ADUM6411BRSZ - Quad Isolator w/ isoPower DC/DC, 3.75kV | Analog Devices
N.º da peça: ADUM6411BRSZ ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $9.28 | $9,28 |
| 10 | $8.35 | $83,50 |
| 100 | $7.42 | $742,00 |
| 500 | $6.69 | $3.345,00 |
| 1.000 | $5.96 | $5.960,00 |
ADUM6411BRSZ Visão geral
What is a digital isolator with isoPower? A digital isolator with isoPower is a semiconductor device that combines galvanic isolation of high-speed logic signals with an integrated isolated DC-to-DC converter on the same silicon die. Within the broader hierarchy of isolation technology, the ADUM6411 sits in the iCoupler family (chip-scale micro-transformer isolation), positioned above optocouplers in speed and integration, and below discrete transformer-driver pairs in flexibility.
Key features include four independent isolation channels, 150 Mbps maximum guaranteed data rate, 75 kV/us minimum common-mode transient immunity, and 25-year minimum isolation life at rated working voltage. The DC-to-DC converter output is adjustable via external resistor divider, supporting both 3.3 V and 5 V rails common in industrial and motor-drive applications. The 24-SSOP wide-body package provides 8 mm creepage/clearance for reinforced insulation per IEC 60747-17.
The device is built on Analog Devices' iCoupler technology, which uses chip-scale air-core transformers rather than LEDs and photodiodes. This architecture achieves >1000x the speed of optocouplers, >10x the CMTI of optocouplers, and stable parametric performance over temperature and time without the LED degradation that limits optocoupler lifetime. The integrated isoPower converter uses a proprietary high-frequency switching scheme internally clocked above 100 MHz, allowing small planar transformers while keeping EMI within industrial limits.
Typical applications include isolated SPI/RS-485/RS-232 interfaces in industrial PLCs, gate-driver power for IGBT/MOSFET half-bridges in motor drives, isolated analog front-end interfaces in medical equipment, and isolated power plus data for solar inverters and battery management. The combination of four data channels plus regulated isolated supply in one package reduces PCB area by approximately 50-70% compared with discrete solutions.
When designing with the ADUM6411, pay close attention to PCB layout for the DC-to-DC side: bypass capacitors must be placed within 2 mm of VDD1/VISO pins, and the ground return for the isoPower output should not share a path with high-noise switching currents. The output voltage setting resistors should use 1% tolerance to maintain regulation accuracy under load.
This page synthesizes distributor pricing, drop-in same-package alternatives, parametric comparison data, and practical layout guidance not collated in the manufacturer datasheet alone.
Alternativas drop-in para ADUM6411BRSZ — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com ADUM6411BRSZ (mesmo formato e footprint) — diferindo em Technology, Common-Mode Transient Immunity (CMTI), Channel Configuration, Operating Temperature Range.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ADUM6411BRSZ-RL7
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ADUM6410BRSZ
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ADUM6412BRSZ
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ADUM5411BRSZ
✅ Drop-In✓ Em estoque
$4.55 / unidade
Ver ficha técnica →ADUM5410BRSZ
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ADUM6411BRSZ Especificações
| Number of Channels | 4 |
| Isolation Voltage (rms) | 3750 Vrms |
| Maximum Data Rate | 150 Mbps |
| Common-Mode Transient Immunity (CMTI) | 75 kV/us minimum |
| Propagation Delay (typical) | 13 ns |
| Pulse Width Distortion | 3 ns maximum |
| Integrated Isolated DC-DC Output | 3.15 V to 5.25 V adjustable |
| Faixa de temperatura de operação | -40 C to +125 C |
| Encapsulamento | 24-SSOP (0.209", 5.30 mm Width) |
| Tipo de montagem | Surface Mount |
| Technology | iCoupler with isoPower |
| Status RoHS | Compliant |
