yb1519 YOBON TECHNOLOGIES,INC., yb1519 Datasheet
yb1519
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yb1519 Summary of contents
Page 1
... LEDs back-lighting for large LCD panel. It can drive LEDs in series or 18 LEDs in parallel/series configuration. The wide application VIN range makes YB1519 suitable for many types of battery applications such as Li-ions, Alkaline, or Sealed Lead Acid batteries. The adjustable inductor current optimizes the performance for different output drive capability by an external resistor ...
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... No connection. 8 Iset Tie a resistor to ground to set inductor current Switch pin, connect to external inductor Switch pin, connect to external inductor. Ordering Information Order Number Package Type YB1519 YB1519 MRev.1.2 High-Power White LED Driver YB 1519 1 PGND 2 AGND GND VIN 3 Bypass MSOP 10 Figure 2 ...
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... CE,SAT LX Leakage Current EN Logic Low Level EN Logic High Level EN Input Bias Current EN Input Bias Current I Source Current SET Inductor Peak Current YB1519 MRev.1.2 High-Power White LED Driver Recommended Operating Conditions Input Supply Voltage.............................. 2.2V to 16V Operating Temperature..................... -40℃ to +85℃ Conditions V =1.23V ...
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... VIN YB1519 Bypass I FB SET PGND 1K AGND Figure 5. 2 Legs of 6 LEDs in a Series CH1: LX CH2: Inductor Current CH3: V Figure 7. Typical Switching Waveform YB1519 MRev.1.2 High-Power White LED Driver V IN 10µF 16V 4.7µF 35V 36V Bypass 2K I 10nF R FB ...
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... If the FB voltage has not yet reached the designated value of 1.23V, the inductor current will be charged up again. This charging and discharging sequence will repeat itself until the FB voltage gets to the designated value and triggers the on-off YB1519 MRev.1.2 High-Power White LED Driver VBAT CIN VIN Set ...
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... Choose a reverse breakdown of the schottky diode large than the output voltage. Thermal Consideration: When YB1519 is set to handle high switch current dissipation and thus generating heat. Always beware the amount of power dissipated during operation. To resolve the ...
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... Trace connections Package Information Note 1.48mm 1.34mm YB1519 MRev.1.2 High-Power White LED Driver made to the inductor and schottky diode should be short and wider for reducing resistor power dissipation and increase overall efficiency ...