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PAM2841 Datasheet(PDF) 1 Page - Power Analog Micoelectronics |
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PAM2841 Datasheet(HTML) 1 Page - Power Analog Micoelectronics |
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1 / 14 page  Typical Application PAM2841 1.5A SW Current, 40V Precision WLED Driver Features Applications Capable of Driving 10 or more WLEDs Chip Enable with Soft-start Analog and PWM Dimming Low Quiescent Current 1MHz Over Current Protection Over Voltage Protection Thermal Protection UVLO Tiny Pb-Free Packages (RoHS Compliant): MSOP-8 and DFN 2X2 WLED Driver System protection protection LED dimming can be done by four methods as described in the Application Information hereinafter. n Description The PAM2841 is a white LED driver, capable of driving 10 or more WLEDs in series (depending on forward voltage of the LEDs) with a range of input voltages from 2.7V to 5.5V. The PAM2841 features over current , over voltage , under voltage lockout and over temperature protection, which prevent the device from damage. n n n n n n n n n n n Peak Efficiency up to 90% Fixed Frequency of 1 www.poweranalog.com , Power Analog Microelectronics Inc 08/2008 Rev 1.3 10 LEDs PAM2841 GND SW VIN OVP ENA FB Comp PGND V IN L1 22 H μ D1(SS14) R3 10Ω C4 10nF C3 1F μ C2 1F μ C1 10 F μ R1 910kΩ R2 27kΩ 3x9 LEDs PAM2841 GND SW VIN OVP ENA FB Comp PGND V IN L1 22 H μ D1(SS14) R3 1.1Ω C4 10nF C3 1F μ C2 1F μ C1 10 F μ R1 910kΩ R2 27kΩ |
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