USRB01G-S08-R datasheet(6/7 Pages) UTC

Il numero della parte	USRB01G-S08-R

Spiegazioni elettronici	HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH

PDF	7 Pages

Scroll/Zoom	100%

Produttore elettronici	UTC [Unisonic Technologies]

Homepage	http://www.utc-ic.com

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6 / 7 page

USRB01

Preliminary

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

6 of 7

www.unisonic.com.tw

QW-R103-080.b

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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 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 USRB01 is shutdown when VDD drops

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

USRB01G-S08-R Scheda tecnica(PDF) 6 Page - Unisonic Technologies