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IR3846M Datasheet(PDF) 6 Page - International Rectifier |
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IR3846M Datasheet(HTML) 6 Page - International Rectifier |
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6 / 54 page  IR3846 6 www.irf.com © 2015 International Rectifier Submit Datasheet Feedback June 18, 2015 ELECTRICAL SPECIFICATIONS RECOMMENDED OPERATING CONDITIONS SYMBOL DEFINITION MIN MAX UNIT PVin Input Bus Voltage * 1.5 21 V Vin Supply Voltage 5.0 21 VCC Supply Voltage ** 4.5 7.5 Boot to SW Supply Voltage 4.5 7.5 VO Output Voltage 0.6 0.86 PVin IO Output Current 0 ±35 A Fs Switching Frequency 300 1500 kHz TJ Junction Temperature -40 125 °C * SW node must not exceed 25V ** When VCC is connected to an externally regulated supply, also connect Vin. ELECTRICAL CHARACTERISTICS Unless otherwise specified, these specification apply over, 1.5V < PVin < 21V, 4.5V< VCC < 7.5V, 0 oC < T J < 125 oC. Typical values are specified at TA = 25 oC. PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT Power Loss Power Loss PLOSS Vin = PVin = 12V, VO = 1.2V, IO = 35A, Fs = 600kHz, L=0.250uH, TA = 25°C, Note 4 5.3 W MOSFET Rds(on) Top Switch Rds(on)_Top VBoot – VSW = 6.8V, ID = 35A, Without Cu Clip, Tj = 25°C 3.1 4 mΩ Bottom Switch Rds(on)_Bot VCC =6.8V, ID = 35A, With Cu Clip, Tj = 25°C 1.27 1.64 Reference Voltage Feedback Voltage VFB 0.6 V Accuracy Vref=0.6V, 0°C < Tj < 105°C -0.5 +0.5 % Vref=0.6V, -40°C < Tj < 125°C -1.0 +1.0 Sink Current Isink_Vref Vref=0.7V 12.7 16.0 19.3 µA Source Current Isrc_Vref Vref=0.5V 12.7 16.0 19.3 Vref Comparator Threshold Vref_disable Vref Pin connected externally 0.15 V Vref_enable 0.4 V |
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