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MP3308DL Datasheet(PDF) 3 Page - Monolithic Power Systems |
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MP3308DL Datasheet(HTML) 3 Page - Monolithic Power Systems |
3 / 13 page MP3308 – STEP-UP WHITE LED DRIVER WITH DUAL PWM DIMMING INPUT CONTROL MP3308 Rev. 1.02 www.MonolithicPower.com 3 7/19/2012 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2012 MPS. All Rights Reserved. ELECTRICAL CHARACTERISTICS VIN = VEN = 5V, TA = 25°C, unless otherwise noted. Parameters Symbol Condition Min Typ Max Units Operating Input Voltage VIN 2.5 6 V Supply Current (Shutdown) IIN_SD VEN = 0V 25 30 µA Supply Current (Quiescent) IIN_QS VISET = 0.3V 860 µA Switching Frequency fSW 1.7 2.2 2.7 MHz Maximum Duty Cycle DMAX VISET = 0V 90 % Under Voltage Lockout VIN Under Voltage Lockout VUVLO VIN Rising 2.1 2.3 V Under Voltage Lockout Hysteresis 30 mV Over-Voltage Protection Threshold VOVP VOUT Rising 0.9 V Enable and Dimming EN/PWMIX OFF Threshold VLOGIC_LOW VEN Falling 0.4 V EN/PWMIX ON Threshold VLOGIC_HIGH VEN Rising 1.8 V True PWM Dimming Duty Accuracy ∆DDPWM D_PWMIA=D_PWMIB=70% ±3 % Feedback ISET Voltage VISET VEN > 2V 185 200 215 mV ISET Input Bias Current VISET = 0.2V -600 -300 nA Output Switch SW On-Resistance RON 0.4 Ω SW Current Limit Duty Cycle = 60% 1.33 A Thermal Shutdown 150 °C LED Switch ON-Resistance (M2 in the functional block diagram) 0.8 Ω |
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