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PDF TLE4252D Data sheet ( Hoja de datos )
| Número de pieza | TLE4252D | |
| Descripción | Tracking Regulator | |
| Fabricantes | Infineon Technologies AG | |
| Logotipo |  |
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Tracking Regulator
TLE 4252
Features
• Output tracking tolerance to reference ≤ ±0.2%
• Output voltage adjust down to 1.5 V
• 250 mA output current capability
• Enable function
• Very low current consumption in OFF mode
• Wide operation range: up to 40 V
• Wide temperature range: -40 °C ≤ Tj ≤ 150 °C
• Output protected against short circuit to GND and
Battery
• Overtemperature protection
• Reverse polarity proof
P-TO252-5-1
Short Functional Description
The TLE 4252 is a monolithic integrated low-drop voltage tracking regulator in a very
small SMD package P-TO252-5-1. It is designed to supply off-board systems, e.g.
sensors in engine management systems under the severe conditions of automotive
applications. Therefore the device is equipped with additional protection functions
against reverse polarity and short circuit to GND and battery.
With supply voltages up to 40 V the output voltage follows a reference voltage applied at
the adjust input with high accuracy. The reference voltage applied directly to the adjust
input or by an e.g. external resistor divider can be 1.5 V at minimum.
The output is able to drive loads up to 250 mA at minimum while they follow e.g. the 5 V
output of a main voltage regulator as reference with high accuracy.
The TLE 4252 tracker can be switched into stand-by mode to reduce the current
consumption to very low values. This feature makes the IC suitable for low power battery
applications.
Type
TLE 4252 D
Data Sheet
Ordering Code
Q67006-A9669
1
Package
P-TO252-5-1, -11
Rev. 1.3, 2005-11-22
1 page  
TLE 4252
Table 3
Operating Range
Parameter
Symbol
Limit Values Unit Remarks
Min. Typ. Max.
In- and Output Voltage
Supply voltage
VI
Enable input voltage VEN
Adjust input voltage VADJ
Adjust input voltage VADJ
Error amplifier
CMR
common mode range
Temperature
3.5 –
0–
1.5 –
0–
1.5 –
40 V
40 V
40 V
1.5 V
VI - V
0.5
VI > VADJ + Vdr
–
–
VQ ≤ VADJ + ∆VQ
VQ ≤ VADJ + ∆VQ with
VFB = VQ
Junction temperature Tj
-40
Thermal Resistance P-TO252-5-1
Junction to ambient Rthj-a
Junction to ambient Rthj-a
–
–
–
–
–
150 °C –
144 K/W Footprint only1)
78 K/W Heat sink area
300 mm2 1)
Junction to ambient Rthj-a
–
–
55 K/W Heat sink area
600 mm2 1)
Junction to case
Rthj-c
–
–
2
K/W –
1) Worst case regarding peak temperature; zero airflow; mounted on FR4; 80 × 80 × 1.5 mm3; 35 µ Cu; 5 µ Sn
Note: Within this operating range the IC is functional. The electrical characteristics,
however, are not guaranteed over this full range given above.
Data Sheet
5 Rev. 1.3, 2005-11-22
5 Page 
TLE 4252
5.8
0.8
5.36
Figure 6
Foot Print for P-TO-252-5-1 and P-TO-252-5-11 (Plastic Transistor
Single Outline)
You can find all of our packages, sorts of packing and others in our
Infineon Internet Page “Products”: http://www.infineon.com/products.
SMD = Surface Mounted Device
Data Sheet
11
Dimensions in mm
Rev. 1.3, 2005-11-22
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet TLE4252D.PDF ] | |
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