Datasheet > UPSRB01A

UPSRB01A

更新时间： 2024-11-19 01:20:39

品牌	Logo	应用领域
友顺 - UTC		开关
页数	文件大小	规格书
7页	226K
描述
HIGH PRECISION CC/CV PRIMARY SIDE SWITCHING REGULATOR

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数据手册

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UPSRB01A 数据手册

UNISONIC TECHNOLOGIES CO., LTD

UPSRB01A

Preliminary

LINEAR INTEGRATED CIRCUIT

HIGH PRECISION CC/CV

PRIMARY SIDE SWITCHING

REGULATOR



DESCRIPTION

The UTC UPSRB01A is a primary control unit for switch mode

charger and adapter applications. The controlled variable is

transferred by an auxiliary winding from the secondary to the

primary side. The device uses Pulse Frequency Modulation

(PFM) method to build discontinuous conduction mode (DCM)

flyback power supplies.

SOT-26

The UTC UPSRB01A operates in primary-side sensing and

regulation. Opto-coupler and TL431 could be eliminated. It also

eliminates the need of loop compensation circuitry while

maintaining stability.

The UTC UPSRB01A achieves high precision CV/CC

regulation and high power efficiency. It offers comprehensive

protection coverage with auto-recovery features including

Cycle-by-cycle current limiting, output over voltage protection,

V_DDover voltage protection, feedback loop open protection, short

circuit protection, leading edge blanking, V_DDunder voltage

lockout, etc.



FEATURES

* ±5% constant voltage regulation at universal AC input

* Primary side control without TL431 and opto-coupler

* Built-in leading edge blanking

* High precision constant current regulation at universal AC input * Built-in primary winding inductance

* Programmable CV and CC regulation

* Eliminates control loop compensation circuitry

* Flyback topology in DCM operation

* Random frequency modulation to reduce system EMI

* Driver BJT switch

compensation

* Open circuit protection

* Output over voltage protection

* V_DDover voltage protection

* Short circuit protection

* Over temperature protection



ORDERING INFORMATION

Ordering Number

Package

Packing

UPSRB01AG-AG6-R

SOT-26

Tape Reel

UPSRB01AG-AG6-R

(1)Packing Type

(1) R: Tape Reel

(2) AG6: SOT-26

(2)Package Type

(3)Green Package

(3) G: Halogen Free and Lead Freee

www.unisonic.com.tw

1 of 7

QW-R103-095.a

12 3 4 5 6 7

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