ADUM4220ARWZ-RL7 - Isolated 4A Dual Gate Driver | Analog Devices
MPN: ADUM4220ARWZ-RL7 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.85 | $4.85 |
| 10 | $4.36 | $43.60 |
| 100 | $3.88 | $388.00 |
| 500 | $3.49 | $1,745.00 |
| 1,000 | $3.1 | $3,100.00 |
ADUM4220ARWZ-RL7 Overview
Isolated gate drivers are essential components in power electronics systems where the control circuitry must be electrically isolated from high-voltage power stages. They transmit switching signals across an isolation barrier using magnetic coupling (iCoupler), which offers superior performance compared to optocouplers in terms of speed, reliability, and power consumption. The ADUM4220ARWZ-RL7 belongs to the family of isolated gate drivers, which are a subset of gate drivers, which in turn are part of power management ICs.
Key features include a maximum propagation delay of 60 ns, channel-to-channel matching of 5 ns, and a common-mode transient immunity (CMTI) of 100 kV/us. The device operates from a supply voltage of 4.5 V to 18 V on the input side and 4.5 V to 18 V on the output side, with an undervoltage lockout (UVLO) of 4.1 V nominal. The output stage can source and sink 4 A peak current, making it suitable for driving large capacitive loads.
The ADUM4220ARWZ-RL7 uses a transformer-based isolation architecture, which enables true galvanic isolation and voltage translation between input and output. This design provides high-speed operation with low propagation delay, ensuring precise timing in switching applications. The device also features a dead-time control input, allowing designers to adjust the delay between high-side and low-side outputs to prevent shoot-through current.
Typical applications include isolated switch-mode power supplies, motor drives, solar inverters, and industrial automation systems. The high CMTI and fast propagation delay make it ideal for high-frequency switching converters, while the 2500 Vrms isolation rating ensures safety in high-voltage environments.
When designing with this device, it is important to provide adequate decoupling on both the input and output supply pins, and to ensure that the PCB layout minimizes parasitic inductance in the gate drive loop. The dead-time control pin should be configured according to the switching frequency and load characteristics to optimize efficiency and reliability.
Drop-in alternatives for ADUM4220ARWZ-RL7 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ADUM4220ARWZ-RL7 (same form factor and footprint) — differing in Package, Isolation Voltage, Technology, Propagation Delay, Number of Channels.
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View Datasheet →ADUM4220ARWZ-RL7 Maximum Ratings & Electrical Characteristics
| Technology | iCoupler (magnetic isolation) |
| Number of Channels | 2 |
| Output Current (Peak) | 4 A |
| Isolation Voltage | 2500 Vrms |
| Propagation Delay (Max) | 60 ns |
| Channel-to-Channel Matching | 5 ns |
| Common-Mode Transient Immunity (CMTI) | 100 kV/us |
| Input Supply Voltage | 4.5 V to 18 V |
| Output Supply Voltage | 4.5 V to 18 V |
| Undervoltage Lockout (UVLO) | 4.1 V (nominal) |
| Package | 16-lead SOIC-W (wide body) |
| Operating Temperature Range | -40°C to +125°C |
| RoHS Status | Compliant |
| Mounting Type | Surface Mount |
| MSL Level | 1 |
ADUM4220ARWZ-RL7 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 | DT — Dead-time control input |
| Pin 6 | GND1 — Input ground |
| Pin 7 | NC — No connect |
| Pin 8 | NC — No connect |
| Pin 9 | VOA — Output for channel A |
| Pin 10 | GND2 — Output ground |
| Pin 11 | VOB — Output for channel B |
| Pin 12 | VDD2 — Output supply voltage |
| Pin 13 | GND2 — Output ground |
| Pin 14 | NC — No connect |
| Pin 15 | NC — No connect |
| Pin 16 | GND1 — Input ground |
Typical Applications
ADUM4220ARWZ-RL7 is suitable for 6 applications: Isolated Switch-Mode Power Supplies, Motor Drives, Solar Inverters, Industrial Automation, Electric Vehicle Chargers, Medical Power Supplies.
Isolated Switch-Mode Power Supplies
The ADUM4220ARWZ-RL7 is ideal for isolated SMPS topologies such as half-bridge and full-bridge converters. Its 4 A peak output current drives the gate capacitances of high-voltage MOSFETs, while the 2500 Vrms isolation provides safety between primary and secondary sides. The fast 60 ns propagation delay ensures minimal dead-time, improving efficiency at high switching frequencies. The high CMTI of 100 kV/us prevents false triggering during fast voltage transients, ensuring reliable operation in noisy power environments.
