YB1508 YOBON TECHNOLOGIES,INC., YB1508 Datasheet
YB1508
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YB1508 Summary of contents
Page 1
... To control LED brightness, the LED current can be pulsed by applying a PWM (pulse width modulated) signal with a frequency range of 100Hz to 50KHz to the CTRL pin. The YB1508 is available in a low profile 5-lead SOT-23 package. Typical Application Circuit Figure 1：Typical Application Circuit YB1508 MRev1.4 ...
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... Order Number Package Type High Ovp YB1508 Low Ovp YB1508P YB1508 MRev1.4 Step-up DC-DC Converter , White LED Driver Figure 2：YB1508 SOT23-5 Description VCTRL < 0.4V chip is off Switching from 0.4V to 2.0V, PWM duty cycle controls the LED current Supplied as SOT23-5 3000 units Tape & Reel SOT23-5 3000 units Tape & ...
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... Switch Vcesat Switch Current Limit Switch Leakage Current VCTRL for Full LED current CTRL Pin Bias Current Chip turn off delay Over Voltage Protection YB1508 MRev1.4 Step-up DC-DC Converter , White LED Driver Maximum Junction Temp,Tj 40V 10V Lead Temperature sec) Thermal Resistance Conditions Iout =20mA, Vout = 12 ...
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... Inductor Selection A 22uH inductor is recommended for most YB1508 applications. Although YB1508 MRev1.4 Step-up DC-DC Converter , White LED Driver Figure 3. Block Diagram small size and high efficiency are major ...
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... CTRL voltage from 0.4V to 1.8V. Using the PWM mode, the LED current can be controlled from 0% to 100%. Open Circuit Protection The YB1508 has an internal open-circuit Figure 4. Dimming Control Using a DC Voltage YB1508 MRev1.4 Step-up DC-DC Converter , White LED Driver protection circuit. When the LEDs are ...
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... Figure 6. Li-Ion to Two White LEDs Application Circuit Figure 7. Li-Ion to Three White LEDs Application Circuit Figure 8. Four White LEDs Application Circuit YB1508 MRev1.4 Step-up DC-DC Converter , White LED Driver WWW.YOBON.COM.TW YB1508 6 ...
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... All the contents in this datasheet are not assuming any responsibility for use of any circuitry described, no circuit patent license are implied and Yobon reserves the right at any time without notice to change said circuitry and specifications. YB1508 MRev1.4 Step-up DC-DC Converter , White LED Driver WWW.YOBON.COM.TW ...