AN8028 - Self-excitation RCC Artificial Resonance Type Power

AN8028 - Self-excitation RCC Artificial Resonance Type Power

The AN8028 is an IC for controlling the switching power supply, employing the RCC artificial resonance type control method.
It is compact, equipped only with the necessary minimum functions.
The maximum ON period and the minimum OFF period can be separately set by using the external capacitor and resistor respectively.
It is suitable for the power supply of AV equipments. n
Features
• Operating supply voltage range :Stop voltage (8.6V typ.) to
34V
• Output block employing the totem pole system
• Power MOS-FET can be directly driven.
(Output peak current : ±1A max.)
• Small pre-start operating current (95 µA typ.) allows the start resistor to be small-sized.
• Pulse-by-pulse overcurrent protection function built-in
• Incorporated circuit preventing malfunction under low voltage (Start/Stop : 14.9/8.6V)
• Overvoltage protective function built-in (external reset allowed)
• Timer latch function built-in
• Frequency (VF) control function built-in
• 9-pin SIP package (overseas production allowed)