Supertex Continues Support for MEMS and Other High Voltage Markets With Release of a New High Voltage Non-Isolated Power

Supertex Continues Support for MEMS and Other High Voltage Markets With Release 
of a New High Voltage Non-Isolated Power Controller 
HV9150 Hysteretic Boost Controller for Battery Level Inputs 
SUNNYVALE, CA -- (Marketwired) -- 12/03/13 --  Supertex (NASDAQ:
SUPX), a recognized leader in high voltage analog and mixed signal
integrated circuits (ICs), expanded its product offerings in support
of MEMS and other high voltage solutions with the introduction of the
HV9150. 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 (6V to 500V) from a battery level input
(2.7V to 4.5V). 
In today's 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.  
The HV9150 is designed as a versatile, simple hysteretic controller,
working at a fixed, user set frequency (40kHz to 400kHz) and duty
cycle (50% to 87.5%, 4 options). 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. 
"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," states Jimes Lei, Director
of Application Engineering of Supertex. "Supertex will continue to
improve its unique process capabilities, and provide increasing
levels of service and value to its expanding base of MEMS customers." 
The HV9150 is available in a lead(Pb)-free/RoHS compliant 16-lead 3x3
QFN package (HV9150K6-G). Samples and demoboard (HV9150DB1) are
available from stock. Lead-time for production quantities is 4-6
weeks, ARO. Pricing is US$0.77 each in 1K quantities.  
About Supertex
 Supertex, Inc. is a publicly held mixed signal
semiconductor manufacturer, focused in high voltage interface
products for use in the telecommunications, networking systems, flat
panel displays, medical and industrial electronics industries.
Supertex product, corporate and financial information is readily
available at 
Corporate Headquarters:
Christine Mahiya
Marketing Communications Manager
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