STR-W6200D Series
Power IC for PWM Type Switching Power Supply
with Low Noise and Low Standby Power
■
General Descriptions
The STR-W6200D series products are power ICs for switching power supplies,
incorporating a power MOSFET and a current-mode type 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 condition. The product achieves
high cost-performance power supply systems with few external components.
■
Features
TO-220F-6
ꢀ
ꢀ
Current-Mode Type PWM Control
PWM with Jittering Function
The function reduces the EMI noise and enables simplified (low-cost) EMI filters.
The jittering period is adjustable by an external capacitor.
Auto-Standby Function
ꢀ
The burst-oscillation enables the low standby power.
Input Power PIN < 100mW at no load
ꢀ
ꢀ
Built-in Startup Circuit, enabling low power consumption
Overcurrent Protection (OCP) with Built-in Input Compensation Circuit
The function has less AC input voltage dependency.
ꢀ
ꢀ
Overload Protection (OLP) with Built-in Delay Timer ( the delay time is adjustable by an external capacitor)
External Latch Protection (ELP)
The function enables the latch shutdown by external signal.
Bias-Assist Function, reducing operating VCC voltage drop
The function improves the startup operation and makes a low VCC capacitor applicable.
Leading Edge Blanking Function
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
Slope Compensation Function
Built-in Avalanche Energy Guaranteed High-Voltage Power MOSFET
Various Protections
Overcurrent Protection (OCP)---------------------------------- Pulse-by-Pulse
Overload Protection (OLP) ------------------------------------- Auto-Restart
Overvoltage Protection (OVP) --------------------------------- Latch Shutdown
Thermal Shutdown Protection (TSD) ------------------------- Latch Shutdown
■
■
Applications
Switching Power Supplies for
Home Appliances (White Goods), Digital Consumer Equipment, OA Equipment, Industry Machines,
Communication Devices, Others
Product Lineup
fOSC
(kHz)
MOSFET
VDSS (MIN) (V)
R
DS(ON)(MAX)
Product No.
(Ω)
STR-W6251D
STR-W6252D
STR-W6253D
67
67
67
650
650
650
3.95
2.8
1.9
2010/08