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STR3A455D

Sanken
Part Number STR3A455D
Manufacturer Sanken
Description Off-Line PWM Controllers
Published Oct 6, 2016
Detailed Description Off-Line PWM Controllers with Integrated Power MOSFET STR3A400 Series Data Sheet Description The STR3A400 series are p...
Datasheet PDF File STR3A455D PDF File

STR3A455D
STR3A455D

Overview
Off-Line PWM Controllers with Integrated Power MOSFET STR3A400 Series Data Sheet Description The STR3A400 series are power ICs for switching power supplies, incorporating a MOSFET and a current mode PWM controller IC.
The low standby power is accomplished by the automatic switching between the PWM operation in normal operation and the burst-oscillation under light load conditions.
The product achieves high cost-performance power supply systems with few external components.
Features ● Low Thermal Resistance Package ● Improving circuit efficiency (Since the step drive control can keep VRM of secondary rectification diodes low, the circuit efficiency can be improved by low VF) ● Current Mode Type PWM Control ● Soft Start Function ● Automatic Standby Function No Load Power Consumption < 15mW ● Operation Mode Normal Operation -----------------------------PWM Mode Light Load Operation ------------------------ Green-Mode Standby ---------------------------- Burst Oscillation Mode ● Random Switching Function ● Slope Compensation Function ● Leading Edge Blanking Function ● Bias Assist Function ● Protections Two Types of Overcurrent Protection (OCP): Pulse-by-Pulse, built-in compensation circuit to minimize OCP point variation on AC input voltage Overload Protection (OLP): Auto-restart Overvoltage Protection (OVP): Latched shutdown or auto-restart Thermal Shutdown (TSD): Latched shutdown or auto-restart with hysteresis Typical Application VAC BR1 C1 C4 C5 8 7 6 5 D/ST D/ST DN/SCT D/ST U1 STR3A400 S/OCP VCC GND FB/OLP 1234 T1 D51 R1 P D1 C51 S D2 R2 C2 D L51 R54 PC1 R51 R55 R52 C52 R53 U51 R56 VOUT C53 GND ROCP C3 PC1 CY TC_STR3A400_1_R2 Package DIP8 Lineup ● Electrical Characteristics fOSC(AVG)(typ.
) = 65 kHz VDSS(min.
) = 650 V Products STR3A45× STR3A45×D Not to Scale OVP, TSD Operation Latched shutdown Auto-restart ● MOSFET ON Resistance and Output Power, POUT* POUT POUT Products RDS(ON) (Adapter) (Open frame) (max.
) AC230V AC85 ~265V ...


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