Datasheet > UC3842A UC3843A

UC3842A UC3843A

更新时间： 2024-11-05 14:54:59

品牌	Logo	应用领域
友顺 - UTC		/
页数	文件大小	规格书
7页	444K
描述
PWM Controllers with Low Start-Up Current

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UC3842A UC3843A 数据手册

UNISONIC TECHNOLOGIES CO., LTD

UC3842A/3843A

LINEAR INTEGRATED CIRCUIT

HIGH PERFORMANCE

CURRENT MODE PWM

CONTROLLERS



DESCRIPTION

The UTC UC3842A/3843A are high performance fixed

frequency current mode controllers that specifically designed for

Off-Line and DC to DC converter applications with minimal external

parts count.

The differences between UC3842A and UC3843A are the

under-voltage lockout thresholds. The UC3842A ideally suited to

off-line applications with UVLO thresholds of 16V_(ON)and 10V_(OFF)

and UC3843A has UVLO thresholds of 8.4V_(ON)and 7.6V_(OFF)for

lower voltage applications.



FEATURES

* Operation output switching frequency up to 500 kHz

* Automatic feed forward compensation

* Latching PWM for cycle-by-cycle current limiting

* High current totem pole output

* Internally trimmed reference with under voltage lockout

* UVLO with hysteresis

* Low startup and operating current



ORDERING INFORMATION

Ordering Number

Lead Free

Package

Packing

Halogen Free

UC3842AL-D08-T

UC3842AL-S08-R

UC3843AL-D08-T

UC3843AL-S08-R

UC3842AP-D08-T

UC3842AP-S08-R

UC3843AP-D08-T

UC3843AP-S08-R

DIP-8

SOP-8

DIP-8

Tube

Tape Reel

Tube

SOP-8

Tape Reel

www.unisonic.com.tw

1 of 7

QW-R103-002.N

12 3 4 5 6 7

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与UC3842A UC3843A相关器件

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UC3842A/D	MOTOROLA	获取价格	High Performance Current Mode Controller
UC3842A_05	UTC	获取价格	CURRENT MODE PWM CONTROL CIRCUITS
UC3842A_05	ONSEMI	获取价格	High Performance Current Mode Controllers
UC3842A_07	ONSEMI	获取价格	High Performance Current Mode Controllers
UC3842A_11	UTC	获取价格	CURRENT MODE PWM CONTROL CIRCUITS
UC3842A_12	UTC	获取价格	CURRENT MODE PWM CONTROL CIRCUITS
UC3842A_17	UTC	获取价格	CURRENT MODE PWM CONTROL CIRCUITS
UC3842A-BW	FCI	获取价格	Current Mode PWM Controller Low Start-Up and Operating Current
UC3842ACD	ETC	获取价格	Analog IC
UC3842ACS	ETC	获取价格	Analog IC