ISO7762FDWR - 6-Ch Reinforced Digital Isolator, 5kVrms, 100Mbps | TI
料号： ISO7762FDWR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4.5 | $4.50 |
| 10 | $3.96 | $39.60 |
| 100 | $3.46 | $346.00 |
| 500 | $3.1 | $1,550.00 |
| 1,000 | $2.74 | $2,740.00 |
ISO7762FDWR 概述
A digital isolator is a semiconductor device that transfers logic signals across an galvanically-isolated barrier using an on-chip transformer or high-voltage capacitor coupling, replacing optocouplers with higher speed, lower power, tighter channel-to-channel matching, and longer operational life. ISO7762FDWR belongs to the digital isolator -> signal isolator -> isolation IC -> interface IC hierarchy, and within TI's portfolio is part of the ISO77xx reinforced-isolation family that targets IEC 60747-17 basic and reinforced insulation systems.
Key specifications include a maximum data rate of 100 Mbps (NRZ), propagation delay of 11 ns typical with 2.5 ns channel-to-channel skew, 1.5 pF typical low input capacitance, and a default output low state when input power is removed. The wide-body SOIC package provides 8 mm of creepage/clearance, supporting 5000 Vrms isolation per UL 1577, IEC 60747-17 reinforced VGB, and reinforced insulation ratings required for industrial motor drives, solar inverters, and medical equipment.
The architecture uses TI's silicon-oxide (SiO2) capacitive isolation barrier with an integrated OOK-modulated carrier, providing robust CMTI immunity and very low EMI emissions. The device operates from a single 2.25 V to 5.5 V supply on each side and supports level translation without external components. Internal under-voltage lockout (UVLO) on both supply rails prevents indeterminate outputs during power-up/power-down transients, a critical requirement for functional-safety systems.
Typical uses are isolated SPI/UART interfaces between microcontrollers and gate drivers, isolated gate-drive signals for IGBT/MOSFET power stages in motor drives and solar inverters, isolated analog front-end to ADC links in factory-automation controllers, and reinforced isolation in medical patient-monitoring equipment per IEC 60601-1. The DW wide-body SOIC package ensures the 8 mm creepage required for reinforced insulation at 250 V working voltage or higher.
When designing with ISO7762FDWR, place 0.1µF + 10µF decoupling capacitors close to each VCC pin, route the input and output channels in separated PCB regions to maximize creepage, and pair the device with isolated gate drivers such as TI ISO5451/ISO5851 for IGBT/PW/SiC power stages. For CAN/RS-isolated nodes, consider ISO7762 plus an external CAN transceiver like TCAN334 or TCAN337 for a complete isolated bus segment.
This page synthesizes distributor pricing, drop-in alternatives within the same 16-SOIC (DW) package, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： ISO7762FDWR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ISO7762FDWR （相同外形与封装尺寸） ——差异在于 Package, Maximum Data Rate, Common-Mode Transient Immunity (CMTI), MSL Level, Number of Channels.
快速对比工具——选择替代料号进行并排对比：
ISO7762FDW
✅ 直接替换📋 参考替代料（不在目录中）
ISO7761FDWR
✅ 直接替换📋 参考替代料（不在目录中）
ISO7760FDWR
✅ 直接替换📋 参考替代料（不在目录中）
ISO7763FDWR
✅ 直接替换✓ 有现货
$2.5 / 个
查看数据手册 →ISO7742FDWR
✅ 直接替换📋 参考替代料（不在目录中）
ISO7762FDWR 规格参数
| Isolation Type | Capacitive Coupling (SiO2) |
| Number of Channels | 6 |
| Channel Direction | 4 Forward, 2 Reverse (4/2) |
| Isolation Voltage (RMS) | 5000 Vrms |
| Maximum Data Rate | 100 Mbps |
| Common-Mode Transient Immunity (CMTI) | 85 kV/us (minimum) |
| Propagation Delay (typ) | 11 ns |
| Channel-to-Channel Skew | 2.5 ns (max) |
| Input Supply Voltage Range (each side) | 2.25 V to 5.5 V |
| Output Supply Voltage Range (each side) | 2.25 V to 5.5 V |
| Default Output State (no VCC1) | Low |
| UVLO | Yes (both sides) |
| 工作温度范围 | -55C to +125C |
| 封装 | 16-pin SOIC Wide-Body (DW) - 7.50mm width |
| 安装类型 | Surface Mount |
| Creepage/Clearance | 8 mm (DW package) |
