HMC920LP5E

HMC920LP5E is a 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) upto 500mA, offering a complete biasing solution. It 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. It is widely used in applications such as cellular base station, wireless infrastructure equipment, microwave radio & VSAT, military & space, test instrumentation etc.

• Single positive voltage supply is 5V to 16.5V
• Adjustable drain current upto 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
• Operating temperature is -40°C to +85°C, package style is QFN

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