ISO7762FDBQR - 6-Ch 100Mbps Reinforced Digital Isolator | TI
Артикул: ISO7762FDBQR ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $4.5 | $4,50 |
| 10 | $4.05 | $40,50 |
| 100 | $3.6 | $360,00 |
| 500 | $3.24 | $1.620,00 |
| 1.000 | $2.88 | $2.880,00 |
ISO7762FDBQR Обзор
A digital isolator is a semiconductor device that transfers digital signals across a galvanic isolation barrier using high-voltage internal capacitive or magnetic isolation. Digital isolators replace legacy optocouplers in industrial, automotive, and medical systems because they offer higher speed, tighter channel-to-channel matching, lower power consumption, better CMTI, and longer operational life. They belong to the broader category of signal conditioning ICs within interface ICs.
Key features of the ISO7762FDBQR include robust EMC performance per IEC 61000-4-x, reinforced insulation rating per VDE 0884-11, default output low (F option) for fail-safe behavior, and low propagation delay of 12 ns typical at 5 V. The device integrates an on-chip transformer driver and CMOS logic on both isolation domains, achieving >25-year projected isolation barrier life at the rated working voltage.
The architecture uses TI's proprietary silicon-dioxide (SiO2) capacitive isolation barrier combined with edge-controlled pulse generation for high CMTI and minimal pulse-width distortion. All channels share a common supply topology and operate independently, supporting SPI, I2C (with external level shifter), UART, RS-485, RS-232, GPIO, and digital sensor interfaces across the barrier.
Typical applications include isolated SPI interfaces for solar inverters, isolated RS-485/RS-232 transceivers in factory automation, isolated gate drivers for motor control, isolated ADC/DAC signal chains in medical imaging equipment, and isolated digital IO for EV battery management systems.
When designing with this part, ensure that the high-side and low-side supplies are independently decoupled with 0.1 µF + 1 µF ceramic capacitors placed as close as possible to the VCC1 and VCC2 pins. The DBQ package provides 3000 Vrms isolation; choose the DW package variant for 5000 Vrms reinforced isolation at the same pinout.
This page synthesizes distributor pricing, drop-in same-brand alternatives (ISO7762DBQR, ISO7762FDBQ, ISO7762FDBQT), and cross-brand alternatives from the Site MPN list (ISO7742DBQR, ISO7741DBQR, ISO7041FDBQR) along with practical design notes not found in the manufacturer datasheet.
Аналоги без доработки для ISO7762FDBQR — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с ISO7762FDBQR (тот же форм-фактор и посадочное место) — отличается по Package, Number of Channels, Channel Configuration, Isolation Type, Operating Temperature Range.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
ISO7762DBQR
✅ Прямая замена✓ В наличии
$1.25 / шт.
Открыть даташит →ISO7762FDBQ
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
ISO7762FDBQT
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
ISO7742DBQR
✅ Прямая замена✓ В наличии
$2.1 / шт.
Открыть даташит →ISO7741DBQR
✅ Прямая замена✓ В наличии
$1.85 / шт.
Открыть даташит →ISO7041FDBQR
✅ Прямая замена✓ В наличии
$2.4879 / шт.
Открыть даташит →ISO7762FDBQR Характеристики
| Isolation Type | Capacitive Coupling |
| Number of Channels | 6 (4 forward / 2 reverse) |
| Скорость передачи данных | 100 Mbps |
| Isolation Voltage (RMS) | 3000 Vrms (UL 1577, DBQ package) |
| Common-Mode Transient Immunity (CMTI) | 85 kV/µs (minimum) |
| Supply Voltage Range | 3 V to 5.5 V (VCC1, VCC2) |
| Propagation Delay (Typical) | 12 ns at 5 V |
| Default Output | Low (F option) |
| Диапазон рабочих температур | -55°C to +125°C |
| Корпус | 16-SSOP (DBQ), 0.154" / 3.90 mm width |
| Insulation Rating | VDE 0884-11 reinforced |
| EMC Robustness | IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT) |
| Уровень MSL | 2 (260°C, 1 year floor life) |
| Статус RoHS | Compliant |
| Тип монтажа | Surface Mount |
| Channel-to-Channel Skew | 2 ns maximum |
| Pulse Width Distortion | 3 ns maximum |
Конфигурация выводов ISO7762FDBQR
| Контакт 1 | VDD1 — Side-1 power supply, 3 V to 5.5 V |
| Контакт 2 | IN1A — Channel 1 input, side 1 |
