HMC980LP4E High-Current Active Bias Controller
HMC980LP4E is an active bias controller that can automatically adjust the gate voltage of an external amplifier to achieve constant bias current. With an integrated controller, HMC980LP4E achieves safe power on/off, disable/enable and automatic supply sequencing ensuring the safety of the external amplifier. It can be used to bias any enhancement and depletion type amplifier operating in Class-A regime with Drain voltages (VDRAIN) from 5V to 16.5V and drain currents (IDRAIN) up to 1.6 A, offering a complete biasing solution.
HMC980LP4E achieves excellent bias stability over supply, temperature and process variations, and eliminates the required calibration procedures usually employed to prevent RF performance degradation due to such variations.
The HMC980LP4E is housed in an RoHS compliant 4x4 mm QFN leadless package with an exposed backside pad to improve thermal characteristics.
Applications
- Microwave Radio & VSAT
- Military & Space
- Test Instrumentation
- Fiber Optic Modulator Driver Biasing
- CATV Laser Driver Biasing
- Cellular Base Station
- Wireless Infrastructure Equipment
Features and BenefitsAutomatic Gate voltage adjustment (No Calibration required)Supply Voltage (5V to 16.5V)Bias both Enhancement or Depletion type devices- Adjustable Drain Current up to 1.6 A
Adjustable Drain Current up to 1.6 ASink or source gate currentInternal negative voltage generation- Can be disabled to use external negative rail
Can be disabled to use external negative railFast Enable/DisableTrigger-out Output for Daisy ChainPower-Up and Power-Down SequencingOver/Under Current Alarm with built-in hystresis24 Lead 4mmx4mm QFN Package: 16mm2 | |
Data Sheets
Application Notes
Order Information
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|
| HMC980LP4E Production | HCP-16 ld QFN (3x3mm w/1.725mm ep) | OTH 50 | -55 to 85C | 34.6 | 28.03 | Y |
| HMC980LP4ETR Production | HCP-16 ld QFN (3x3mm w/1.725mm ep) | REEL 500 | -55 to 85C | 34.6 | 28.03 | Y |
Evaluation Boards
| Part Number | Description | Price | RoHS |
|---|
| EVAL01-HMC980LP4E | Evaluation Board - HMC980LP4E Evaluation Board | 693 | Y |
Reference Materials
