Datasheet > KA3842A

KA3842A

更新时间： 2024-11-08 22:47:43

品牌	Logo	应用领域
永盛 - Wing Shing		控制器
页数	文件大小	规格书
5页	180K
描述
Linear Integrated Circuit(CURRENT-MODE PWM CONTROLLER)

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数据手册

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KA3842A 数据手册

Linear Integrated Circuit

KA3842A

KA3842AM

CURRENT- MODE P WM CONTROLLER

PIN CONNECTION

The KA3842A

are fixe fre que ncy curre nt-mode

PWM controlle r. The y are spe cially de signe d for OFF- Line and DC- to- DC conve rte r

applications with minimal e xte rnal compone nts. The se inte grate d circuits fe ature

trimme d oscillator for pre cise duty cycle control, a te mpe rature compe nsate d re fe re nce ,

KA3842AM

high gain e rror amplifie r, curre nt se nsing comparator, and

output ide ally suite d for driving a powe r MOSFET.

a high curre nt tote mpole

Prote ction circuity include s built unde r- voltage lockout and curre nt limiting.

The

KA3842A,KA3842AM

have UVLO thresholds of 16 V(on) and 10 V (off).

can

The KA3842A ,KA384AM

operate

duty cycle

The KA3842A has been proven

within 100%

in applications

using the same external components as Motorola's parts,among others .The KA3842AM

Many applications can use either

have Start-Up Curre nt 0,45 mA

has been optimized for compatibility with Samsung's parts

The KA3842A

KA3842AM

KA3842A or KA3842AM

SO-8

DIP-8

FEATURES

o rd e rin g

Low Start-Up Curre nt

Maximum Duty Cycle

U/ V Lockout With Hyste re sis

Ope rating Fre gue ncy Up To 500khz

in fo rm a tio n

De vice

Package

Ope rating te mpe rature

0 to + 70⁰C

KA3842AM

KA3842AMM

KA3842AN

SO-8

DIP-8

KA3842AMN

BLOCK DIAGRAM

Ab s o lu te Ma xim u m Ra tin g s

Ch a ra c te ris tic

Supply Voltage

S ym b o l

V_CC

Va lu e

Un it

Output Curre nt

I_O

±1

Analog Inputs

- 0.3 to V_CC

Error Amp Output Sink Curre nt

Powe r Dissipation (T_A= 25⁰C)

I_{SINK (E.A)}

P_O

Wing Shing Computer Components Co., (H.K.)Ltd.

Homepage: http://www.wingshing.com

Tel:(852)2341 9276 Fax:(852)2797 8153

E-mail: wsccltd@hkstar.com

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与KA3842A相关器件

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KA3842AC	FAIRCHILD	获取价格	SMPS Controller
KA3842AC_06	FAIRCHILD	获取价格	SMPS Controller
KA3842ACS	ROCHESTER	获取价格	1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDIP8, LEAD FREE, DIP-8
KA3842ACS	FAIRCHILD	获取价格	Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDIP8, LEAD FR
KA3842AE	FAIRCHILD	获取价格	SMPS Controller
KA3842AM	Wing Shing	获取价格	Linear Integrated Circuit(CURRENT-MODE PWM CONTROLLER)
KA3842AMM	Wing Shing	获取价格	Linear Integrated Circuit(CURRENT-MODE PWM CONTROLLER)
KA3842AMN	Wing Shing	获取价格	Linear Integrated Circuit(CURRENT-MODE PWM CONTROLLER)
KA3842AN	Wing Shing	获取价格	Linear Integrated Circuit(CURRENT-MODE PWM CONTROLLER)
KA3842B	FAIRCHILD	获取价格	SMPS Controller