Primary Side Regulation Power Switch Controller

Product
Number

Max Oper. Freq.

MOSFET Vds

RDS
(on)

Freq. Shuffling

Standby Power

Max
Vdd

CC

CV

Cable
Compen-
sation

OLP
SCP

Package

Download

LY2903

55KHz

>600V

12Ω

Y

<200mW

26V

5%

10%

Y

A

SOP-8

Datasheet

LY2909

55KHz

>600V

9.0Ω

Y

<200mW

26V

5%

10%

Y

A

DIP-8

Datasheet

LY2911

55KHz

>600V

5.0Ω

Y

<200mW

26V

5%

10%

Y

A

DIP-8

Datasheet

LY2912

55KHz

>600V

3.3Ω

Y

<200mW

26V

5%

10%

Y

A

DIP-8

Datasheet

LY2917

55KHz

>600V

2.2Ω

Y

<200mW

26V

5%

10%

Y

A

DIP-8

Datasheet

Product
Number

Max Oper. Freq.

BJT
Vcb

Max Pout(W)

Freq. Shuffling

Standby Power

Max
Vdd

CC

CV

Cable
Compen-
sation

OLP
SCP

Package

Download

LY2973

100KHz

>600V

5W

Y

<200mW

25V

5%

10%

Y

A

SOP-8

Datasheet

LY2975

100KHz

>600V

6W

Y

<200mW

25V

5%

10%

Y

A

SOP-8

Datasheet

LY2976

100KHz

>600V

7W

Y

<200mW

25V

5%

10%

Y

A

DIP-8

Datasheet

LY2977

100KHz

>600V

8W

Y

<200mW

25V

5%

10%

Y

A

DIP-8

Datasheet

LY2978

100KHz

>600V

9W

Y

<200mW

25V

5%

10%

Y

A

DIP-8

Datasheet