pt5615 ballast control ic tel: 886-66296288 ? fax: 886-29174598 ? http://www.princeton.com.tw ? 2f, 233-1, baociao road, si ndian, taipei 23145, taiwan description the pt5615 is a ballast control ic, with the 650v half-bridge driver and full pr otections, designed to drive all types of fluorescent lamps. the features such as programmable preheat time and frequency, programmable and precise run frequency, self-adapting ignition time regulator and auto-restart for lamp replacement, provide a high degree of flexibility for the ballast design engineers. the protection features include the filaments detection, ignition failure and end-of-life protection for lamp and the over-current protection for half bridge. it is easy to provide a protection for multi-lamp application. the pt5615 is available in both dip16 and sop16 packages. application ? electronic ballast for all types of fluorescent lamps features ? 650v half-bridge driver ? programmable and precise oscillator ? programmable preheat time and frequency ? sweeping-frequency ignition ? fixed dead time ? self-adapting ignition time regulator ? ignition failure protection ? end-of-life protection ? programmable half-bridge over-current protection ? low side and high side filaments detection ? auto-restart for lamp replacement ? support multi-lamp design block diagram
pt5615 v1.0 2 august 2010 typical application state diagram
pt5615 v1.0 3 august 2010 order information valid part number package type top code pt5615-s 16 pins, sop, 150mil pt5615-s PT5615-D 16 pins, dip, 300mil PT5615-D pin description pin description pin name description pin no. vdd ic power supply 1 gnd system ground 2 sd low side filament sensing and shut-down control 3 rf internal current bias control, connecti ng a external resistor (68k, typ.) to gnd 4 rp preheat frequent setting 5 cp preheat time setting 6 ct capacitor of the rc oscillator 7 rt resistor of the rc oscillator 8 eol1 end-of-life sensing for lamp1 9 eol2 end-of-life sensing for lamp2 10 hsfl high side filament sensing 11 cs half-bridge current sensing 12 lo low side gate driver 13 vs high side driver floating ground 14 ho high side gate driver 15 vb high side driver floating supply 16
pt5615 v1.0 4 august 2010 important notice princeton technology corporation (ptc ) reserves the right to make co rrections, modifications, enhancements, improvements, and other changes to its products and to discontinue any product without notice at any time. ptc cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a ptc product. no circuit patent licenses are implied. princeton technology corp. 2f, 233-1, baociao road, sindian, taipei 23145, taiwan tel: 886-2-66296288 fax: 886-2-29174598 http://www.princeton.com.tw
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