STR6251 데이터 시트보기 (PDF) - Sanken Electric co.,ltd.
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STR6251 Datasheet PDF : 13 Pages
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STR-W6251D,
STR-W6252D, and
STR-W6253D
PWM Off-Line Switching Regulator ICs
Features and Benefits (continued)
▪ Built-in startup circuit: reduces power consumption in standby
operation, and eliminates external components
▪ Bias-Assist function: improves startup operation, suppresses
VCC pin voltage drop in operation, and allows use of smaller
VCC capacitor
▪ Built-in Leading Edge Blanking function
▪ Protection Functions:
▫ Overcurrent Protection function (OCP); pulse-by-pulse,
built-in compensation circuit to minimize OCP point variation
on AC input voltage
▫ Overload Protection function (OLP); auto restart, built-in
timer, reduces heat during overload condition, and few
external components required
▫ External Latch Protection function (ELP): latched shutdown
by external signal
▫ Overvoltage Protection function (OVP): latched shutdown
▫ Thermal Shutdown function (TSD); latched shutdown
Selection Guide
Part Number
fOSC
(kHz)
MOSFET
VDSS(min)
(V)
RDS(on)
(max)
(Ω)
POUT*
(W)
230 VAC
85 to
265 VAC
STR-W6251D
3.95
45
30
STR-W6252D 67
650
2.8
60
40
STR-W6253D
1.9
90
60
*The listed output power is based on the thermal ratings, and the
peak output power can be 120% to 140% of the value stated here.
At low output voltage and short duty cycle, the output power may
be less than the value stated here.
STR-W6200D-DS
SANKEN ELECTRIC CO., LTD.
2
November 12, 2012
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