TLE4254

Application Information

Data Sheet

16

Rev. 1.2, 2009-11-18

Figure 6

Application circuit: Output voltage

V

Status Output feedbacked to microcontroller (version GS / EJ S)

In order to obtain a lower output voltage

V

according to Application circuit: Output voltage VQ lower than reference voltage VREF Status Output

feedbacked to microcontroller (version GS / EJ S) has to be used. The output voltage

V

With a given reference voltage

V

for

R2

Taking into consideration also the effect of the internal EN/ADJ pull-down resistor, the external resistor divider’s

R2

EN/

ADJ

IQ

GND

TLE4254GS

TLE4254EJ S

8

5

1

micro controller

e.g.

C167,

XC16X

TC17xx

VDD

I/O

Main µC supply

e.g.

TLE4271-2

TLE4471

TLE6368...

IQ

GND

VBAT

VQ < VREF

R1

ADJ

VREF

ST

4

2, 3, 6, 7

I/O

+

----------------------------------------





⋅

=

–

---------------------------





⋅

=

,

,

⋅

,

–

----------------------------------------------------------





=