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TD8201 Datasheet(PDF) 5 Page - TECHCODE SEMICONDUCTOR, INC. |
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TD8201 Datasheet(HTML) 5 Page - TECHCODE SEMICONDUCTOR, INC. |
5 / 11 page ![]() December, 20, 2011 Techcode Semiconductor Limited www.techcodesemi.com 5 Techcode® White LED Step-up Converter TD8201 DATASHEET Electrical Characteristics The following specifications apply for VIN= VEN =3.6V TA=25 oC, unless specified otherwise. Symbol Parameter Test Conditions TD8201 Unit Min. Typ. Max. VIN Input Voltage 3.0 5.5 V VFB FB Pin Voltage Driving 4xLED@20mA 94 104 114 mV Isw SW Pin leakage Current VEN =0, VSW =20V 1 µA Ioff Operating Current(Shutdown) 0.1 1 µA Isby Operating Current(Quiescent) VFB=0.5V 100 350 µA Fsw Switching Frequency 1.0 1.25 1.5 MHz Dmax Maximum Duty Cycle VFB=0V 85 90 % VEN_H EN Minimum High Level 1.5 V VEN_L EN Maximum Low Level 0.4 V RON SW On Resistance 1.4 Ω ILIMIT SW Current Limit 400 mA VOV Open Circuit Shutdown Threshold VOV Rising 20 V VIN Input Voltage 3.0 5.5 V |
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