Техническая Спецификация для Infineon Technologies Step-Down DC/DC Controller TLE 6389 DEMOBOARD TLE 6389-2 GV50 DEMOBOARD TLE 6389-2 GV50

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.