| Safety Approvals | UL 1577, IEC 60747-17 (reinforced), VDE 033 60 (reinforced) |
| MSL 等级 | 2 |
| RoHS 状态 | Compliant |
| Lead-Free | Yes |
ISO7762FDWR 引脚配置
| 引脚 1 | VDD1 — Side 1 power supply, 2.25V to 5.5V |
| 引脚 2 | GND1 — Side 1 ground reference |
| 引脚 3 | IN1 — Side 1 input channel 1 (forward to side 2) |
| 引脚 4 | IN2 — Side 1 input channel 2 (forward to side 2) |
| 引脚 5 | IN3 — Side 1 input channel 3 (forward to side 2) |
| 引脚 6 | IN4 — Side 1 input channel 4 (forward to side 2) |
| 引脚 7 | IN5 — Side 1 input channel 5 (reverse from side 2) |
| 引脚 8 | IN6 — Side 1 input channel 6 (reverse from side 2) |
| 引脚 9 | NC — Not connected (per datasheet) |
| 引脚 10 | OUT1 — Side 2 output channel 1 (from IN1) |
| 引脚 11 | OUT2 — Side 2 output channel 2 (from IN2) |
| 引脚 12 | OUT3 — Side 2 output channel 3 (from IN3) |
| 引脚 13 | OUT4 — Side 2 output channel 4 (from IN4) |
| 引脚 14 | OUT5 — Side 2 output channel 5 (from IN5) |
| 引脚 15 | GND2 — Side 2 ground reference |
| 引脚 16 | VDD2 — Side 2 power supply, 2.25V to 5.5V |
典型应用
ISO7762FDWR 适用于 6 应用s: Isolated Gate Driver Interface in Motor Drives, Isolated SPI/UART Communication, Solar Inverter String Monitoring, Medical Patient Monitoring Equipment, Industrial Fieldbus Isolation (RS-485/CAN), EV Battery Management System (BMS) Isolation.
Isolated Gate Driver Interface in Motor Drives
The ISO7762FDWR provides reinforced isolation between a low-voltage microcontroller and high-voltage gate drivers in industrial motor-drive systems. The 4 forward channels carry PWM signals to gate drivers (e.g., TI ISO5851DWR) while the 2 reverse channels carry fault feedback to the MCU. The 85 kV/us CMTI ensures signal integrity during IGBT switching transients where dV/dt can exceed 50 kV/us. The 5000 Vrms reinforced isolation and 8 mm creepage support 600-690 V AC bus voltages per IEC 61800-5-1. Place 0.1 uF + 10 uF ceramic decoupling capacitors close to each VCC pin and route input/output traces on opposite PCB sides to maximize creepage.
推荐
Isolated SPI/UART Communication
The ISO7762FDWR isolates SPI or UART links between a host processor and a remote sensor or HMI module in industrial control and factory-automation systems. The 100 Mbps data rate supports SPI clocks up to 40 MHz (4-wire SPI with 4 forward channels) plus 2 reverse channels for MISO/INT feedback. The 2.25-5.5 V supply range on each side enables level translation (e.g., 3.3 V MCU to 5 V sensor). The 11 ns typical propagation delay and 2.5 ns skew maintain SPI timing margins for high-throughput ADC reads. The reinforced isolation protects the host processor from ground loops in noisy industrial environments.
推荐
Solar Inverter String Monitoring
The ISO7762FDWR provides reinforced isolation between the high-voltage DC string monitoring board and the low-voltage MPPT controller in string-inverter systems. The 4/2 channel split supports 4 high-voltage analog/digital feedback signals plus 2 control signals to the high-voltage side. The 5000 Vrms rating and 8 mm creepage support 1500 V DC string arrays per IEC 62109. The 85 kV/us CMTI ensures reliable operation near the high-frequency PWM switching of the MPPT stage. The wide temperature range (-55C to +125C) supports outdoor inverter environments with passive cooling.
推荐
Medical Patient Monitoring Equipment
The ISO7762FDWR provides patient-to-operator isolation in IEC 60601-1 medical devices such as patient monitors, infusion pumps, and diagnostic imaging. The 5000 Vrms reinforced isolation plus IEC 60747-17 reinforced certification supports 2 MOPP (Means of Patient Protection) requirements. The 100 Mbps data rate handles high-resolution ECG/EEG/SPO2 waveform data streams. The wide-body 16-SOIC (DW) package with 8 mm creepage meets IEC 60601-1 creepage/clearance for CF-type (cardiac floating) applied parts. The low EMI emissions are critical for sensitive analog measurement channels.
