Datasheet > USR3651S_18

USR3651S_18

更新时间： 2024-10-15 01:00:31

品牌	Logo	应用领域
友顺 - UTC		/
页数	文件大小	规格书
9页	261K
描述
HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH

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数据手册

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USR3651S_18 数据手册

UNISONIC TECHNOLOGIES CO., LTD

USR3651S

CMOS IC

HIGH PRECISION CC/CV

PRIMARY-SIDE PWM POWER

SWITCH



DESCRIPTION

The UTC USR3651S is a primary control switch mode charger

DIP-8

and adapter applications. The controlled variable is transferred by

an auxiliary winding from the secondary to the primary side. The

device integrates PWM controller to enhance the performance of

discontinuous conduction mode (DCM) flyback converters.

The UTC USR3651S operates in primary-side sensing and

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

provides off-time modulation to linearly decrease PWM frequency

under light-load conditions so that low standby power can be

achieved.

SOP-8

The UTC USR3651S 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, V_DDover voltage protection, V_DDclamp, OTP,

leading edge blanking, V_DDunder voltage lockout, etc.



FEATURES

* High Voltage startup circuit

* Built-in leading edge blanking

* Built-in 650V Power MOSFET

* Built-in primary winding inductance

compensation

* Power on soft start

* Gate Output Maximum Voltage Clamped at

15V

* ±5% constant voltage regulation at universal AC input

* High precision constant current regulation at universal AC input

* Primary side control without TL431 and opto-coupler

* Programmable CV and CC regulation

* Programmable cable compensation in CV mode

* Flyback topology in DCM operation

* Frequency hopping to reduce system EMI

* Cycle-by-cycle current limiting

* Over voltage protection

* V_DDunder-voltage lockout



ORDERING INFORMATION

Ordering Number

Lead Free

Package

Packing

Halogen Free

USR3651SL-D08-T

USR3651SL-S08-R

USR3651SG-D08-T

USR3651SG-S08-R

DIP-8

Tube

SOP-8

Tape Reel

www.unisonic.com.tw

1 of 9

QW-R103-085.E

12 3 4 5 6 7...9

中文翻译

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与USR3651S_18相关器件

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USR3651SG-D08-T	UTC	获取价格	HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH
USR3651SG-S08-R	UTC	获取价格	HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH
USR3651SL-D08-T	UTC	获取价格	HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH
USR3651SL-S08-R	UTC	获取价格	HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH
USR3652	UTC	获取价格	HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH
USR3652G-S08-R	UTC	获取价格	HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH
USR3652L-S08-R	UTC	获取价格	HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH
USR3652S	UTC	获取价格	HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH
USR3652SG-D08-T	UTC	获取价格	HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH
USR3652SL-D08-T	UTC	获取价格	HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH