ADUM3220ARZ - 4A Dual-Channel Isolated Gate Driver | Analog Devices
N.º da peça: ADUM3220ARZ ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $3.42 | $3,42 |
| 10 | $3.08 | $30,80 |
| 100 | $2.74 | $274,00 |
| 500 | $2.47 | $1.235,00 |
| 1.000 | $2.2 | $2.200,00 |
ADUM3220ARZ Visão geral
Isolated gate drivers are essential components in power electronics systems where the control circuitry must be electrically isolated from the high-voltage power stage. They transmit switching signals across an isolation barrier while providing sufficient drive current to charge and discharge the gate capacitance of power switches. The ADUM3220ARZ integrates the isolation and driver functions in a single IC, eliminating the need for external pulse transformers and simplifying PCB design.
Key features of the ADUM3220ARZ include a 4 A peak output current, precise timing with a maximum propagation delay of 60 ns, and channel-to-channel matching of 5 ns. It operates over a wide supply voltage range and supports high junction temperatures up to 125°C. The device is RoHS compliant and lead-free, meeting modern environmental standards.
The ADUM3220ARZ uses iCoupler technology, which employs chip-scale transformers to achieve isolation. This approach offers superior performance compared to optocouplers, including higher data rates, lower power consumption, and better timing accuracy. The driver's output stages are designed to deliver high peak current for fast switching, reducing switching losses in power converters.
Typical applications include isolated switch-mode power supplies, motor drives, solar inverters, and industrial automation systems. The ADUM3220ARZ is particularly well-suited for driving IGBTs and MOSFETs in half-bridge or full-bridge configurations, where its dual-channel architecture and precise timing ensure reliable operation.
When designing with the ADUM3220ARZ, it is important to provide adequate decoupling on the input and output supplies and to minimize parasitic inductance in the gate drive loop. Proper PCB layout is critical to achieve the specified timing and isolation performance.
Alternativas drop-in para ADUM3220ARZ — 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 ADUM3220ARZ (mesmo formato e footprint) — diferindo em Technology, Package, Isolation Voltage, Number of Channels, RoHS Status.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ADUM3221ARZ
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$1.52 / unidade
Ver ficha técnica →ADUM3220BRZ
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
ADUM3220CRZ
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
ADUM3220ARZ-RL7
✅ Drop-In✓ Em estoque
$2.19 / unidade
Ver ficha técnica →ADUM3220ARZ-RL
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ADUM3220ARZ Classificações máximas e características elétricas
| Number of Channels | 2 |
| Peak Output Current | 4 A |
| Isolation Voltage | 2500 Vrms |
| Propagation Delay | 60 ns (max) |
| Channel-to-Channel Matching | 5 ns (max) |
| Encapsulamento | 8-SOIC (0.154", 3.90mm Width) |
| Technology | iCoupler (magnetic coupling) |
| Temperatura de operação | -40°C to +125°C |
| Undervoltage Lockout (UVLO) | 4.1 V nominal |
| Status RoHS | Compliant |
| Lead Free Status | Lead Free |
| Tipo de montagem | Surface Mount |
| Taxa de dados | N/A (gate driver) |
Configuração de pinos do ADUM3220ARZ
| Pino 1 | VDD1 — Input supply voltage |
| Pino 2 | GND1 — Input ground |
| Pino 3 | VIA — Input signal for channel A |
| Pino 4 | VIB — Input signal for channel B |
| Pino 5 | GND2 — Output ground |
| Pino 6 | VOA — Output drive for channel A |
| Pino 7 | VOB — Output drive for channel B |
| Pino 8 | VDD2 — Output supply voltage |
Aplicações típicas
ADUM3220ARZ é adequado para 6 aplicaçãos: Isolated Switch-Mode Power Supplies, Motor Drives, Solar Inverters, Industrial Automation, Electric Vehicle Chargers, Uninterruptible Power Supplies (UPS).
Isolated Switch-Mode Power Supplies
The ADUM3220ARZ is ideal for isolated switch-mode power supplies (SMPS) where the control circuitry must be isolated from the high-voltage power stage. Its 4 A peak output current and 60 ns propagation delay enable efficient driving of power MOSFETs in flyback, forward, and half-bridge topologies. The 2500 Vrms isolation ensures safety and reduces noise coupling. In a typical SMPS, the ADUM3220ARZ drives the primary-side switch, while the secondary-side control loop is isolated. The fast switching reduces losses and improves efficiency. The dual-channel configuration allows driving both high-side and low-side switches in synchronous rectifiers, simplifying the design and reducing component count.
