|
TLE42994V33_14 Datasheet, PDF (20/33 Pages) Infineon Technologies AG – Extreme Low Current Consumption In ON State | |||
|
◁ |
TLE42994V33
Block Description and Electrical Characteristics
When dimensioning the voltage divider, take into consideration that there will be an additional current constantly
flowing through the resistors.
With a voltage divider connected, the reset switching threshold VRT,new is calculated as follows:
(3)
VRT, new
=
R-----A---D----J--,--1----+-----R----A----D----J--,--2-
RADJ, 2
Ã
V R A D J,
th
with
⢠VRT,new: the desired new reset switching threshold
⢠RADJ1, RADJ2: resistors of the external voltage divider
⢠VRADJ,th: reset adjust switching threshold given in Table 7 âElectrical Characteristics Reset Functionâ on
Page 22
Supply I
Co n tr o l
In t.
Supply
VRADJ,th
OR
GND
BlockDiagram_ResetAdjust.vsd
Figure 5 Block Diagram Reset Function
ID,ch
ID,dch
VDST
Q
RRO
RO
CQ
I RO
VDD
RRO,ext
Re se t
RADJ,1
M ic ro-
Cont rolle r
D
CD
RADJ
I RADJ
RADJ,2
GND
Data Sheet
20
Rev. 1.1, 2014-07-03
|
▷ |