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ACT111A Datasheet(PDF) 3 Page - Active-Semi, Inc |
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ACT111A Datasheet(HTML) 3 Page - Active-Semi, Inc |
3 / 13 page ACT111A Rev 2, 22-Oct-12 Innovative PowerTM - 3 - www.active-semi.com Copyright © 2012 Active-Semi, Inc. ABSOLUTE MAXIMUM RATINGS PARAMETER VALUE UNIT IN to GND -0.3 to 34 V SW to GND -1 to VIN + 1 V BST to GND VSW - 0.3 to VSW + 7 V FB to GND -0.3 to + 6 V Continuous SW Current Internally Limited A Junction to Ambient Thermal Resistance (θJA) 220 °C/W Maximum Power Dissipation 0.5 W Operating Junction Temperature -40 to 150 °C Storage Temperature -55 to 150 °C Lead Temperature (Soldering, 10 sec) 300 °C DIM to GND -0.3 to + 3 V PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Input Voltage VIN 4.8 30 V VIN Turn-On Voltage Input Voltage Rising 4.0 4.4 4.7 V VIN UVLO Hysteresis 250 mV Supply Operation Current VFB = 0.2V 1 2 mA Switching Frequency 1.15 1.4 1.65 MHz Maximum Duty Cycle VFB = 0.08V 90 92 95 % Minimum On-Time 75 ns Effective FB Voltage 5V ≤ VIN ≤ 20V 97 102 107 mV FB Leakage Current 100 nA CC Current Limit Duty Cycle = 5% 1.8 2.4 3.0 A PWM DIM Frequency 10 kHz DIM Threshold Voltage DIM rising 1.66 V DIM Hysteresis DIM rising 100 mV DIM Input Leakage 1 µA High-Side Switch On-Resistance 0.3 Ω Low-Side Switch On-Resistance 15 Ω Thermal Shutdown Temperature 160 °C Thermal Hysteresis 10 °C ELECTRICAL CHARACTERISTICS (VIN = 12V, TA = 25°C, unless otherwise specified.) : Do not exceed these limits to prevent damage to the device. Exposure to absolute maximum rating conditions for long periods may affect device reliability. |
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