Panasonic AN8031 free download

File name AN8031.pdf

Voltage Regulators AN8031 Active filter control IC s Overview In supplying electric power from commercial power supply to various electrical equipment, there is a possibility that the harmonic distortion generated in the power line may give obstruction to the power facilities or other electrical equipment. The use of active filter is one of the methods to solve the harmonic distortion problems. The AN8031 is a monolithic IC which incorporates the control and protection functions into one package so that the active filter can be constructed easily. It is most suitable for the measures against the harmonic distortion problems such as lighting equipment. 6.0±0.3 2.4±0.25 3.3±0.25 Unit: mm 8 0.5±0.1 7 23.3±0.3 6 5 4 1.5±0.25 1.5±0.25 1.4±0.3 3.0±0.3 2 1 0.3 +0.1 ­0.05 s Features · Self-excited peak current mode is adapted. SIP009-P-0000C · Built-in protection circuit for preventing the overvoltage generated under a small load · Easy constant setting with enlarged dynamic range of multiplier and error amplifier. · Using totem pole output circuit which allows the power MOSFET to be directly driven. · Built-in low voltage protection circuit which ensures the on-resistance during the power MOSFET operation. · Timer circuit is built in for realizing automatic start. s Applications · Lighting equipment and switching power supply equipment s Block Diagram Under voltage Over voltage clamper clamper One shot 2.5 V VREF U.V.L.O. comp. 10 V/8 V 9 Timer Drive 1 6 SVCC VB PVCC VOUT 8 Current comp. 3 OVP comp. 2.6 V 2 Error amp. Multiplier 2.5 V 2.5 V 5 CS EI MPI 7 GND EO 4 30° 3 2.54 9 1 AN8031 s Pin Descriptions Pin No. 1 2 3 4 5 6 7 8 9 Symbol SVCC CS MPI EO EI VB GND VOUT PVCC Description Control system supply-voltage pin Comparator input pin Multiplier input pin Error amplifier output pin / multiplier input pin Voltage Regulators Error amplifier inverting input pin / overvoltage protection input pin Transformer-reset detection pin Grounding pin Output pin Power system supply-voltage pin s Absolute Maximum Ratings Parameter Supply voltage CS allowable application voltage MPI allowable application voltage EI allowable application voltage Output allowable current Peak output current VB allowable flow-in current VB allowable flow-out current Power dissipation Operating ambient temperature Storage temperature * * Symbol VCC VCS VMPI VEI IO IOP IBI IBO PD Topr Tstg Rating 35 - 0.5 to +7 - 0.5 to +7 - 0.5 to +7 ±150 ±1 +5 -5 874 -30 to +85 -55 to +150 Unit V V V V mA A mA mA mW °C °C Note) *: Expect for the operating ambient temperature and storage temperature, all ratings are for Ta = 25°C. s Recommended Operating Range Parameter Supply voltage Symbol VCC Range 0 to 34 Unit V s Electrical Characteristics at Ta = 25°C Parameter Error detection feedback threshold voltage 1 Error detection low-level output voltage Error detection high-level output voltage Error detection input bias current Error detection output supply current 2 Sy