Datasheet > UC3842B UC3843B

UC3842B UC3843B

更新时间： 2024-11-27 14:51:55

品牌	Logo	应用领域
友顺 - UTC		/
页数	文件大小	规格书
7页	422K
描述
PWM Controllers with Low Start-Up Current

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UC3842B UC3843B 数据手册

UNISONIC TECHNOLOGIES CO., LTD

UC3842B/3843B

LINEAR INTEGRATED CIRCUIT

HIGH PERFORMANCE

CURRENT MODE PWM

CONTROLLERS



DESCRIPTION

The UTC UC3842B/3843B 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 UC3842B and UC3843B are the

under-voltage lockout thresholds. The UC3842B ideally suited to

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

and UC3843B 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

Package

Packing

Lead Free

Halogen Free

UC3842BL-D08-T

UC3842BL-S08-R

UC3843BL-D08-T

UC3843BL-S08-R

UC3842BP-D08-T

UC3842BP-S08-R

UC3843BP-D08-T

UC3843BP-S08-R

DIP-8

SOP-8

DIP-8

Tube

Tape Reel

Tube

SOP-8

Tape Reel

www.unisonic.com.tw

1 of 7

QW-R103-012.K

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与UC3842B UC3843B相关器件

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UC3842B/D	ETC	获取价格	High Performance Current Mode Controller
UC3842B_07	ONSEMI	获取价格	High Performance Current Mode Controllers
UC3842B_08	UTC	获取价格	HIGH PERFORMANCE CURRENT MODE CONTROLLERS
UC3842B_11	ONSEMI	获取价格	High Performance Current Mode Controllers
UC3842B_12	UTC	获取价格	HIGH PERFORMANCE CURRENT MODE CONTROLLERS
UC3842BD	ONSEMI	获取价格	High Performance Current Mode Controllers
UC3842BD	MOTOROLA	获取价格	HIGH PERFORMANCE CURRENT MODE CONTROLLERS
UC3842B-D08-T	UTC	获取价格	HIGH PERFORMANCE CURRENT MODE CONTROLLERS
UC3842BD1	MOTOROLA	获取价格	HIGH PERFORMANCE CURRENT MODE CONTROLLERS
UC3842BD1	STMICROELECTRONICS	获取价格	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER