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RC5054 Datasheet(PDF) 3 Page - Fairchild Semiconductor |
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RC5054 Datasheet(HTML) 3 Page - Fairchild Semiconductor |
3 / 13 page PRODUCT SPECIFICATION RC5054A 3 Absolute Maximum Ratings Recommended Operating Conditions Thermal Characteristics NOTE: 1. θJA is measured with the component mounted on an evaluation PC board in free air. 17 LGATE Connect LGATE to the lower MOSFET gate. This pin provides the gate drive for the lower MOSFET. 18 VCC Provide a 12V bias supply for the chip to this pin. 19 OVP The OVP pin can be used to drive an external SCR in the event of an overvoltage condition. 20 RT This pin provides oscillator switching frequency adjustment. By placing a resistor (RT) from this pin to GND, the nominal 200KHz switching frequency is increased according to the following equation: Conversely, connecting a pull-up resistor (RT) from this pin to VCC reduces the switching frequency according to the following equation: Min. Max. Power Input Voltage, VIN 6V Supply Voltage, VCC +13.5V Boot Voltage, VBOOT - VPHASE +13.5V VCC or I/O Voltage GND -0.3V VCC + 0.3V ESD Classification Class 2 Min. Max. Supply Voltage, VCC +12V -10% +12V +10% Ambient Temperature Range 0 °C 70 °C Junction Temperature Range 0 °C 125 °C Parameter Conditions Min. Typ. Max. Units Thermal Resistance1 θJA SOIC Package SOIC Package With 3in2 of Copper 110 86 °C/W °C/W Maximum Junction Temperature Plastic Package 150 °C Maximum Storage Temperature Range -65 150 °C Maximum Lead Temperature Soldering 10s 300 °C Pin Definitions (continued) Pin Number Pin Names Pin Function Description F S 200kHz 3.5 10 6 × KHz x Kohm [] R T Kohm [] ------------------------------------------------------------ + = R T to GND ( ) F S 200kHz 310 5 × KHz x Kohm [] R T Kohm [] -------------------------------------------------------- – = R T to 12V () |
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