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TLE6389 Datasheet(PDF) 5 Page - Infineon Technologies AG |
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TLE6389 Datasheet(HTML) 5 Page - Infineon Technologies AG |
5 / 38 page TLE 6389 Datasheet Rev. 2.1 5 2007-08-13 10 RO Reset output. Open drain output from undervoltage reset comparator at the adjustable version (TLE6389-2 GV), Pull down structure with an internal 20k Ω pull up resistor to VOUT at the 5V version (TLE6389-2 GV50 and TLE6389-3 GV50). 11 BDS Buck driver supply input. Connect a ceramic capacitor between BDS and VS to generate clamped gate-source voltage to supply the driver of the PMOS power stage. 12 GDRV Gate drive output. Connect to the gate of the external P-Channel MOSFET. The voltage at GDRV swings between the levels of VS and BDS. 13 VS Device supply input. Connect a 220nF ceramic cap close to the pin in addition to the low ESR tantalum input capacitance. 14 CS Current-sense input. Connect current-sense resistor between VS and CS. The voltage drop over the sense-resistor determines the peak current flowing in the buck circuit. The external MOSFET is turned off when the peak current is exceeded. Pin No Symbol Function |
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