Overview
The ADuM3223WARZ is a 4 A isolated, half-bridge gate driver produced by Analog Devices Inc. This component employs the iCoupler® technology to provide independent and isolated high-side and low-side outputs. It is designed to offer true galvanic isolation between the input and each output, making it suitable for applications requiring high voltage isolation and precise control over switching characteristics.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Input Supply Voltage | VDD1 | 3.0 | - | 5.5 | V | - |
| Output Current | - | - | - | 4 | A | - |
| Isolation Voltage | - | - | - | 3000 | V rms | 1 minute duration |
| Propagation Delay | - | - | 54 | ns | - | |
| Channel-to-Channel Matching | - | - | 5 | ns | - | |
| Input Capacitance | CI | - | - | 4.0 | pF | - |
| Input-to-Output Resistance | RI-O | 10^12 | - | - | Ω | - |
| Junction-to-Ambient Thermal Resistance | θJA | - | - | 76 | °C/W | - |
| Junction-to-Case Thermal Resistance | θJC | - | - | 42 | °C/W | - |
Key Features
- True galvanic isolation between input and each output using iCoupler technology.
- High speed CMOS and monolithic transformer technology for superior performance.
- High common-mode transient immunity: >25 kV/µs.
- Enhanced system-level ESD performance per IEC 61000-4-x.
- Thermal shutdown protection and high junction temperature operation up to 125°C.
- CMOS input logic levels and precise timing characteristics.
- Support for low-side switching to negative voltages and differential voltage up to 800 V peak between high-side and low-side.
Applications
The ADuM3223WARZ is suitable for various applications requiring isolated gate driving, including:
- IGBT/MOSFET configurations in power systems.
- High-voltage power supplies and motor control systems.
- Industrial automation and control systems.
- Renewable energy systems and power inverters.
- Medical devices requiring high isolation and safety standards.
Q & A
- What is the isolation voltage of the ADuM3223WARZ? The ADuM3223WARZ provides 3000 V rms isolation.
- What is the maximum output current of the ADuM3223WARZ? The maximum output current is 4 A.
- What is the input supply voltage range for the ADuM3223WARZ? The input supply voltage ranges from 3.0 V to 5.5 V.
- What technology does the ADuM3223WARZ use for isolation? The ADuM3223WARZ uses iCoupler technology for isolation.
- What is the maximum junction temperature for the ADuM3223WARZ? The maximum junction temperature is 125°C.
- Does the ADuM3223WARZ have thermal shutdown protection? Yes, the ADuM3223WARZ has thermal shutdown protection.
- What is the common-mode transient immunity of the ADuM3223WARZ? The common-mode transient immunity is >25 kV/µs.
- What are the regulatory approvals for the ADuM3223WARZ? The ADuM3223WARZ is approved or pending approval by organizations such as UL, CSA, and VDE.
- Can the ADuM3223WARZ support low-side switching to negative voltages? Yes, the ADuM3223WARZ supports low-side switching to negative voltages.
- What is the differential voltage between the high-side and low-side outputs? The differential voltage between the high-side and low-side may be as high as 800 V peak.