推荐
Industrial Fieldbus Isolation (RS-485/CAN)
The ISO7762FDWR isolates RS-485 or CAN bus transceivers from the host processor in industrial fieldbus segments. The 4 forward channels carry TXD/RTS/EN plus TXD; the 2 reverse channels carry RXD/CTS from the transceiver. The 100 Mbps data rate easily supports 12 Mbps CAN-FD and 50 Mbps RS-485. The 5000 Vrms reinforced isolation protects against ground-potential differences in factory-floor installations with long cable runs. The device pairs with TI TCAN334 (CAN) or THVD14xx (RS-485) transceivers for a complete isolated bus segment.
推荐
EV Battery Management System (BMS) Isolation
The ISO7762FDWR provides reinforced isolation between the high-voltage battery cell monitoring IC (e.g., TI BQ79631) and the low-voltage MCU in traction-battery systems. The 4/2 channel split supports SPI (4 forward) plus interrupt/diagnostic feedback (2 reverse). The 5000 Vrms reinforced isolation and 8 mm creepage support 800 V battery packs. The AEC-Q100 qualified variants (ISO7761BFDWRQ1) target automotive-grade reliability. The 85 kV/us CMTI ensures reliable operation near the high-frequency switching of the traction inverter. The -55C to +125C range supports underbody BMS environments.
推荐
推荐产品汇总
工程参考数据： ISO7762FDWR ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ISO7762FDW | ISO7761FDWR | ISO7760FDWR | ISO7763FDWR | ISO7742FDWR |
|---|---|---|---|---|---|---|
| Package | 16-SOIC (DW) wide-body 7.50mm | 16-SOIC (DW) - same | 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 | Texas Instruments |
| Channel Count | 6 | 6 | 6 | 6 | 6 | 6 |
| Direction (Fwd/Rev) | 4/2 | 4/2 (same) | 5/1 | 6/0 | 3/3 | 4/2 (same) |
| Isolation Voltage | 5000 Vrms | 5000 Vrms | 5000 Vrms | 5000 Vrms | 5000 Vrms | 3000 Vrms (basic) |
| Max Data Rate | 100 Mbps | 100 Mbps | 100 Mbps | 100 Mbps | 100 Mbps | 100 Mbps |
| CMTI | 85 kV/us | 85 kV/us | 85 kV/us | 85 kV/us | 85 kV/us | 85 kV/us |
| Prop Delay (typ) | 11 ns | 11 ns | 11 ns | 11 ns | 11 ns | 11 ns |
| Unit Price (qty 100, USD) | 3.46 | 3.30 (tube format) | 3.46 | 3.46 | 3.46 | 2.40 (basic isolation) |
关键差异点
- Reinforced isolation at 5000 Vrms vs basic isolation at 3000 Vrms （对比 ISO7742FDWR)
- High 100 Mbps data rate vs slower 25-50 Mbps alternatives （对比 ISO7721FDWR)
- 6 channels with 4/2 directionality vs 2-channel alternatives （对比 ISO7721DWR)
设计说明
Place 0.1 uF + 10 uF X7R ceramic decoupling capacitors within 2 mm of each VCC pin. The wide-body 16-SOIC (DW) package provides 8 mm creepage/clearance, which is required for 5000 Vrms reinforced isolation - do not place PCB traces, vias, or solder pads under the package body or in the creepage gap between VCC1/GND1 and VCC2/GND2. Keep side 1 traces and side 2 traces on opposite PCB regions separated by at least 8 mm of clearance to avoid contamination of the isolation barrier.
Do not connect side 1 and side 2 ground planes together - this defeats the isolation barrier and creates a ground loop. Each side must have its own dedicated ground reference. The default output state (when input power is removed) is LOW - if your application requires HIGH default, consider ISO7762 with the F suffix (ISO7762F) which has the inverted default. Always verify the F-suffix variant when ordering; the F-suffix changes default output polarity but otherwise is pin-compatible.
The wide-body SOIC (DW) package has theta_JA of approximately 70-90 C/W depending on PCB layout. Estimated: at ambient 85C and full power-on, junction rise is ~5C. The wide-body SOIC has no exposed thermal pad, so copper pours under the pins and on opposite PCB sides are the main heat-dissipation paths. For higher-power applications, ensure at least 100 sq mm of copper pour on each PCB side to keep junction temperature within the -55C to +125C operating range.
Route input and output traces on opposite PCB layers or with minimum 8 mm clearance to maximize creepage. Place the ISO7762FDWR as close as possible to the isolation barrier (e.g., near the high-voltage connector or transformer). Add stitching ground vias on both sides of the isolation gap to reduce EMI emissions. Refer to TI ISO7762 datasheet section on PCB Design for the recommended layout pattern, including the 4-layer stackup with VCC/GND planes separated by the isolation barrier.
