ISO7762DBQR - 6-Ch 100Mbps Digital Isolator | TI
MPN： ISO7762DBQR ✓ 啟用中ISO7762DBQR 概覽
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.
直接替換替代品，適用於 ISO7762DBQR — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ISO7762DBQR （相同外形與佔位） — 差異在於 Package, Number of Channels, Channel Configuration, Isolation Rating, Isolation Type.
ISO7762FDBQR
✅ 直接替換聯絡詢價
查看資料表 →ISO7762DBQ
✅ 直接替換📋 參考替代品（不在目錄中）
ISO7742FDBQR
✅ 直接替換 ⚠️ 規格未經驗證✗ 缺貨
$2.35 / 單位
查看資料表 →ISO7741FDBQR
✅ 直接替換 ⚠️ 規格未經驗證✗ 缺貨
$0.98 / 單位
查看資料表 →ISO7762DBQR 規格
| Number of Channels | 6 |
| Channel Configuration | 4/2 (4 forward, 2 reverse) |
| Isolation Rating | 3000 Vrms (per UL 1577) |
| 資料速率 | 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 |
| 封裝 | 16-SSOP (DBQ), 0.154" width |
| 工作溫度範圍 | -55°C to 125°C |
| 輸出類型 | CMOS |
| 致能腳位 | Yes |
| Fail-Safe Mode | Yes |
| Certifications | UL 1577, VDE, CSA, TUV, CQC |
| RoHS 狀態 | Compliant |
ISO7762DBQR 腳位配置
| 腳位 1 | VCC1 — Supply voltage for side 1 |
| 腳位 2 | GND1 — Ground for side 1 |
| 腳位 3 | INA — Input channel A (side 1) |
| 腳位 4 | INB — Input channel B (side 1) |
| 腳位 5 | INC — Input channel C (side 1) |
| 腳位 6 | OUTD — Output channel D (side 1) |
| 腳位 7 | OUTE — Output channel E (side 1) |
| 腳位 8 | OUTF — Output channel F (side 1) |
| 腳位 9 | GND2 — Ground for side 2 |
| 腳位 10 | VCC2 — Supply voltage for side 2 |
| 腳位 11 | OUTA — Output channel A (side 2) |
| 腳位 12 | OUTB — Output channel B (side 2) |
| 腳位 13 | OUTC — Output channel C (side 2) |
| 腳位 14 | IND — Input channel D (side 2) |
| 腳位 15 | INE — Input channel E (side 2) |
| 腳位 16 | INF — Input channel F (side 2) |
典型應用
ISO7762DBQR 適用於 6 應用s: 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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
推薦產品摘要
工程參考資料，適用於 ISO7762DBQR — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | 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 |
主要差異化特點
- 6-channel configuration with 4/2 directionality (對比ISO7742FDBQR)
- High CMTI of ±100 kV/µs (對比ISO7241MDW)
- Wide supply range of 2.25V to 5.5V (對比ISO7241MDW)
設計說明
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.
合規資訊
RoHS compliant per TI product page. Certifications include UL 1577, VDE, CSA, TUV, CQC.
