Overview
The ADUM1234BRWZ from Analog Devices Inc. is an isolated, precision half-bridge gate driver that utilizes the company's iCoupler® technology. This device provides independent and isolated high-side and low-side outputs, combining high-speed CMOS and monolithic transformer technology to offer superior performance compared to optocoupler-based solutions. It is designed to avoid the reliability and performance stability issues associated with optocouplers, ensuring precise timing characteristics and true galvanic isolation between the input and each output.
Key Specifications
| Parameter | Min | Max | Unit |
|---|---|---|---|
| Operating Temperature (TA) | -40 | 105 | °C |
| Input Supply Voltage (VDD1) | 4.5 | 5.5 | V |
| Output Supply Voltages (VDDA, VDDB) | 12 | 18 | V |
| Peak Output Current | 0.1 | A | |
| Common-Mode Transient Immunity | -75 | 75 | kV/µs |
| High-Side/Low-Side Differential Voltage | 700 | V peak | |
| Package/Case | 16-Lead SOIC | ||
| RoHS Status | Compliant |
Key Features
- Isolated high-side and low-side outputs
- High side or low side relative to input: ±700 V peak
- High-side/low-side differential: 700 V peak
- 0.1 A peak output current
- CMOS input threshold levels
- High frequency operation: up to 5 MHz
- High common-mode transient immunity: >75 kV/µs
- High temperature operation: up to 105°C
- Wide body, RoHS-compliant, 16-lead SOIC package
- Safety and regulatory approvals: UL recognition and VDE certificate of conformity
Applications
- Isolated IGBT/MOSFET gate drives
- Plasma displays
- Industrial inverters
- Switching power supplies
Q & A
- Q: What is the ADUM1234BRWZ used for?
A: The ADUM1234BRWZ is used as an isolated, precision half-bridge gate driver for applications such as isolated IGBT/MOSFET gate drives, plasma displays, industrial inverters, and switching power supplies.
- Q: What is the peak output current of the ADUM1234BRWZ?
A: The peak output current of the ADUM1234BRWZ is 0.1 A.
- Q: What is the operating temperature range of the ADUM1234BRWZ?
A: The operating temperature range of the ADUM1234BRWZ is from -40°C to 105°C.
- Q: What is the common-mode transient immunity of the ADUM1234BRWZ?
A: The common-mode transient immunity of the ADUM1234BRWZ is greater than 75 kV/µs.
- Q: What package type is the ADUM1234BRWZ available in?
A: The ADUM1234BRWZ is available in a 16-lead SOIC package.
- Q: Is the ADUM1234BRWZ RoHS compliant?
A: Yes, the ADUM1234BRWZ is RoHS compliant.
- Q: What are the safety and regulatory approvals for the ADUM1234BRWZ?
A: The ADUM1234BRWZ has UL recognition and VDE certificate of conformity.
- Q: What is the maximum differential voltage between the high side and low side of the ADUM1234BRWZ?
A: The maximum differential voltage between the high side and low side is 700 V peak.
- Q: How does the ADUM1234BRWZ ensure isolation between inputs and outputs?
A: The ADUM1234BRWZ uses Analog Devices' iCoupler® technology to provide true galvanic isolation between the input and each output.
- Q: What is the maximum frequency of operation for the ADUM1234BRWZ?
A: The ADUM1234BRWZ can operate at frequencies up to 5 MHz.
