ACT43950SR

Overview

The ACT43950SR is a high-voltage constant current capacitor charging controller manufactured by Qorvo. Designed for phased array radar systems, it operates in conjunction with silicon carbide power switches to deliver fully programmable output voltage and current capabilities. This architecture allows system designers to maximize performance while minimizing the requirements for energy storage capacitors. The device supports advanced configuration options that help reduce noise and electromagnetic interference, contributing to optimized radar array efficiency.

Feature Summary

• Provides fully programmable output voltage and current for precise system control
• Integrates with silicon carbide power switches to optimize energy storage capacitor requirements
• Supports advanced configuration options to minimize noise and electromagnetic interference

Applications

• Phased array radar systems
• High-voltage capacitor charging circuits
• RF load point power conversion stages

Procurement Notes

Verify the specific suffix SR against official Qorvo documentation to confirm packaging and reel specifications. Ensure compatibility with associated silicon carbide switches and GaN power amplifiers as intended for the target radar application. Cross-reference the part number with authorized distributors to confirm availability and authenticity. Check for any required evaluation boards or GUI tools for initial configuration and optimization.

Selection Notes

Select this component when designing high-voltage charging stages for radar arrays requiring precise current regulation. It is suitable for applications where minimizing passive component count and size is critical. Consider its integration with ACT43850 and ACT43750 for complete power management solutions. Evaluate thermal performance and programming flexibility against system-specific radar pulse requirements.

Part Context

The ACT43950 belongs to Qorvo's specialized power management portfolio for RF and defense applications. It complements other PMICs like the ACT43850 and ACT43750 to form a comprehensive three-chip solution for GaN power amplifier biasing and switching. This series targets high-performance radar systems demanding low noise and high reliability.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult Qorvo technical support for direct replacements or pin-compatible alternatives if the ACT43950SR is unavailable.