HV98100/HV98101 Non-Dimmable, Off-Line, LED Driver with Low Total Harmonic Distortions Features Description The HV98100/HV98101 LED driver integrated circuit Good LED Current Regulation (IC) is an off-line, high-power factor, buck-boost - Better than 5% accuracy controller targeted at general LED lighting products, Valley Switching Buck-Boost Converter with such as LED lamps and LED lighting fixtures with a Power Factor Correction (PFC) maximum power rating of about 15W. - 0.97 Power Factor (typical) Valley-switching buck-boost converters are preferred in - 5% Total Harmonic Distortion (THD) (typical) off-line applications since they reduce switching losses. Uses a Standard Off-the-Shelf Inductor A typical solution is to pair a constant on-time control - No auxiliary winding required scheme with valley switching to achieve both a high-power factor and good efficiency. However, this Single Input Voltage Range control scheme results in a higher total harmonic distor- - HV98100: 110 V 15% AC tion, and the actual value is dependent on the input and - HV98101: 230 V 15% AC output voltages. The HV98100/HV98101 uses a unique Supports 5W-15W Output Power control scheme to achieve a high-power factor and low Space-saving SOT-23-6L Package THD simultaneously under all line and load conditions, while maximizing efficiency utilizing valley switching. The average LED current is also controlled in a closed- Applications loop manner to achieve high LED accuracy. LED Lamps Other unique features of the ICs are the bootstrap of LED Lighting Fixtures the IC supply voltage from the output, as well as the unique valley-sensing scheme that allows the use of a standard of f-the-shelf inductor to minimize the overall system cost. Applications with low-output voltage can be . accommodated using a coupled inductor Package Types HV98100/HV98101 6-Lead SOT-23 GATE IND 1 6 PV GND 2 5 DD 3 CS COMP 4 See T 3-1able for pin description. 2016 Microchip Technology Inc. 1DS20005640A-page GT R REF HV98100/HV98101 Typical Application Circuit D R HV HV P VDD C PVDD M HV98100/1 GT BBT COMP R PVDD CS C COMP C REC D BBT R CS R VD D LED PVDD C O L BBT D VD V AC Internal Block Diagram OCP I VO Fault FLT Gate Pr otection P P VDD VDD I VO POR I VO IND VDD /VDD on of f Valley Detect Reg Gate GATE A VDD f GT ON sta rt Startup Monoshot clock Max F req POR P VDD Gate Clock Vton ref Monoshot GATE S Q ST RT UP RESET V TON Gate R Q FLT THD GND control OCP REF Gate COMP OCP Gate LEB CS REF POR CS DS20005640A-page 2 2016 Microchip Technology Inc. Valley Det GND IND DET VAL RESET IN