QPK1522
Multi-channel GaN drain controller for high-speed bias switching
Key Features
- Multi-channel drain control for up to 4 PAs and 4 LNAs
- High-speed drain switching with symmetrical rise/fall times
- Integrated sequencing for coordinated TX/RX operation
- I2C and SPI interface for system-level control
- Built-in over-current and thermal protection
- Supports IDQ calibration with companion gate controller
- Wide input voltage support for GaN PA applications
- Compact 6 × 6 mm package
The QPK1522 is a high-speed drain bias controller that provides efficient drain switching, sequencing, and protection for multiple GaN power amplifiers and LNAs.
When combined with the QPK1520 gate controller and QPK1521 SPDT driver, it completes a fully integrated bias control solution that synchronizes drain biasing with gate control and RF switching. This coordinated chipset enables fast, safe bias sequencing, automated IDQ calibration, and reliable high-speed operation in demanding phased array and radar systems, while reducing system complexity and enabling scalable multi-channel front-end architectures.
Typical Applications
- AESA radar
- Phased array systems
- Electronic warfare
- RF front-end modules (FEMs)
Product Categories
| Pulse Control Mode | Drain (High-Speed Switching) |
| Min Drain Switch Voltage(V) | 10 |
| Max Drain Switch Voltage(V) | 35 |
| External Switch FET Support | Yes |
| Negative Gate Regulator Bias Range(V) | N/A |
| IDQ Auto Calibration | Yes |
| Automatic Power Sequencer | Yes |
| Negative Gate Voltage Generation | No |
| Package Type | LGA |
| Package(mm) | 6.0 x 6.0 |
| RoHS | Yes |
| Lead Free | Yes |
| Halogen Free | Yes |
| ITAR Restricted | No |
| ECCN | EAR99 |