STR-Y6700_14 Datasheet, PDF (1/34 Pages) Sanken electric – Quasi-Resonant Controllers with Integrated Power MOSFET

Quasi-Resonant Controllers with Integrated Power MOSFET
STR-Y6700 Series
General Descriptions
The STR-Y6700 series are power ICs for switching
power supplies, incorporating a MOSFET and a
quasi-resonant controller IC.
Including an auto standby function in the controller,
the product achieves the low standby power by the
automatic switching between the PWM operation in
normal operation, one bottom-skip operation under
medium to light load conditions and the burst-oscillation
under light load conditions.
The product achieves high cost-performance power
supply systems with few external components.
Features
 Multi-mode Control
The optimum operation depending on load conditions
is changed automatically and is achieved high
efficiency operation across the full range of loads.
Operation Mode
Normal load -------------------------Quasi-resonant mode
Medium to light load -------------One bottom-skip mode
Light load -------------------------- Burst oscillation mode
(Auto standby function)
 No load power consumption
P_IN < 30 mW (100VAC)
P_IN < 50 mW (230VAC)
 Leading Edge Blanking Function
 Bias Assist Function
 Built-in startup circuit reduces
 Protections
Overcurrent Protection 1 (OCP1); Pulse-by-Pulse,
with Input Compensation Function
Overcurrent Protection 2 (OCP2)⁽¹⁾; latched shutdown
Overload Protection (OLP); latched shutdown
Overvoltage Protection (OVP); latched shutdown
Thermal Shutdown Protection (TSD); latched shutdown
(1) _{Products with the last letter "A" don’t have the}
OCP2 function.
Typical Application Circuit
VAC
BR1
C1
U1
STR-Y6700
1 2 3 4 5 67
T1 D51
P
C51
S
L51
R54
PC1 ^R51
R55
R52
D2
R2
C3
D
C52 R53
U51
R56
DZBD
RBD1
VOUT(+)
C53
VOUT(-)
ROCP
R3
C4 C5 PC1
CBD
RBD2
CY
Package
TO220F-7L
Not to Scale
Lineup
 Electrical Characteristics
Products
STR–Y6735
STR–Y6735A
V_DSS(min.)
500 V
STR–Y6753
STR–Y6754
650 V
STR–Y6766
STR–Y6766A
STR–Y6765
800 V
STR–Y6763
STR–Y6763A
R_DS(ON)(max.)
0.8 Ω
1.9 Ω
1.4 Ω
1.7 Ω
2.2 Ω
3.5 Ω
 Output Power, P_OUT(2)
Products
P_OUT (Open frame)
380VAC
85~265VAC
STR–Y6735
STR–Y6735A
120 W(100VAC)
–
STR–Y6753
100 W
60 W
STR–Y6754
STR–Y6766
STR–Y6766A
STR–Y6765
STR–Y6763
STR–Y6763A
120 W
140 W
120 W
80 W
67 W
80 W
70 W
50 W
(2) _{The output power is actual continues power that is measured at}
50 °C ambient. The peak output power can be 120 to 140 % of
the value stated here. Core size, ON Duty, and thermal design
affect the output power. It may be less than the value stated here.
Applications
 White goods
 Office automation equipment
 Industrial equipment
STR-Y6700 - DS Rev.4.0
SANKEN ELECTRIC CO.,LTD.
1
Oct. 07, 2014
http://www.sanken-ele.co.jp/en/