TS19453

Preliminary TS19453 AC/DC Programmable Current WLED Driver w/PWM Dimming Control SOP-8 Pin Definition: 1. Rsense 8. Drain 2. Ground 7. Drain 3. PWMD 6. Drain 4. Vdd 5. Ground General Description The TS19453 is a PWM high efficiency programmable current LED driver with PWM dimming control IC. It allows efficient operation of LED strings from voltage source ranging up to 400VDC. 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 programmable up to 50mA. 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 ● ● ● ● ● ● Adjust constant output current up to 50mA(typ) Universal 85~264VAC operation Over temperature protection with hysteresis PWM dimming Fixed off-time buck converter Internal 475V power MOSFET Typical Application Circuit Application ● ● Decorating LED lighting LED lamps with AC or DC operation. Ordering Information Part No. TS19453CS RLG Package SOP-8 Packing 2.5Kpcs/13” Reel Note: “G” denote for Halogen Free Product Absolute Maximum Rating Parameter Input Voltage Range VDD to GND PMWD, Rsense to GND Power Dissipation @ TA=25ºC Operating Ambient Temperature Storage Temperature Range Thermal Resistance – Junction to Ambient PD TOPR TSTG RθJA...