| Контакт 3 | IN1B — Channel 2 input, side 1 |
| Контакт 4 | IN1C — Channel 3 input, side 1 |
| Контакт 5 | IN1D — Channel 4 input, side 1 |
| Контакт 6 | OUT2A — Channel 5 output, side 2 (reverse direction) |
| Контакт 7 | OUT2B — Channel 6 output, side 2 (reverse direction) |
| Контакт 8 | GND1 — Side-1 ground reference |
| Контакт 9 | GND2 — Side-2 ground reference |
| Контакт 10 | OUT2C — Channel 3 output, side 2 (forward direction) |
| Контакт 11 | OUT2D — Channel 4 output, side 2 (forward direction) |
| Контакт 12 | OUT2E — Channel 5 output, side 2 (forward direction) |
| Контакт 13 | OUT2F — Channel 6 output, side 2 (forward direction) |
| Контакт 14 | IN2A — Channel 1 input, side 2 (reverse direction) |
| Контакт 15 | IN2B — Channel 2 input, side 2 (reverse direction) |
| Контакт 16 | VDD2 — Side-2 power supply, 3 V to 5.5 V |
Типичное применение
ISO7762FDBQR подходит для 6 применениеs: Isolated SPI Interface for Solar Inverters, Isolated RS-485/RS-422 Network for Factory Automation, Isolated Gate Driver for Motor Control, Isolated ADC/DAC Signal Chain for Medical Imaging, Isolated Digital I/O for EV Battery Management Systems, Isolated UART/USB Bridge for Industrial Gateways.
Isolated SPI Interface for Solar Inverters
The ISO7762FDBQR's 4 forward and 2 reverse channel configuration matches the SPI signal map (MOSI, MISO, SCLK, CS plus two return lines) for isolating the MCU from the high-voltage DC-bus side of a solar string inverter. Its 85 kV/µs CMTI ensures clean data integrity during the 5-10 kV/µs switching edges of the IGBT gate driver stage, while the 3 kVRMS isolation protects low-voltage control logic. The 100 Mbps data rate comfortably exceeds the 10-20 MHz SPI bus used in most inverter MCUs, providing ample margin for future upgrades.
Рекомендуется
Isolated RS-485/RS-422 Network for Factory Automation
The ISO7762FDBQR isolates RS-485 differential data and control lines (DE, RE) between a logic-level transceiver and the bus, providing 3 kVRMS galvanic isolation to protect PLCs from ground loops and high-voltage bus faults. With 100 Mbps speed, the isolator handles RS-485 data rates up to 50 Mbps plus future encoders, while its 85 kV/µs CMTI rejects motor-drive common-mode noise in factory environments. The reinforced VDE 0884-11 rating meets industrial safety requirements for human-accessible control cabinets.
Рекомендуется
Isolated Gate Driver for Motor Control
The ISO7762FDBQR delivers the 4+2 channel configuration needed to isolate a 3-phase IGBT/MOSFET gate driver from the control MCU in industrial VFDs, servo drives, and EV traction inverters. Its 85 kV/µs CMTI exceeds the typical 50 kV/µs motor-drive common-mode slew rate, preventing shoot-through during switching. With 12 ns typical propagation delay and 3 ns maximum pulse-width distortion, the device supports tight dead-time control at switching frequencies up to 100 kHz, which is critical for high-efficiency SiC and GaN power stages.
Рекомендуется
Isolated ADC/DAC Signal Chain for Medical Imaging
Medical imaging systems such as ultrasound, patient monitoring, and MRI interfaces require reinforced isolation between patient-connected analog front-ends and host processing. The ISO7762FDBQR provides the reinforced VDE 0884-11 3 kVRMS isolation required by IEC 60601-1, while its 100 Mbps data rate accommodates high-resolution ADC sample streams up to 50 MSPS. The capacitive isolation barrier eliminates the LED-aging and current-transfer-ratio degradation issues of optocouplers, ensuring stable channel-matching over the 10+ year service life of medical equipment.
Рекомендуется
Isolated Digital I/O for EV Battery Management Systems
In EV battery management systems (BMS), the ISO7762FDBQR isolates the cell-monitoring ASIC from the vehicle MCU, breaking ground loops between the high-voltage battery stack and the 12 V chassis ground. The 4+2 channel count matches typical SPI interfaces between the AFE and master, plus two dedicated fault and wakeup lines. Its reinforced isolation rating and 85 kV/µs CMTI survive the high dV/dt of the inverter switching on the same HV bus, while the -55°C to +125°C operating range covers under-hood automotive environments.
