ADUM3220ARZ - 4A Dual-Channel Isolated Gate Driver | Analog Devices
MPN: ADUM3220ARZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 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 |
Drop-in alternatives for ADUM3220ARZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADUM3221ARZ
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View Datasheet →ADUM3220BRZ
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ADUM3220CRZ
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ADUM3220ARZ-RL7
✅ Drop-In✓ In Stock
$2.19 / Unit
View Datasheet →ADUM3220ARZ-RL
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ADUM3220ARZ Maximum Ratings & Electrical Characteristics
| 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) |
| Package | 8-SOIC (0.154", 3.90mm Width) |
| Technology | iCoupler (magnetic coupling) |
| Operating Temperature | -40°C to +125°C |
| Supply Voltage (Input Side) | [DATA_NEEDED: VDD1 range] |
| Supply Voltage (Output Side) | [DATA_NEEDED: VDD2 range] |
| Undervoltage Lockout (UVLO) | 4.1 V nominal |
| RoHS Status | Compliant |
| Lead Free Status | Lead Free |
| Mounting Type | Surface Mount |
| Data Rate | N/A (gate driver) |
ADUM3220ARZ Pin Configuration
| Pin 1 | VDD1 — Input supply voltage |
| Pin 2 | GND1 — Input ground |
| Pin 3 | VIA — Input signal for channel A |
| Pin 4 | VIB — Input signal for channel B |
| Pin 5 | GND2 — Output ground |
| Pin 6 | VOA — Output drive for channel A |
| Pin 7 | VOB — Output drive for channel B |
| Pin 8 | VDD2 — Output supply voltage |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
ADUM3220ARZ is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for ADUM3220ARZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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 |
Key Differentiators
- 4 A peak output current (vs ADUM3221ARZ)
- 2500 Vrms isolation (vs ADUM4221ARWZ)
- 8-SOIC package (vs ADUM4221BRWZ)
Design Notes
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.
Compliance Information
RoHS compliant and lead-free per DigiKey. Other compliance data not specified in the provided sources.