Recommended
Motor Drives
In motor drive applications, the ADUM4220ARWZ-RL7 provides isolated gate drive for IGBTs or MOSFETs in the inverter stage. The 4 A peak current ensures fast switching of large gate charges, reducing switching losses. The 2500 Vrms isolation protects the low-voltage control circuitry from the high-voltage DC bus. The wide operating temperature range of -40°C to +125°C makes it suitable for industrial motor drives operating in harsh environments. The channel-to-channel matching of 5 ns ensures balanced switching of high-side and low-side devices, minimizing harmonic distortion.
Recommended
Solar Inverters
The ADUM4220ARWZ-RL7 is well-suited for solar inverter applications, where galvanic isolation is required between the PV panel side and the grid side. Its 4 A output current drives the gate of power MOSFETs in the DC-AC conversion stage. The high CMTI ensures reliable operation in the presence of fast voltage transients caused by switching. The 2500 Vrms isolation rating meets safety requirements for photovoltaic systems. The low propagation delay enables high-frequency PWM operation, improving the inverter's efficiency and power density.
Recommended
Industrial Automation
In industrial automation, the ADUM4220ARWZ-RL7 is used in isolated gate drive circuits for programmable logic controllers (PLCs), robotics, and factory automation equipment. The device's robust isolation and high CMTI ensure reliable communication between control and power stages in electrically noisy environments. The 4 A peak output current allows direct driving of power switches without additional buffer stages. The wide temperature range and RoHS compliance make it suitable for industrial-grade products. The 16-lead SOIC-W package is compact and easy to assemble in automated manufacturing processes.
Recommended
Electric Vehicle Chargers
The ADUM4220ARWZ-RL7 is suitable for electric vehicle (EV) charger applications, where isolation is required between the AC input and DC output stages. The 4 A peak output current drives the gate of high-voltage SiC or GaN MOSFETs, enabling high-frequency switching for compact charger designs. The 2500 Vrms isolation rating provides safety isolation between the mains and the vehicle battery. The high CMTI ensures reliable operation in the presence of fast transients from the switching converter. The device's wide operating temperature range supports operation in automotive environments.
Recommended
Medical Power Supplies
In medical power supplies, the ADUM4220ARWZ-RL7 provides isolated gate drive for power switches in DC-DC converters. The 2500 Vrms isolation rating meets the safety requirements for medical equipment, ensuring patient and operator safety. The low propagation delay and high CMTI ensure stable operation in sensitive medical devices. The 4 A peak output current allows efficient driving of power MOSFETs, reducing power loss and improving thermal performance. The device's RoHS compliance and wide temperature range make it suitable for medical-grade products.
Recommended
Recommended Products Summary
Engineering reference data for ADUM4220ARWZ-RL7 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADUM3220ARZ-RL7 | ADUM3221ARZ-RL7 | ADUM3223ARWZ-RL7 | ADUM3224ARWZ |
|---|---|---|---|---|---|
| Package | 16-SOIC-W | 8-SOIC | 8-SOIC | 16-SOIC-W | 16-SOIC-W |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 2500 Vrms | 5000 Vrms | 2500 Vrms |
| Output Current (Peak) | 4 A | 4 A | 4 A | 4 A | 4 A |
| Propagation Delay (Max) | 60 ns | 60 ns | 60 ns | 60 ns | 60 ns |
| CMTI | 100 kV/us | 100 kV/us | 100 kV/us | 100 kV/us | 100 kV/us |
| Supply Voltage Range | 4.5 V to 18 V | 4.5 V to 18 V | 4.5 V to 18 V | 4.5 V to 18 V | 4.5 V to 18 V |
| Dead-Time Control | Yes | No | No | Yes | Yes |
Key Differentiators
- Higher isolation voltage than ADUM3220ARZ-RL7 (vs ADUM3220ARZ-RL7)
- Dead-time control feature (vs ADUM3220ARZ-RL7)
- Wide-body SOIC package for better creepage (vs ADUM3220ARZ-RL7)
Design Notes
Place decoupling capacitors (0.1 uF and 10 uF) close to VDD1 and VDD2 pins to ensure stable supply voltages. Use a solid ground plane for GND1 and GND2 to minimize noise. Keep the gate drive loop (output pins to MOSFET gate) as short as possible to reduce parasitic inductance.
The ADUM4220ARWZ-RL7 dissipates power mainly during switching. Ensure adequate copper area on the PCB for heat dissipation, especially when driving large gate charges at high frequencies. The thermal resistance of the SOIC-W package is moderate; consider adding thermal vias if operating near maximum ratings.
Do not exceed the absolute maximum supply voltage of 18 V on VDD1 or VDD2. Ensure the dead-time control pin is properly configured to prevent shoot-through in half-bridge topologies. Verify that the input signals are within the recommended logic levels to avoid false triggering.
Compliance Information
RoHS compliance confirmed from Analog Devices product page. Other compliance data not explicitly stated in provided sources.
