Panasonic AN8028 Data Sheet/Manual
Summary
The AN8028 is a specialized IC designed for controlling self-excited switching power supplies using the pseudo-resonance AC-DC method. This compact regulator is ideal for AV electronics, including TVs, scanners, and video equipment. The comprehensive manual details its full functionality, featuring advanced protection circuits such as built-in overcurrent and overvoltage monitoring, precise frequency control, and soft start capabilities. It equips designers with all necessary operational parameters to create reliable, high-performance power supplies.
Page 1 Text Content
查询AN8028供应商 Voltage Regulators
AN8028 Self-excited RCC pseudo-resonance type AC-DC switching power supply control IC
Unit: mm
Overview 6.0±0.3 The AN8028 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 mini- mum functions. The maximum on-period and the minimum off-pe- riod can be set separately by using the external capacitor and resistor respectively. FF It is suitable for the power supply of AV equipment.
Features 0.3+0.1 –0.05
Operating supply voltage range:
Stop voltage (8.6 V typical) to 34 V
SIP009-P-0000C
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 0. 5± 0. Equipped with frequency (VF) control function. 1. 5± 0.
9-pin single inline package expands the freedom of board design
Applications Televisions, facsimiles, printers, scanners, video equipment
Block Diagram
Signal
U.V.L.O. VREF
Current source
Switch TIM/OVP diode
FB VOUT
RS latch
0.1 V GND
4TDL Low-side High-side CLM CLM
clamp clamp
Page Summary Contents For Panasonic AN8028 Data Sheet/Manual
Manual Details
| Brand | Panasonic |
|---|---|
| Pages | 13 |
| File Size | 137.29 KB |
| Published | June 17, 2026 |
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Frequently Asked Questions
What is the AN8028 IC used for?
It controls self-excited switching power supplies, suitable for AV equipment like TVs and printers.
How can I adjust the ON/OFF timing periods?
The minimum on-period (TON) can be set using an external capacitor (C), and the minimum off-period (TOFF) uses a resistor (R).
What protection features does the AN8028 include?
It has built-in pulse-by-pulse overcurrent protection, overvoltage protection, and a timer latch function.
What is the maximum current output capability?
The peak output current capacity is up to -1 A.