QPK1520
Octal GaN gate driver with programmable bias and sequencing
Key Features
- 8-channel programmable gate bias control (PA + LNA support)
- Integrated DACs for independent VON/VOFF settings
- High-speed TX/RX switching with programmable sequencing
- I2C and SPI digital interface for flexible system control
- Built-in temperature compensation for stable bias over environment
- Supports IDQ calibration when paired with drain controller
- ±10 mA gate drive capability
- Compact 5 × 5 mm package optimized for dense array designs
The QPK1520 is a high-speed, multi-channel GaN gate bias controller designed to provide precise, programmable gate control, sequencing, and temperature compensation for RF power amplifiers and low-noise amplifiers.
When used with the QPK1521 SPDT switch driver and QPK1522 drain controller, it forms a complete bias control chipset that enables fully coordinated gate, drain, and RF path switching in front-end modules and phased array systems. This chipset approach allows designers to implement sub-100 ns TX/RX switching, automated IDQ calibration, and safe bias sequencing, while significantly reducing the complexity and component count of traditional discrete bias networks.
Typical Applications
- AESA radar
- Phased array systems
- Electronic warfare
- RF front-end modules (FEMs)
Product Categories
| Pulse Control Mode | Gate |
| Min Drain Switch Voltage(V) | N/A |
| Max Drain Switch Voltage(V) | N/A |
| External Switch FET Support | No |
| Negative Gate Regulator Bias Range(V) | -5 |
| IDQ Auto Calibration | Yes (with QPK1522) |
| Automatic Power Sequencer | Yes |
| Negative Gate Voltage Generation | No (requires external VEE) |
| Package Type | LGA |
| Package(mm) | 5.0 x 5.0 |
| RoHS | Yes |
| Lead Free | Yes |
| Halogen Free | Yes |
| ITAR Restricted | No |
| ECCN | EAR99qpk |