Low-Drop LED Driver
Target Data
Features
TLE 4240 G
• Output current tolerance
≤ ±
20%
• 60 mA output current
• Low drop voltage
• Suitable for use in automotive electronics
• Wide operation range: up to 45 V
150°C
T
• Wide temperature range: – 40°C
≤
≤
j
SCT 595
• Output protected against short circuit
• Overtemperature protection
• Reverse polarity proof
• Very small SMD-Package SCT 595
• Status output for open Load
Type Ordering Code Package
▼
TLE 4240 G SCT-595 (SMD)
▼ New type
Functional Description
The TLE 4240 G is a monolithic i ntegrated low -drop LED Driv er in the very small SMD
package SCT 595. It is designed to supply LEDs under the severe conditions of
automotive applications. Therefore the device is equipped with additional protection
functions against overload, short circuit and reverse polarity and overtemperature.
The output is a constant current source which drives LEDs to 60 mA within an accuracy
of ± 20%.
Data Sheet Rev. 0.2 1 2000-08-10
TLE 4240 G
Pin Configuration
(top view)
ST
GND
Ι
1
5
2
3
4
GND
Q
AEP02906
Figure 1
Pin Definitions and Functions
Pin No. Symbol Function
1ST Status output ; low level for open load
2 GND
Ground ; internally connected to pin 5
3I Input voltage
4Q Output
5 GND
Data Sheet Rev. 0.2 2 2000-08-10
Ground
TLE 4240 G
TLE 4240 G
34
I
Control
Amplifier
Buffer
Q
Tempe-
rature
Sensor
Figure 2 Block Diagram
>
66 mA
Current
Limit
Control
<
1 mA
2, 5
GND
1
ST
AEB03001
Data Sheet Rev. 0.2 3 2000-08-10
TLE 4240 G
Absolute Maximum Ratings
T
– 40 °C <
Parameter Symbol Limit Values Unit Remarks
Input
< 150 °C
j
min. max.
Voltage
Current
Output
Voltage
Current
Status
Voltage
Current
Temperatures
Junction temperature
Storage temperature
V
I
V
I
V
I
T
T
I
Q
ST
I
Q
ST
j
stg
–42 45 V –
– – mA internally limited
– 1 40 V –
– – mA internally limited
– 0.3 40 V –
– 5 5 mA internally limited
– 40 150
C–
°
– 50 150 °C–
Thermal Resistances
Junction ambient
R
thja
– 179 K/W zero heat sink area,
zero airflow
Note: Maximum ratings are abs olute ratings; exceeding any one of these values may
cause irreversible damage to the integrated circuit.
Data Sheet Rev. 0.2 4 2000-08-10
TLE 4240 G
Operating Range
Parameter Symbol Limit Values Unit Remarks
min. max.
Input voltage
Status output voltage
Junction temperature
V
V
T
I
ST
j
345V–
–7V–
– 40 150
C–
°
Electrical Characteristics
V
= 13.5 V; – 40°C<Tj<150°C; unless otherwise specified
I
Parameter Symbol Limit Values Unit Test Condition
min. typ. max.
Output
Drop voltage
Output current
Current consumption
I
= II – I
q
Q
V
I
I
dr
Q
q
–0.50.7VIQ = 60 mA
53 66 79 mA 9 V < VI < 16 V
T
<125°C
j
–710mAIQ = 60 mA
T
=25°C
j
Status Output
Status Output Voltage
V
ST
––0.8VIQ = 1mA
R
= 10 kΩ
ext
Data Sheet Rev. 0.2 5 2000-08-10
TLE 4240 G
Current Consumption Iq versus
I
Output Current
7
mA
Ι
Q
6
5
4
3
2
1
0
10
0
Q
20 30 40 50 60
AED02908
mA
Ι
Q
Output Current
Input Voltage
120
mA
Ι
Q
100
80
60
40
20
0
0
V
10 20 30 40 50
I
versus
Q
I
T
j
= 125 ˚C
T
j
AED02745
= 25 ˚C
V
V
I
Data Sheet Rev. 0.2 6 2000-08-10
TLE 4240 G
Package Outlines
SCT-595
(Special Package)
±0.2
1)
+0.1
-0.05
2.9
(2.2)
(0.3)
0.3
0.95
+0.2
acc. to
DIN 6784
+0.1
-0.05
0.25 min
2.6 max
0.20
1.1 max
10˚max
M
A
0.1 max
+0.1
0.15
-0.06
±0.1
1.6
10˚max
A
B
1.2
(0.4)
1)
(0.13)
+0.1
-0.05
(0.23)
0.6
1.9
0.25MB
1)
Contour of slot depends on profile
of gull-wing lead form
Sorts of Packing
Package outlines for tubes, trays etc. are contained in our
Data Book “Package Information”.
SMD = Surface Mounted Device
Data Sheet Rev. 0.2 7 2000-08-10
Dimensions in mm
TLE 4240 G
Edition 2000-08-10
Published by Infineon Technologies AG,
St.-Martin-Strasse 53,
D-81541 München, Germany
©
Infineon Technologies AG 8/18/00.
All Rights Reserved.
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certain components and shall not be considered as warranted characteristics.
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change reserved.
We hereby disclaim any and all warranties,
including but not limited to warranties of
non-infringement, regarding circuits, descriptions and charts stated herein.
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manufacturer.
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For further information on technology, delivery terms and conditions and prices please
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Office in Germany or our Infineon Technologies Representatives worldwide (see address list).
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Due to technical requirements components
may contain dangerous substances. For information on the types in question please
contact your nearest Infineon Technologies
Office.
Infineon Technologies Components may only
be used in life-support devices or systems
with the express written approval of Infineon
T echnologies , if a failure of such components
can reasonably be expected to cause the f ailure of that life-support device or system, or to
affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and
sustain and/or protect human life. If they fail,
it is reasonable to assume that the health of
the user or other persons may be endangered.
Data Sheet Rev. 0.2 8 2000-08-10
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