STR-W6723N SANKEN [Sanken electric], STR-W6723N Datasheet - Page 2

• Manufacturer Part Number: STR-W6723N
• Description: Power IC for Quasi-Resonant Type Switching Power Supply with High Efficiency
• Manufacturer: SANKEN [Sanken electric]

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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.
Light
Typical Application Circuit
Typical Operation Waveforms
Transitions between Bottom-Skip QR Operation and Quasi-Resonant Operation
1 Bottom
1 Bottom- - - - Skip
1 Bottom
1 Bottom
V V V V A A A A C C C C
Skip
Skip
Skip QR
Load Change
QR
QR
QR
1 1 1 1
3 3 3 3
S S S S / / / / G G G G N N N N D D D D
S S S S T T T T R R R R - - - - W W W W 6 6 6 6 7 7 7 7 0 0 0 0 0 0 0 0
D D D D
7 7 7 7
O O O O C C C C P P P P / / / / B B B B D D D D
C C C C o o o o n n n n t t t t ． ． ． ．
V V V V c c c c c c c c
SANKEN ELECTRIC CO.,LTD.
4 4 4 4
QR
5 5 5 5
S S S S S S S S / / / / O O O O L L L L P P P P
F F F F B B B B
6 6 6 6
Heavy
I
V
D
DS
Warning
140
140
120
120
100
100
140
140
120
120
100
100
80
80
60
60
40
40
20
20
80
80
60
60
40
40
20
20
0
0
0
0
0
0
0
0
STR-W6700 Input Power - Frequency
R R R R e e e e g g g g ： ： ： ： L L L L i i i i n n n n e e e e a a a a r r r r R R R R e e e e g g g g u u u u l l l l a a a a t t t t o o o o r r r r I I I I C C C C f f f f r r r r o o o o m m m m S S S S a a a a n n n n k k k k e e e e n n n n , , , , O O O O t t t t h h h h e e e e r r r r s s s s
50
50
50
50
1Skip
1Skip
U U U U V V V V L L L L O O O O I I I I n n n n t t t t e e e e r r r r m m m m i i i i t t t t t t t t e e e e n n n n t t t t O O O O s s s s c c c c i i i i l l l l l l l l a a a a t t t t i i i i o o o o n n n n C C C C i i i i r r r r c c c c u u u u i i i i t t t t E E E E x x x x a a a a m m m m p p p p l l l l e e e e
Input Power P
Input Power P
100
100
100
100
E E E E r r r r r r r r A A A A m m m m p p p p
R R R R e e e e g g g g
150
150
150
150
IN
IN
(W)
(W)
1Skip
1Skip
+ + + + B B B B
S S S S t t t t a a a a n n n n d d d d b b b b y y y y
L L L L o o o o w w w w B B B B
G G G G N N N N D D D D
O O O O N N N N / / / / O O O O F F F F F F F F S S S S i i i i g g g g n n n n a a a a l l l l
S S S S t t t t a a a a n n n n d d d d b b b b y y y y
G G G G N N N N D D D D
V V V V
O O O O U U U U T T T T
Vin(AC) = 100V
Vin(AC) = 100V
Vin(AC) = 240V
Vin(AC) = 240V
QR
QR
200
200
200
200
240VAC
100VAC
250
250
250
250
2010/08