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RT9284A-15PJ6E Datasheet(PDF) 4 Page - Richtek Technology Corporation |
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RT9284A-15PJ6E Datasheet(HTML) 4 Page - Richtek Technology Corporation |
4 / 14 page 4 RT9284A/B www.richtek.com DS9284A/B-05 August 2007 Absolute Maximum Ratings (Note 1) Supply Input Voltage ------------------------------------------------------------------------------------------------------ −0.3V to 7V LX Input Voltage ----------------------------------------------------------------------------------------------------------- −0.3V to 22V OVP Voltage ---------------------------------------------------------------------------------------------------------------- −0.3V to 22V The Other Pins ------------------------------------------------------------------------------------------------------------- −0.3V to 6V Power Dissipation, PD @ TA = 25 °C TSOT-23-5 ------------------------------------------------------------------------------------------------------------------- 0.455W TSOT-23-6 ------------------------------------------------------------------------------------------------------------------- 0.455W Package Thermal Resistance (Note 4) TSOT-23-5, θJA ------------------------------------------------------------------------------------------------------------- 220°C/W TSOT-23-6, θJA ------------------------------------------------------------------------------------------------------------- 220°C/W Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------------- 260 °C Junction Temperature ----------------------------------------------------------------------------------------------------- 150 °C Storage Temperature Range -------------------------------------------------------------------------------------------- −65°C to 150°C ESD Susceptibility (Note 2) HBM (Human Body Mode) ---------------------------------------------------------------------------------------------- 2kV MM (Machine Mode) ------------------------------------------------------------------------------------------------------ 200V Recommended Operating Conditions (Note 3) Supply Input Voltage ------------------------------------------------------------------------------------------------------ 2.7V to 5.5V Junction Temperature Range -------------------------------------------------------------------------------------------- −40°C to 125°C Ambient Temperature Range -------------------------------------------------------------------------------------------- −40°C to 85°C Electrical Characteristics To be continued (VIN = 3.7V, TA = 25 °C unless otherwise specified) Parameter Symbol Test Condition Min Typ Max Units System Supply Input Operation voltage Range VDD 2.7 -- 5.5 V Under Voltage Lock Out VDD 1.8 2.2 2.5 V Quiescent Current IDD FB = 1.5V, No switch 50 300 1000 uA Supply Current IDD FB = 0V, Switch 0.1 2 3 mA Shut Down Current IDD VEN < 0.4V -- -- 1 uA Line Regulation VIN : 3.0~4.3V -- 3 -- % Oscillator Operation Frequency fOSC 0.9 1.2 1.5 MHz Maximum Duty Cycle 85 -- -- % Dimming Frequency 100 -- 100k Hz Reference Voltage RT9284A 1.173 1.235 1.296 V Feedback Voltage (Note 5) RT9284B 0.237 0.25 0.263 V |
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