Advertisment

Supertex releases of a new high voltage non-isolated power controller

author-image
Harmeet
New Update

SUNNYVALE, USA: Supertex, expanded its product offerings in support of MEMS and other high voltage solutions with the introduction of the HV9150.

Advertisment

The HV9150 is a power management IC, a hysteretic controller that is intended to simply and easily provide a non-isolated, regulated high voltage output from a battery level input.

The world of improved battery technology and equipment portability, portable instrumentation and other industrial applications requiring high voltage often requires complex, high component count circuitry to create the necessary high voltage bias supplies.

As part of its ongoing commitment to the high voltage market, the HV9150 was created to simplify high voltage regulation for these applications, in supplement to its strategy of developing next generation solutions for optical switching applications, as well as other high voltage applications.

Advertisment

The HV9150 is designed as a versatile, simple hysteretic controller, working at a fixed, user set frequency and duty cycle. This burst-mode or hysteretic controller is very simple in operation, with regulation achieved through a valve-control approach, where the pulse chain is gated for drive of the main power switch in response to a droop in output voltage. Given its hysteretic nature, the controller is naturally stable, with no feedback compensation requirements to consider.

Designed to work with an external MOSFET, the HV9150 is designed to support power levels of up to 5W. The gate voltage for the off-board MOSFET can be generated from a lower voltage with an on board charge pump, or from a higher off board voltage through an on board linear regulator.

Other features include a ground switch in the feedback path for power savings when the chip is in the low power state and provision for an external reference voltage.

Jimes Lei, director of application engineering of Supertex said: "Supertex is a strong supplier of solutions in this space, and the Company is rapidly working to expand its relationships with other key suppliers and customers in this market. Supertex will continue to improve its unique process capabilities, and provide increasing levels of service and value to its expanding base of MEMS customers."

semicon