TLE7824G Infineon Technologies, TLE7824G Datasheet - Page 18

• Manufacturer Part Number: TLE7824G
• Description: IC LDO VREG/LIN TXRX DSO-28
• Manufacturer: Infineon Technologies

Specifications of TLE7824G

• Applications: Special Purpose
• Voltage - Supply: 3.9 V ~ 27 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: DSO-28
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: SP000264461

Further details on the implementation of the calibration function and location of the calibration figures in Flash
memory can be found in a dedicated application note. The voltage measurement target parameters can be found
in
6.2
In the temperature measurement mode the typical internal analog output voltage of the on-chip temperature
sensor can be described with the first order approximation:
Where:
•
•
The output code of the ADC is given by the following equation, where
voltage and the resolution of the ADC:
The junction temperature
273.15 °C need to be subtracted to convert
The temperature measurement target parameters can be found
on Page
6.2.1
Best measurement accuracy can be obtained by applying the calibration function:
T CAL
The calibration coefficients f
microcontroller.
The selection between battery voltage and temperature measurement is done via SPI bit (see
Peripheral Interface)” on Page
Further details on the implementation of the calibration function and location of the calibration figures can be found
in a dedicated application note.
Data Sheet
V
C
T
j
A
A
“ADC Battery Voltage Measurement Interface, VBAT_SENSE” on Page
=
≈
T
m
(see
=
j
m
o
------ - m
m
is the junction temperature in Kelvin
and m
1
round
0
=
1
Table “ADC Temperature Measurement Interface” on Page
–
44.
586
m
0
1
1
Temperature Measurement Calibration Concept
Temperature Measurement
–
×
+
are typical linear fitting parameters
V
C
-------------------------------------- -
T
f 0 2 1 –
A
A
j
( )
( )
T
•
T
2
j
j
N
×
×
–
(
------------------- -
–
V
2
1
V
[
N
AREF
AREF
2 2 –
T
–
J
0 / 1
1
corresponding to the output code
+
)
f 1 2 10
,
are computed during the production test and stored in the flash memory of the
20).
V
•
A
≤
–
V
AREF
]
C
A
T
( )
j
T j
[K] into Centigrade Scale [°C].
18
C
in“ADC Temperature Measurement Interface”
A
is given by:
V
44)
AREF
[unit: K]
44.
and N denote the ADC reference
ADC Measurement Interface
Rev. 3.01, 2008-04-15
TLE7824G
“SPI (Serial
(4)
(5)
(6)
(7)