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AP3844GM Datasheet(PDF) 1 Page - BCD Semiconductor Manufacturing Limited |
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AP3844GM Datasheet(HTML) 1 Page - BCD Semiconductor Manufacturing Limited |
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1 / 13 page  GREEN MODE PWM CONTROLLER AP384XG Data Sheet 1 Aug. 2005 Rev. 1. 2 BCD Semiconductor Manufacturing Limited General Description The AP384XG is a Green Mode PWM controller. It is specially designed for off-line AC-DC adapter and bat- tery charger applications where both needs for low standby power and high efficiency in normal operation are required. In a well designed product, the AP384XG is capable to allow the system consuming only 0.5W power in standby mode. In normal operation, the AP384XG features adjustable frequency by using an external resistor and capacitor combination. When output power falls below a given level, the IC automatically switches to the skip mode, which works by skipping switching cycles. The AP384XG also features low start-up and low standby operating current for its special topology. The AP384XG provides accurate protection against over-temperature, over-current and maximal output power. The AP384XG is available in SOIC-8 and DIP-8 packages. Features · Green Mode PWM Controller to Support the "Blue Angel" Norm · Adjustable Skip Cycle Mode Operation · Low Start-up Current: 50 µA (Typ.) · Low Standby Operating Current: 6mA · Internal Leading Edge Blanking · Adjustable Oscillator Frequency up to 500KHz · Totem Pole Output · Under Voltage Lock Out (UVLO) · Over-Temperature Protection · Pin to Pin Replacement for AZ384XA Applications · Off-line Converter · DC-DC Converter · DVD/STB Power Supply · Power Adapter · CRT Monitor Power Supply Figure 1. Package Types of AP384XG SOIC-8 DIP-8 |
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