Datasheet > UCL2300

UCL2300

更新时间： 2024-11-05 01:21:39

品牌	Logo	应用领域
友顺 - UTC		驱动功率因数校正
页数	文件大小	规格书
5页	188K
描述
PSR SINGLE-STAGE APFC OFFLINE LED DRIVER

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数据手册

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UCL2300 数据手册

UNISONIC TECHNOLOGIES CO., LTD

UCL2300

Preliminary

LINEAR INTEGRATED CIRCUIT

PSR SINGLE-STAGE APFC

OFFLINE LED DRIVER



DESCRIPTION

The UTC UCL2300 is a high precision primary-side regulation

controller with single stage Active PFC, specially designed for

universal input offline flyback or buck-boost constant current LED

lighting. The controller with on-chip PFC circuit achieves high

power factor and low THD. Operating in critical conduction mode,

the power MOSFET switching loss is reduced and the inductor is

fully utilized.

The UTC UCL2300 adopts proprietary primary side current

sensing scheme. It can precisely control the LED current without

secondary side sense and feedback circuits. The system size and

cost are optimized, as well as the system reliability.

The UTC UCL2300 utilizes patented line and load voltage

compensation method to achieve excellent line and load

regulation. And the line compensation factor can also be tuned

externally for flexibility.

The UTC UCL2300 offers rich protection functions to improve

the system reliability, including LED open circuit protection, LED

short circuit protection, V_CCover voltage protection, V_CCunder

voltage protection, CS resistor open protection and cycle by cycle

current limit. All the protection functions are auto-recovery.



FEATURES

* Single-stage active PFC for high power factor and low THD * Ultra-low (300μA) Operating current

* Primary side control constant current operation, No

opto-coupler required

* High resistance feedback resistor for improved

efficiency

* Ultrafast LED start (<200ms @85V)

* ±3% LED current accuracy

* Excellent line and load regulation

* Critical conduction mode operation

* Source driving method

* LED open and short circuit protection

* CS resistor open and short circuit protection

* Transformer saturation protection

* Cycle-by-cycle current limit

* V_CCover-voltage and under-voltage protection

* Auto fault recovery

* Ultra-low (20μA) startup current



ORDERING INFORMATION

Ordering Number

UCL2300G-S08-R

Package

SOP-8

Packing

Tape Reel

www.unisonic.com.tw

1 of 5

QW-R125-034.a

12 3 4 5

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