSA, TUV, CQC |
| Trạng thái RoHS | Compliant |
Cấu hình chân ISO7762DBQR
| Chân 1 | VCC1 — Supply voltage for side 1 |
| Chân 2 | GND1 — Ground for side 1 |
| Chân 3 | INA — Input channel A (side 1) |
| Chân 4 | INB — Input channel B (side 1) |
| Chân 5 | INC — Input channel C (side 1) |
| Chân 6 | OUTD — Output channel D (side 1) |
| Chân 7 | OUTE — Output channel E (side 1) |
| Chân 8 | OUTF — Output channel F (side 1) |
| Chân 9 | GND2 — Ground for side 2 |
| Chân 10 | VCC2 — Supply voltage for side 2 |
| Chân 11 | OUTA — Output channel A (side 2) |
| Chân 12 | OUTB — Output channel B (side 2) |
| Chân 13 | OUTC — Output channel C (side 2) |
| Chân 14 | IND — Input channel D (side 2) |
| Chân 15 | INE — Input channel E (side 2) |
| Chân 16 | INF — Input channel F (side 2) |
Ứng dụng tiêu biểu
ISO7762DBQR phù hợp cho 6 Áp dụngs: Industrial Fieldbus Communication, Isolated SPI/UART Interface, Motor Control Feedback, Isolated Power Supply Monitoring, Medical Equipment Isolation, Automotive Electronics.
Industrial Fieldbus Communication
The ISO7762DBQR provides galvanic isolation for fieldbus interfaces such as PROFIBUS, Modbus, and CAN. Its 100 Mbps data rate and high CMTI of ±100 kV/µs ensure reliable data transmission in electrically noisy industrial environments. The 4/2 channel configuration supports bidirectional communication, making it ideal for isolated transceivers. With a 3000-VRMS isolation rating, it protects sensitive controllers from ground loops and voltage transients, enhancing system safety and reliability.
Được đề xuất
Isolated SPI/UART Interface
The ISO7762DBQR is well-suited for isolating SPI or UART communication between microcontrollers and peripherals. Its 100 Mbps data rate easily handles SPI clock speeds, while the 4/2 channel configuration provides separate lines for MOSI, MISO, SCLK, and chip select. The wide supply range of 2.25V to 5.5V allows direct interfacing with various logic levels. The high CMTI ensures data integrity even with fast switching transients, making it ideal for motor drives and power converters.
Được đề xuất
Motor Control Feedback
In motor control systems, the ISO7762DBQR isolates encoder and Hall sensor signals from the controller. Its high CMTI of ±100 kV/µs prevents false triggering from PWM-induced noise, while the 3000-VRMS isolation protects low-voltage logic from high-voltage transients. The 6-channel configuration can accommodate multiple feedback signals, reducing component count. The wide temperature range of -55°C to 125°C ensures reliable operation in demanding industrial environments.
Được đề xuất
Isolated Power Supply Monitoring
The ISO7762DBQR can be used to isolate digital signals from power supply monitoring circuits, such as voltage and current sensors. Its high data rate and low propagation delay allow real-time monitoring of power parameters. The reinforced isolation rating ensures safe communication between the high-voltage side and the low-voltage controller. The device's low power consumption is beneficial for always-on monitoring applications, and its small SSOP package saves PCB space.
Được đề xuất
Medical Equipment Isolation
The ISO7762DBQR provides galvanic isolation for patient-connected medical devices, ensuring safety and compliance with stringent standards. Its 3000-VRMS isolation rating and certifications (UL, VDE, CSA, TUV, CQC) meet medical safety requirements. The high CMTI and low emissions make it suitable for sensitive analog front-ends. The wide temperature range and robust construction ensure long-term reliability in critical healthcare applications.
Được đề xuất
Automotive Electronics
The ISO7762DBQR is suitable for automotive applications such as battery management systems (BMS) and on-board chargers, where isolation is critical for safety. Its wide temperature range (-55°C to 125°C) and high CMTI ensure reliable operation in harsh automotive environments. The 100 Mbps data rate supports high-speed communication between isolated domains. The device's certifications and robust design make it a trusted choice for automotive-grade isolation.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ISO7762DBQR — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | ISO7762FDBQR | ISO7762DBQ | ISO7742FDBQR | ISO7741FDBQR |
|---|---|---|---|---|---|
| Package | 16-SSOP (DBQ) | 16-SSOP (DBQ) | 16-SSOP (DBQ) | 16-SSOP (DBQ) | 16-SSOP (DBQ) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Number of Channels | 6 | 6 | 6 | 4 | 4 |
| Channel Configuration | 4/2 | 4/2 | 4/2 | 2/2 | 3/1 |
| Isolation Rating | 3000 Vrms | 3000 Vrms | 3000 Vrms | 3000 Vrms | 3000 Vrms |
| Data Rate | 100 Mbps | 100 Mbps | 100 Mbps | 100 Mbps | 100 Mbps |
| CMTI | ±100 kV/µs | ±100 kV/µs | ±100 kV/µs | ±100 kV/µs | ±100 kV/µs |
| Supply Voltage Range | 2.25V to 5.5V | 2.25V to 5.5V | 2.25V to 5.5V | 2.25V to 5.5V | 2.25V to 5.5V |
Bảo phân biệt quan trọng
- 6-channel configuration with 4/2 directionality (vsISO7742FDBQR)
- High CMTI of ±100 kV/µs (vsISO7241MDW)
- Wide supply range of 2.25V to 5.5V (vsISO7241MDW)
Ghi chú thiết kế
For optimal isolation performance, maintain at least 8 mm creepage and clearance distance between the input and output sides on the PCB. Place a 0.1 µF decoupling capacitor close to each VCC pin (VCC1 and VCC2) to minimize noise. Use a solid ground plane under the device, but ensure the isolation barrier is not bridged by any copper traces.
The ISO7762DBQR operates from 2.25V to 5.5V on both sides. Ensure that VCC1 and VCC2 are within the specified range and that the power supply can handle the total current consumption, which is typically a few milliamps per channel. Use low-ESR capacitors to maintain stable supply voltages, especially during high-speed switching.
Do not exceed the absolute maximum ratings, particularly the supply voltage and isolation voltage. Ensure that the input signals do not exceed the supply voltage. When using the enable pin, note that disabling the outputs may cause the fail-safe mode to activate, which could affect system behavior. Always refer to the datasheet for the exact fail-safe state.
Thông tin tuân thủ
RoHS compliant per TI product page. Certifications include UL 1577, VDE, CSA, TUV, CQC.
