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FAN5235 Datasheet(PDF) 3 Page - Fairchild Semiconductor |
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FAN5235 Datasheet(HTML) 3 Page - Fairchild Semiconductor |
3 / 15 page FAN5235 REV. 1.3.3 1/3/02 3 Absolute Maximum Ratings1 Note: 1. Stresses beyond "Absolute Maximum Ratings" may cause permanent device damage. Continuous exposure to absolute maximum rating conditions may affect device reliability. Functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specification is not implied. Recommended Operating Conditions Thermal Information ISEN5 21 Current Sense for 5V. This pin should be connected to the drain of the bottom Mosfet using appropriate resistor and RC filter. See Application Section. SW5 22 High Side Driver Source and Low Side Driver Drain Switching Node. Switching node for 5V. HSD5 23 High side FET driver for 5V. Connect this pin directly to the gate of an N-channel MOSFET. The trace from this pin to the MOSFET gate should be < 1". CPUMP5 24 Charge Pump 5V. High side Gate drive voltage for 5V. High side Gate drive voltage for 5V. This pin is to be connected to SW5 through a 100nF cap. and to 5V-ALWAYS through a diode. Parameter Conditions Min. Typ. Max. Units VIN -0.3 27 V SW, ISEN Pins,SDWN Pin -0.3 27 V CPUMP, HSD Pins -0.3 33 V SDN, VFB, V_always pins -0.3 6.5 V CPUMP to SW pins, and all other pins -0.3 6.5 V The sum of the load currents on pins 2 and 6 must not exceed 60mA total Input Voltage, VIN +5.4V to 24V Ambient Temperature, TA -20°C to 85°C Thermal Resistance, θ JA 88°C/W Thermal Resistance, θ JC QSOP 28.5°C/W TSSOP 16°C/W Maximum Junction Temperature 150°C Storage Temperature Range -65°C to 150°C Maximum Lead Temperature, Soldering 10 Sec 300°C Pin Description (Continued) Pin Name Pin Number Pin Function Description |
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