
Panasonic Corporation
■ Overview
The AN8029 is an IC developed for controlling the self-excited switching power supply employing the RCC pseudo-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 set separately by using the external capacitor and resistor respectively.
It is suitable for the power supply of AV equipment.
■ Features
• Operating supply voltage range:
Stop voltage (8.6 V typical) to 34 V
• Output block employs the totem pole system.
• Power MOSFET can be directly driven. (output peak current: ±1 A maximum)
• Small pre-start operating current (95 µA typical) allows using a small size start resistor.
• Built-in pulse-by-pulse overcurrent protection function
• Incorporating the protection circuit against malfunction at low voltage (start/stop: 14.9 V/8.6 V)
• Built-in overvoltage protection function (externally resettable)
• Built-in timer latch function
• Equipped with frequency (VF) control function.
• 9-pin single inline package expands the freedom of board design
■ Applications
• Televisions, facsimiles, printers, scanners, video equipment