SANKEN ELECTRIC CO.,LTD.

Warning

The contents in this document are subject to changes, for improvement and other purposes, without notice.

Make sure that this is the latest version of the document before use.

The operation and circuit examples in this document are provided for reference purposes only. Sanken assumes no liability for violation of industrial property, intellectual property, or other rights of

Sanken or third parties, that stem from these examples.

The user must take responsibility for considering and determining which objects the products in this document are used with.

Although Sanken will continue to improve the quality and reliability of its products,

semiconductor products, by their nature, have certain fault and failure rates. The user must take responsibility for designing and checking to secure the device and system so that a part failure may not lead

to human injury, fire, damages, or other losses.

The contents in this document must not be transcribed or copied without Sanken’s written consent.

2010/08

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

AC100V

AC240V

Output Power

0

10

20

30

40

50

60

70

80

90

100

0

10

20

30

40

50

60

70

80

AC100V

AC240V

Output Power

Operation Mode Transitions

Reference: Efficiency Characteristics (Wide Input, 70W Power Supply)

G

GG

GN

NN

ND

DD

D

1

3

Vcc

Cont．

S

SS

ST

TT

TR

RR

R-

--

-Y

YY

Y6

66

67

77

70

00

00

00

0

6

5

GND

4

2

V

VV

Vo

oo

ou

uu

ut

tt

t

/OLP

FB

BD

D/ST

S/OCP

7

V

VV

VA

AA

AC

CC

C

NF

100VAC

240VAC

100VAC

240VAC

Standby

Bottom-Skip

Quasi-Resonant

(Burst-Oscillation Operation)

Min. Load

Max. Load