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TLE6389-2GV50 Datasheet, PDF (5/38 Pages) Infineon Technologies AG – Step-Down DC/DC Controller | |||
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TLE 6389
Pin No
10
11
12
13
14
Symbol
RO
BDS
GDRV
VS
CS
Function
Reset output.
Open drain output from undervoltage reset comparator at the adjustable
version (TLE6389-2 GV),
Pull down structure with an internal 20k⦠pull up resistor to VOUT at the
5V version (TLE6389-2 GV50 and TLE6389-3 GV50).
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.
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.
Device supply input.
Connect a 220nF ceramic cap close to the pin in addition to the low ESR
tantalum input capacitance.
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.
Datasheet Rev. 2.1
5
2007-08-13
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