HMC920LP5E is an active bias controller which generates a regulated Drain voltage and actively adjusts the gate voltage of an external amplifier to achieve constant bias current. It can be used to bias any enhancement and depletion type amplifiers operating in Class-A regime with Drain voltages (VDRAIN) from 3V to 15V and drain currents (IDRAIN) up to 500mA, offering a complete biasing solution.
The HMC920LP5E achieves excellent bias stability over supply, temperature and process variations, and eliminates the required calibration procedures used to prevent RF performance degradation due to such variations.
The HMC920LP5E is housed in an RoHS compliant 5x5 mm QFN leadless package with an exposed backside pad to improve thermal characteristics.
Applications
Cellular Base Station
Wireless Infrastructure Equipment
Microwave Radio & VSAT
Military & Space
Test Instrumentation
### Features and Benefits
Single Positive Voltage Supply (5V to 16.5V)
Adjustable Drain Voltage 3V to 15V
Adjustable Drain Current up to 500mA
Internal Negative Voltage Generator
Active Bias Current Regulation
Stable Bias Current Over Temperature and Process Variation and Aging
Short Circuit Protection (Power Foldback)
Adjustable Over/Under-Current Alarm
Adjustable Low Vdd Voltage Alarm
Automated Power-up Sequencing
Enable Input for Active Bias Control
Trigger-out Output for Daisy Chain Power-Up and Power-Down Sequencing
