KA3843ACD datasheet(1/6 Pages) FAIRCHILD

Numer części	KA3843ACD

Szczegółowy opis	SMPS Controller

Download	6 Pages

Scroll/Zoom	100%

Producent	FAIRCHILD [Fairchild Semiconductor]

Strona internetowa	http://www.fairchildsemi.com

Logo

1 / 6 page

www.fairchildsemi.com

Rev. 1.0.1

Features

• Low start current 0.2mA (typ)

• Operating range up to 500kHz

• Cycle by cycle current limiting

• Under voltage lock out with hysteresis

• Short shutdown delay time: typ.100ns

• High current totem-pole output

• Output swing limiting: 22V

Description

The KA3843AC are fixed PWM controller for Off-Line and

DC to DC converter applications. The internal circuits

include

UVLO, low start up current circuit, temperature

compensated reference, high gain error amplifier, current

sensing comparator, and high current totem-pole output for

driving a POWER MOSFET. Also KA3843AC provide low

start up current below 0.3mA and short shutdown delay

time typ. 100ns. The KA3843AC is 8.4V(on) and 7.6V(off).

The KA3843AC can operate within 100% duty cycle.

8-DIP

8-SOP

1

Internal Block Diagram

8

+

-

7

5

SET/

RESET

5V

VREF

Internal

Bias

Good LOGIC

2

R

S

OSCILLATOR

1

3

4

T

7

6

5

UVLO

29V

22V

1/3

Error Amp

1/2VREF

1V

C.S

Comp.

PWM

LATCH

VREF

VFB

COMP

C.S

RT/CT

OUTPUT

VCC

GND

PWR

VC

PWR

GND

KA3843AC

SMPS Controller

Podobny numer części - KA3843ACD

Producent	Numer części	Arkusz danych	Szczegółowy opis
Wing Shing Computer Com...	KA3843A	662Kb / 9P	Current�� Mode��PWM��Cont roller
Wing Shing Computer Com...	KA3843AM	662Kb / 9P	Current�� Mode��PWM��Cont roller

More results

Podobny opis - KA3843ACD

Producent	Numer części	Arkusz danych	Szczegółowy opis
Fairchild Semiconductor	KA7511	56Kb / 8P	SMPS Controller
	KA3842B	125Kb / 10P	SMPS Controller
	UC3842A	42Kb / 8P	SMPS Controller
ARTSCHIP ELECTRONICS CO...	MC34063A	334Kb / 10P	SMPS Controller
Fairchild Semiconductor	UC3842	127Kb / 12P	SMPS Controller
	UC3846	67Kb / 10P	SMPS Controller
	KA3525A	78Kb / 5P	SMPS CONTROLLER
	KA7515	36Kb / 6P	SMPS Controller
ON Semiconductor	KA3525A	207Kb / 8P	SMPS Controller Rev. 1.0.1
ON Semiconductor	KA3843B	243Kb / 12P	SMPS Controller Rev. 1.0.2

More results

KA3843ACD Arkusz danych(PDF) 1 Page - Fairchild Semiconductor

KA3843ACD Arkusz danych(HTML) 1 Page - Fairchild Semiconductor

Podobny numer części - KA3843ACD

Podobny opis - KA3843ACD

Html Pages

1 2 3 4 5 6

Arkusz danych Pobierz

Link URL