UPSRB01G-AG6-R datasheet(6/6 Pages) UTC

6 / 6 page

UPSRB01

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

6 of 6

www.unisonic.com.tw

QW-R103-078.A

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OPERATION DESCRIPTION (Cont.)

Drive BJT

The driver is a push pull stage with the supply voltage VDD. It provides the driving current for the external power

bipolar transistor. The output signal is current-limited to IOUT(SOURCE).

Protection Control

Good power supply system reliability is achieved with its comprehensive protection features including output

over-voltage protection, VDD over voltage protection, OTP, feedback loop open protection, Cycle-by-cycle current

limiting, short circuit protection, leading edge blanking and UVLO, etc.

VDD is supplied by transformer auxiliary winding output. The output of UTC UPSRB01 is shutdown when VDD drops

below VTH(OFF) and the power converter enters power on start-up sequence thereafter.

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TYPICAL APPLICATION CIRCUIT

UTC assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or

other parameters) listed in products specifications of any and all UTC products described or contained

herein. UTC products are not designed for use in life support appliances, devices or systems where

malfunction of these products can be reasonably expected to result in personal injury. Reproduction in

whole or in part is prohibited without the prior written consent of the copyright owner. The information

presented in this document does not form part of any quotation or contract, is believed to be accurate

and reliable and may be changed without notice.

UPSRB01G-AG6-R Datasheet(PDF) 6 Page - Unisonic Technologies