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ACT4060ASH-T Datasheet(PDF) 3 Page - Active-Semi, Inc |
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ACT4060ASH-T Datasheet(HTML) 3 Page - Active-Semi, Inc |
3 / 12 page ACT4060A Rev 1, 25-Jun-09 Innovative Power TM - 3 - www.active-semi.com Copyright © 2009 Active-Semi, Inc. ABSOLUTE MAXIMUM RATINGS PARAMETER VALUE UNIT IN Supply Voltage -0.3 to 28 V SW Voltage -1 to VIN + 1 V BS Voltage VSW - 0.3 to VSW + 8 V EN, FB, COMP Voltage -0.3 to 6 V Continuous SW Current Internally Limited A Junction to Ambient Thermal Resistance (θJA) 105 °C/W Maximum Power Dissipation 0.76 W Operating Junction Temperature -40 to 150 °C Storage Temperature -55 to 150 °C Lead Temperature (Soldering, 10 sec) 300 °C ELECTRICAL CHARACTERISTICS (VIN = 12V, TA = 25°C, unless otherwise specified.) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Input Voltage VIN VOUT = 3.3V, ILOAD = 0A to 1A 4.5 24 V Feedback Voltage VFB 4.5V ≤ VIN ≤ 24V, VCOMP = 1.5V 1.267 1.293 1.319 V High-Side Switch On Resistance RONH 0.18 Ω Low-Side Switch On Resistance RONL 4.5 Ω SW Leakage VEN = 0 0 10 µA Current Limit ILIM 2.4 2.85 A COMP to Current Limit Transconductance GCOMP VIN = 12V, VOUT = 5V 1.8 A/V Error Amplifier Transconductance GEA ΔICOMP = ±10µA 650 µA/V Error Amplifier DC Gain AVEA 4000 V/V Switching Frequency fSW 350 400 450 kHz Short Circuit Switching Frequency VFB = 0 60 kHz Maximum Duty Cycle DMAX VFB = 1.1V 95 % Minimum Duty Cycle VFB = 1.4V 0 % Enable Threshold Voltage Hysteresis = 0.1V 0.7 1 1.3 V Enable Pull-Up Current Pin pulled up to 4.5V typically when left unconnected 2 µA Supply Current in Shutdown VEN = 0 10 20 µA IC Supply Current in Operation VEN = 3V, VFB = 1.4V 0.55 mA Thermal Shutdown Temperature Hysteresis = 10°C 160 °C : 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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