Overview
The ADUM5230WARWZ-RL from Analog Devices Inc. is an isolated half-bridge gate driver that utilizes iCoupler® technology to provide independent and isolated high-side and low-side outputs. This component combines CMOS and microtransformer technologies to offer true galvanic isolation between the input and each output, eliminating the need for external supply configurations such as bootstrap circuitry. The integrated dc-to-dc converter provides an isolated high-side supply, which powers the high-side output and any external buffer circuitry. This design supports low-side switching to negative voltages and can handle differential voltages up to ±700 V between the high side and low side.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|---|
| Operating Temperature (TA) | - | -40°C | - | 105°C | - | - |
| Input Supply Voltage (VDD1) | VDD1 | 4.5 V | - | 5.5 V | - | Relative to ground |
| Channel B Supply Voltage (VDDB) | VDDB | 12 V | - | 18.5 V | - | Relative to ground |
| Input Signal Rise and Fall Times | - | - | 1 ms | - | - | - |
| Input-Output Isolation Voltage | - | - | - | 2500 Vrms | - | - |
| Input Capacitance (CI) | CI | - | - | 4.0 pF | - | - |
| Input-Output Capacitance (CI-O) | CI-O | - | - | 2.0 pF | - | f = 1 MHz |
| Input-Output Resistance (RI-O) | RI-O | 10^12 Ω | - | - | - | - |
Key Features
- True Galvanic Isolation: Provides isolation between the input and each output, supporting differential voltages up to ±700 V.
- Integrated DC-to-DC Converter: Eliminates the need for external supply configurations like bootstrap circuitry, providing an isolated high-side supply.
- Low-Side Switching to Negative Voltages: Supports low-side switching to negative voltages, enhancing flexibility in various applications.
- High Isolation Voltage: Offers 2500 Vrms input-output isolation voltage, ensuring robust electrical isolation.
- Adjustable Power Output: The PWM duty cycle can be controlled externally through the VADJ pin, allowing for adjustable power output to meet specific application needs.
- Undervoltage Lockouts: Provided on the VDD1 supply to ensure reliable operation under varying conditions.
Applications
- Power System Management: Suitable for digital power system management, including high-side switches and MOSFET drivers.
- Industrial Control Systems: Used in industrial control systems where isolated gate drivers are necessary for safety and reliability.
- Automotive Systems: Applicable in automotive systems requiring isolated gate drivers for high-voltage applications.
- Renewable Energy Systems: Can be used in renewable energy systems, such as solar and wind power, where isolated gate drivers are essential.
- Medical Devices: Suitable for medical devices that require high isolation and reliability.
Q & A
- What is the primary function of the ADUM5230WARWZ-RL?
The ADUM5230WARWZ-RL is an isolated half-bridge gate driver that provides independent and isolated high-side and low-side outputs using iCoupler® technology.
- What is the isolation voltage of the ADUM5230WARWZ-RL?
The ADUM5230WARWZ-RL offers an input-output isolation voltage of 2500 Vrms.
- What is the operating temperature range of the ADUM5230WARWZ-RL?
The operating temperature range is from -40°C to +105°C.
- Can the ADUM5230WARWZ-RL handle low-side switching to negative voltages?
Yes, it supports low-side switching to negative voltages.
- How is the power output of the ADUM5230WARWZ-RL adjusted?
The PWM duty cycle can be controlled externally through the VADJ pin to adjust the power output.
- What type of package does the ADUM5230WARWZ-RL come in?
The ADUM5230WARWZ-RL comes in a 16-SOIC package.
- Does the ADUM5230WARWZ-RL have undervoltage lockouts?
Yes, undervoltage lockouts are provided on the VDD1 supply.
- What are some common applications of the ADUM5230WARWZ-RL?
Common applications include power system management, industrial control systems, automotive systems, renewable energy systems, and medical devices.
- How does the integrated dc-to-dc converter work in the ADUM5230WARWZ-RL?
The dc-to-dc converter works as an open-loop PWM controller, transferring power through a chip-scale air core transformer and rectifying it to a dc voltage on the secondary side.
- Is the ADUM5230WARWZ-RL compliant with any regulatory standards?
Yes, it is recognized under the UL1577 component recognition program.