Recomendado
Motor Drives
In motor drive applications, the ADUM3220ARZ provides isolated gate drive for IGBTs and MOSFETs in inverter stages. Its 4 A peak current ensures fast turn-on and turn-off, reducing switching losses and electromagnetic interference. The 60 ns propagation delay and 5 ns channel-to-channel matching are critical for precise dead-time control in half-bridge and full-bridge configurations. The wide operating temperature range (-40°C to +125°C) suits industrial motor drives. The isolation barrier protects the microcontroller from high-voltage transients and ground loops. The ADUM3220ARZ can be used in variable frequency drives (VFDs), servo drives, and robotics, where reliable and efficient switching is essential.
Recomendado
Solar Inverters
The ADUM3220ARZ is well-suited for solar inverter applications, where it drives the power switches in DC-AC conversion stages. Its high output current and fast propagation delay enable efficient switching at high frequencies, improving the inverter's power density and efficiency. The 2500 Vrms isolation provides safety isolation between the PV panel side and the grid side, meeting safety standards. The dual-channel design is ideal for half-bridge and full-bridge topologies commonly used in string inverters and microinverters. The device's robust performance over temperature ensures reliable operation in outdoor environments. The ADUM3220ARZ helps reduce system cost by eliminating the need for external isolation components.
Recomendado
Industrial Automation
In industrial automation, the ADUM3220ARZ provides isolated gate drive for power devices in programmable logic controllers (PLCs), robotic arms, and factory automation equipment. Its 4 A peak output current and 60 ns propagation delay ensure reliable switching of IGBTs and MOSFETs in motor control and power supply modules. The isolation barrier protects sensitive control electronics from electrical noise and transients in industrial environments. The wide operating temperature range and RoHS compliance make it suitable for harsh conditions. The dual-channel configuration simplifies the design of half-bridge drivers, reducing component count and board space. The ADUM3220ARZ enhances system reliability and safety in industrial applications.
Recomendado
Electric Vehicle Chargers
The ADUM3220ARZ is used in electric vehicle (EV) chargers to drive power switches in AC-DC and DC-DC converters. Its high output current and fast switching speed enable efficient power conversion, reducing charging time and improving overall efficiency. The 2500 Vrms isolation provides safety isolation between the mains and the vehicle battery, meeting stringent safety standards. The device's wide operating temperature range (-40°C to +125°C) is suitable for automotive environments. The dual-channel design is ideal for bridgeless power factor correction (PFC) and full-bridge DC-DC converters. The ADUM3220ARZ helps achieve high power density and reliability in EV charging infrastructure.
Recomendado
Uninterruptible Power Supplies (UPS)
In UPS systems, the ADUM3220ARZ drives the power switches in the inverter and charger stages. Its 4 A peak output current and 60 ns propagation delay ensure efficient and reliable switching, critical for maintaining power quality. The isolation barrier protects the control circuitry from high-voltage transients and ground loops. The dual-channel design is suitable for half-bridge and full-bridge topologies used in online and line-interactive UPS. The wide operating temperature range and RoHS compliance make it suitable for various environments. The ADUM3220ARZ helps reduce system size and cost by integrating isolation and driver functions, improving overall UPS performance.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ADUM3220ARZ — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ADUM3221ARZ | ADUM4221ARWZ | ADUM4221BRWZ |
|---|---|---|---|---|
| Package | 8-SOIC | 8-SOIC | 16-SOIC | 16-SOIC |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Peak Output Current | 4 A | 4 A | 4 A | 4 A |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 5000 Vrms | 5000 Vrms |
| Propagation Delay | 60 ns | 60 ns | 60 ns | 60 ns |
| Channel-to-Channel Matching | 5 ns | 5 ns | 5 ns | 5 ns |
| UVLO Threshold | 4.1 V | 4.1 V | 4.1 V | 4.1 V |
| Operating Temperature | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C |
Principais diferenciais
- 4 A peak output current (vs ADUM3221ARZ)
- 2500 Vrms isolation (vs ADUM4221ARWZ)
- 8-SOIC package (vs ADUM4221BRWZ)
Notas de projeto
Place decoupling capacitors (0.1 µF and 10 µF) close to the VDD1 and VDD2 pins to ensure stable supply voltages. Use a solid ground plane under the device to minimize noise and parasitic inductance. Keep the gate drive loop (output pins to the power switch) as short as possible to reduce ringing and overshoot.
The ADUM3220ARZ can dissipate significant power when driving large gate charges at high frequencies. Ensure adequate copper area on the PCB for heat dissipation. The junction temperature must not exceed 125°C. For high-frequency operation, consider using a thermal relief pattern and possibly a heatsink.
Do not exceed the absolute maximum ratings for VDD1 and VDD2. Ensure the input signals are properly referenced to GND1 and have sufficient drive strength. Avoid floating input pins; tie unused inputs to GND1 or VDD1 as appropriate. Verify the UVLO threshold to ensure the driver is fully enabled before switching.
Informações de conformidade
RoHS compliant and lead-free per DigiKey. Other compliance data not specified in the provided sources.