Рекомендуется
Isolated UART/USB Bridge for Industrial Gateways
Industrial IoT gateways often need isolated USB or UART links to isolated sensor stacks in hazardous or high-noise industrial settings. The ISO7762FDBQR's 4 forward and 2 reverse channels support full-duplex UART (TXD, RXD, RTS, CTS) plus two handshake lines, isolated to VDE 0884-11. The 100 Mbps speed exceeds USB full-speed (12 Mbps) by 8x, future-proofing the design for higher-rate sensor buses. The SSOP-16 footprint integrates cleanly into compact gateway modules where board space is constrained.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для ISO7762FDBQR — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | ISO7762DBQR | ISO7742DBQR | ISO7741DBQR | ISO7041FDBQR | ADuM260NARWZ |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices |
| Package | 16-SSOP (DBQ) | 16-SSOP (DBQ) - same | 16-SSOP (DBQ) - same | 16-SSOP (DBQ) - same | 16-SSOP (DBQ) - same | 16-SOIC Wide-Body (RW-16) - different |
| Number of Channels | 6 (4F/2R) | 6 (4F/2R) | 4 (2F/2R) | 4 (3F/1R) | 1 (1F/0R) | 6 (4F/2R) |
| Data Rate | 100 Mbps | 100 Mbps | 25 Mbps | 25 Mbps | 1 Mbps | 150 Mbps |
| Isolation Voltage (UL 1577) | 3000 Vrms (DBQ) | 3000 Vrms | 3000 Vrms | 3000 Vrms | 3000 Vrms | 5000 Vrms (wide-body) |
| CMTI (minimum) | 85 kV/µs | 85 kV/µs | 25 kV/µs | 25 kV/µs | 25 kV/µs | 100 kV/µs |
| Default Output Level | Low (F option) | High | High | Low (F option) | Low (F option) | High |
| Propagation Delay (typ) | 12 ns | 12 ns | 16 ns | 16 ns | 50 ns | 13 ns |
| Supply Voltage Range | 3 V to 5.5 V | 3 V to 5.5 V | 3 V to 5.5 V | 3 V to 5.5 V | 3 V to 5.5 V | 1.8 V to 5 V |
Ключевые отличия
- Highest CMTI in 16-SSOP digital isolator family (против ISO7742DBQR)
- 100 Mbps vs 25 Mbps data rate (против ISO7742DBQR)
- F-option default-low output for fail-safe behavior (против ISO7762DBQR (default-high))
- Reinforced VDE 0884-11 insulation rating (против ADuM260NARWZ (Analog Devices))
Заметки по проектированию
Place 0.1 µF + 1 µF ceramic bypass capacitors as close as possible to both VDD1 (pin 1) and VDD2 (pin 16) pins. The two ground pins GND1 (pin 8) and GND2 (pin 9) must be referenced to their respective side grounds with low-inductance vias. Power-up sequencing between VDD1 and VDD2 does not matter for functional operation, but both supplies must be within the 3.0 V to 5.5 V range for output validity.
Maintain a minimum 4 mm clearance (per UL 1577) and 8 mm creepage (per IEC 60747-17) between side-1 and side-2 copper traces and component pads on the PCB. The 16-SSOP (DBQ) package is rated at 3000 Vrms basic insulation; if you need reinforced isolation, choose the DW (16-SOIC wide-body) variant. Avoid running side-1 and side-2 traces in parallel across the isolation barrier to minimize coupling.
Do not place low-ESR decoupling capacitors on the wrong side - VDD1 and VDD2 belong to different galvanic domains. Do not exceed 5.5 V on either supply; permanent damage to the capacitive isolation barrier will result. The F-option (default-low) outputs do not have a disable pin - if you need tri-state behavior, gate the input side with the host controller's logic-enable signal before driving the isolator input.
For high-speed SPI (>20 MHz) the 100 Mbps data rate of the ISO7762FDBQR supports up to 50 MHz SPI clocks. For SPI above 50 MHz, consider the ISO7721 (200 Mbps). Series resistors (22-33 Ω) on the input side can dampen transmission-line ringing when driving long PCB traces. Match trace lengths on side-1 and side-2 channel pairs to within 2 mm to minimize channel-to-channel skew beyond the 2 ns datasheet limit.
Информация о соответствии
RoHS and REACH compliant per TI product page; UL 1577 (3000 Vrms); VDE 0884-11 reinforced insulation; TUV, CQC certified. Not AEC-Q100 qualified - use ISO7762FDBQ-Q1 for AEC-Q100 automotive designs.
