AOZ32034AQV

Specialized ICS Overview

The AOZ32034AQV is an integrated half-bridge coil driver designed for wireless charger transmitters. It incorporates high-side and low-side N-channel MOSFETs with a driver circuit, supporting input voltages from 3.8V to 28V. The device features adjustable gate drive source and sink currents via the SRC pin to optimize EMI and efficiency. Internal MOSFETs exhibit a typical on-resistance of 7.5 mΩ. Protection mechanisms include VCC UVLO (rising threshold 4.3V), bootstrap UVLO, and over-temperature protection at 150°C. It operates within an ambient temperature range of -40°C to +125°C.

Specialized ICS Feature Summary

• Integrated half-bridge solution with intelligent slew-rate control for wireless charger applications
• Adjustable gate drive current via external resistor on SRC pin to optimize EMI and losses
• Low RDS(ON) internal N-channel MOSFETs: 7.5 mΩ for both high-side and low-side
• Built-in protections including VCC UVLO, BST-VHB UVLO, and Over-Temperature Protection (OTP)

Specialized ICS Applications

• Wireless charger transmitter circuits
• Full-bridge topology designs with resonant tank circuits
• 15W to 50W coil driver systems

Specialized ICS Procurement Notes

Verify component authenticity through authorized Alpha & Omega Semiconductor distributors. Confirm RoHS compliance and Pb-free plating status as specified in the manufacturer's green policy. Ensure packaging matches Tape & Reel or Cut Tape formats. Validate lot codes against the part marking scheme for assembly date verification.

Specialized ICS Selection Notes

Select this component for designs requiring a compact half-bridge driver with thermal management capabilities. The 23-pin 4x4 QFN package offers thermally enhanced performance suitable for power densities between 15W and 50W. Ensure the application supports the required VCC supply range of 4.75V to 5.5V and VIN up to 28V. Consider the SRC pin resistor requirements for specific EMI constraints.

Specialized ICS Part Context

The AOZ32034AQV belongs to the specialized ICs category under Power Driver Modules. It is manufactured by Alpha & Omega Semiconductor Inc. and is packaged in a 23-PowerTFQFN (4mm x 4mm) format. The device is designated as a Green product compliant with environmental standards.

Specialized ICS Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Direct replacement requires matching the 23-pin QFN footprint, electrical ratings, and functional pinout.

Specialized ICS FAQ

How is the gate drive slew rate controlled?

The slew rate is adjusted by connecting an external resistor between the SRC pin and GND. A recommended range is 10kΩ to 100kΩ. Floating the SRC pin or applying >4V uses maximum drive capability.

What are the UVLO thresholds for VCC?

The VCC UVLO rising threshold is typically 4.3V, and the falling threshold is typically 4.2V, monitored when VIN is at 12V.

How does the device prevent shoot-through?

It employs a non-overlapping mechanism where the inactive side remains low if the active side goes high first, preventing simultaneous conduction of high-side and low-side MOSFETs.