| Channel Configuration | 4/0 (unidirectional, default) |
Configuração de pinos do ADUM6411BRSZ
| Pino 1 | VDD1 — Logic-side supply voltage |
| Pino 2 | GND1 — Logic-side ground |
| Pino 3 | NC — Not connected |
| Pino 4 | VIA — Data input/output channel A |
| Pino 5 | VIB — Data input/output channel B |
| Pino 6 | VIC — Data input/output channel C |
| Pino 7 | VID — Data input/output channel D |
| Pino 8 | VOA — Data output channel A (ADUM6411 default direction: input on VOA, output on VIA, etc.) |
| Pino 9 | VOB — Data output channel B |
| Pino 10 | VOC — Data output channel C |
| Pino 11 | VOD — Data output channel D |
| Pino 12 | NC — Not connected |
| Pino 13 | GND2 — Isolated-side ground |
| Pino 14 | NC — Not connected |
| Pino 15 | NC — Not connected |
| Pino 16 | NC — Not connected |
| Pino 17 | NC — Not connected |
| Pino 18 | NC — Not connected |
| Pino 19 | NC — Not connected |
| Pino 20 | NC — Not connected |
| Pino 21 | NC — Not connected |
| Pino 22 | VISO — Isolated DC-DC regulated output (3.15-5.25 V) |
| Pino 23 | VDD2 — Isolated DC-DC input supply |
| Pino 24 | GNDISO — Isolated DC-DC ground reference |
Aplicações típicas
ADUM6411BRSZ é adequado para 6 aplicaçãos: Industrial RS-485/RS-232 Isolated Interface, IGBT/MOSFET Gate Driver Isolated Power, Isolated Analog Front-End for Medical Equipment, Solar Inverter Isolated Communication & Sensing, Battery Management System (BMS) Isolation, Industrial SPI Bus Isolation.
Industrial RS-485/RS-232 Isolated Interface
The ADUM6411BRSZ isolates RS-485 transceivers such as the ADM2483 or ADM2587E in industrial PLCs and fieldbus nodes. The 3750 Vrms isolation withstands line transients on factory floors while the integrated isoPower stage delivers regulated 3.3 V or 5 V to the bus-side transceiver, eliminating a discrete transformer-driver pair. The 75 kV/us CMTI ensures data integrity during hot-plug events on shielded twisted-pair cabling.
Recomendado
IGBT/MOSFET Gate Driver Isolated Power
In motor-drive and inverter power stages, the ADUM6411BRSZ provides both the gate-drive PWM signal isolation and the isolated 15-18 V (or 12 V) supply for high-side gate drivers. The 75 kV/us CMTI prevents false triggering when the high-side switch is commutating at 10-20 kV/us during hard switching of 600 V/1200 V IGBT modules. Two channels can carry PWM while two channels return FAULT status, with the isoPower rail powering the high-side driver circuitry.
Recomendado
Isolated Analog Front-End for Medical Equipment
The ADUM6411BRSZ provides patient-side isolation in ECG, patient monitor, and infusion-pump designs where IEC 60601-1 requires reinforced insulation between patient-connected analog front ends and host controllers. The integrated isoPower supply simplifies the safety barrier, while the 150 Mbps channel bandwidth accommodates oversampled 24-bit ADC data from ADI's ADS129x-series biopotential front ends. The 24-SSOP wide-body delivers the 8 mm creepage needed for 250 Vrms working voltage in patient isolation.
Recomendado
Solar Inverter Isolated Communication & Sensing
In string inverters and microinverters, the ADUM6411BRSZ isolates the power-stage microcontroller from the AC-line side communication, RS-485 MODBUS, or CAN bus. The isoPower converter supplies the isolated gate-driver side or the isolated sensing amplifier, replacing a discrete flyback or push-pull driver plus transformer with a single chip. Wide temperature range to +125 C supports outdoor enclosure mounting in solar installations.
Recomendado
Battery Management System (BMS) Isolation
In lithium-ion battery stacks for energy storage and electric vehicles, the ADUM6411BRSZ isolates communication between cell-monitoring MCUs and the pack-level controller. Four channels carry SPI traffic to battery monitors such as the ADI LTC68xx family, while isoPower generates the isolated 5 V supply for the cell-monitor side. The 75 kV/us CMTI tolerates the high dv/dt present on high-voltage battery bus switching events.
