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TS19452 Scheda tecnica(PDF) 1 Page - Taiwan Semiconductor Company, Ltd |
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TS19452 Scheda tecnica(HTML) 1 Page - Taiwan Semiconductor Company, Ltd |
1 / 7 page TS19452 AC/DC WLED Driver with Internal MOSFET Universal Switch Mode 1/7 Version: A12 SOP-8 General Description The TS19452 is a PWM high efficiency LED driver control IC. It allows efficient operation of LED strings from voltage source ranging up to 450VDC. It includes an internal high voltage switching MOSFET controlled with fixed off-time of approximately 12µS. The LED string is driven at constant current, thus providing constant light output and enhanced reliability. The output current is internally fixed at 100mA. The peak current control scheme provides good regulation of the output current throughout the universal AC line voltage range of 85~264VAC or DC input voltage of 20~400V Features ● Constant output current at 100mA(typ) ● Universal 85~264VAC operation ● Fixed off-time buck converter ● Internal 475V power MOSFET ● Low inductance value at 4.7mH (typ) Typical Application Circuit Application ● Decorating LED lighting ● LED lamps with AC or DC operation. Ordering Information Part No. Package Packing TS19452CS RLG SOP-8 2.5Kpcs / 13” Reel Note: “G” denote for Halogen Free Product Absolute Maximum Rating Parameter Symbol Limit Unit Input Voltage Range VIN to GND ~ +475 V Supply Current IDD 400 uA Power Dissipation @ TA=25ºC PD 2500 mW Operating Ambient Temperature TOPR -40 to +85 ºC Storage Temperature Range TSTG -65 to +150 oC Junction Temperature Range TJ -40 to +150 oC Thermal Resistance – Junction to Ambient RθJA 65 oC/W Note: Stresses beyond those listed under ”Absolute Maximum Ratings” may cause permanent damage to the device. These are stress rating only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Pin assignment: 1. Drain 8. Ground 2. Drain 7. Ground 3. Drain 6. Ground 4. Vdd 5. Ground |
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