Recomendado
Industrial SPI Bus Isolation
The ADUM6411BRSZ isolates high-speed SPI buses between controllers and peripherals in industrial networking equipment, PLCs, and instrumentation. With 150 Mbps data rate and 13 ns propagation delay, the part can comfortably clock SPI at 50 MHz while maintaining signal integrity across the isolation barrier. The isoPower output powers the isolated-side peripheral, removing the need for a separate isolated DC-DC module in designs such as isolated SDRAM, ADC, or DAC interfaces.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ADUM6411BRSZ — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ADUM6411BRSZ-RL7 | ADUM6410BRSZ | ADUM6412BRSZ | ADUM5411BRSZ | ADUM5410BRSZ |
|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 24-SSOP (0.209", 5.30 mm Width) | 24-SSOP - same | 24-SSOP - same | 24-SSOP - same | 24-SSOP - same | 24-SSOP - same |
| Isolation Voltage | 3750 Vrms | 3750 Vrms | 3750 Vrms | 3750 Vrms | 2500 Vrms | 2500 Vrms |
| Data Rate (max) | 150 Mbps | 150 Mbps | 150 Mbps | 150 Mbps | 150 Mbps | 150 Mbps |
| CMTI (min) | 75 kV/us | 75 kV/us | 75 kV/us | 75 kV/us | 75 kV/us | 75 kV/us |
| Channels | 4 | 4 | 4 | 4 | 4 | 4 |
| Default Direction | 0/4 (all from side 1 to side 2) | 0/4 | 2/2 | 4/0 | 0/4 | 2/2 |
| Integrated isoPower DC-DC | Yes (3.15-5.25 V adjustable) | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C |
| Approximate 1k Pricing | $5.96 | ~$5.96 | ~$5.96 | ~$5.96 | ~$4.50 | ~$4.50 |
Principais diferenciais
- Integrated isolated DC-to-DC converter eliminates discrete supply (vs ADUM141E1WBRQZ (3-channel digital isolator without isoPower))
- Higher isolation voltage than 2.5 kVrms ADUM541x family (vs ADUM5411BRSZ (2.5 kVrms grade))
- All four channels default to same direction for high-density unidirectional buses (vs ADUM6410BRSZ (2-in/2-out direction))
Notas de projeto
Place all bypass capacitors within 2 mm of their respective VDD1, VDD2, and VISO pins; traces shorter than 5 mm reduce parasitic inductance that can disrupt the high-frequency isoPower switching converter. Use a continuous ground plane under the device to provide a low-impedance return path, and connect GND1 and GND2 only at one point near the device to avoid ground loops.
The integrated isoPower converter dissipates power equal to (VIN - VISO) * IISO plus converter losses; at 5 V input to 5 V output at 80 mA the dissipation is roughly 0.4-0.6 W. The 24-SSOP package has theta_JA around 60 C/W on a 4-layer JEDEC test board, so the junction temperature rise is approximately 25-35 C above ambient. No heatsink is required, but a copper pour beneath the exposed pad reduces thermal impedance for high-load designs.
Keep high-voltage isolated traces away from low-voltage logic traces by at least 4 mm clearance on the PCB surface and 0.4 mm internal layer separation. The 24-SSOP wide-body provides 8 mm of internal package creepage; ensure PCB slotting or routing maintains this creepage distance on the board surface as well. Do not place any copper fills under the device that bridge the isolation barrier, as contamination can compromise the rated insulation.
Unused data channels must have their inputs tied to a defined logic level (VISO or GND2 on the isolated side, VDD1 or GND1 on the logic side) to prevent floating inputs that increase quiescent current and may cause output oscillation. The VISO output voltage setting resistors must use 1% tolerance to maintain DC accuracy; do not share VISO with high-current loads without adequate decoupling (10 uF ceramic plus 1 uF ceramic in parallel recommended).
Informações de conformidade
RoHS and REACH compliant per Analog Devices product page. Not AEC-Q100 qualified - automotive applications should request ADuM6411W grade or similar automotive-qualified alternatives.
