SCT 595
Low-Drop LED Driver
Target Data
TLE 4240 G
Data Sheet Rev. 0.2 1 2000-08-10
Features
• Output current tolerance ≤ ± 20%
• 60 mA output current
• Low drop voltage
• Suitable for use in automotive electronics
• Wide operation range: up to 45 V
• Wide temperature range: – 40 °C≤Tj ≤150 °C
• Output protected against short circuit
• Overtemperature protection
• Reverse polarity proof
• Very small SMD-Package SCT 595
• Status output for open Load
▼ New type
Functional Description
The TLE 4240 G is a monolithic i ntegrated low -drop LED Driver in t he 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%.
Type Ordering Code Package
▼TLE 4240 G SCT-595 (SMD)
TLE 4240 G
Data Sheet Rev. 0.2 2 2000-08-10
Pin Configuration
(top view)
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
Ground
AEP02906
2
3
1
4
5
ST
GND
Ι
GND
Q
TLE 4240 G
Data Sheet Rev. 0.2 3 2000-08-10
Figure 2 Block Diagram
AEB03001
TLE 4240 G
Q
GND
Current
Limit
Control
Tempe-
rature
Sensor
ST
I34
1
2, 5
66 mA
>1 mA
<
Control
Amplifier Buffer
TLE 4240 G
Data Sheet Rev. 0.2 4 2000-08-10
Note: Maximum ratings are absolute ratings; exceeding any one of these values may
cause irreversible damage to the integrated circuit.
Absolute Maximum Ratings
– 40 °C < Tj < 150 °C
Parameter Symbol Limit Values Unit Remarks
min. max.
Input
Voltage VI–42 45 V –
Current II– – mA internal ly lim ited
Output
Voltage VQ– 1 40 V –
Current IQ– – mA internal ly lim ited
Status
Voltage VST – 0.3 40 V –
Current IST – 5 5 mA internally limited
Temperatures
Junction temperature Tj– 40 150 °C–
Storage temperature Tstg – 50 150 °C–
Thermal Resistances
Junction ambient Rthja – 179 K/W zero heat sink area,
zero airflow
TLE 4240 G
Data Sheet Rev. 0.2 5 2000-08-10
Operating Range
Parameter Symbol Limit Values Unit Remarks
min. max.
Input voltage VI345V–
Status output voltage VST –7V–
Junction temperature Tj– 40 150 °C–
Electrical Characteristics
VI= 13.5 V; – 40 °C<Tj<150°C; unless otherwise specified
Parameter Symbol Limit Values Unit Test Condition
min. typ. max.
Output
Dr op vol tage Vdr –0.50.7VIQ = 60 mA
Output current IQ53 66 79 mA 9 V < VI < 16 V
Tj<125°C
Current consumption
Iq = II – IQ
Iq–710mAIQ = 60 mA
Tj=25°C
Status Output
Status Output Voltage VST ––0.8VIQ = 1mA
Rext = 10 kΩ
TLE 4240 G
Data Sheet Rev. 0.2 6 2000-08-10
Current Consumption Iq versus
Output Current IQ Output Current IQ versus
Input Voltage VI
00
AED02908
Ι
Q
mA
Q
Ι
mA
10 20 30 40 50 60
1
2
3
4
5
6
7
00
AED02745
Ι
Q
40
80
mA
120
20
60
100
I
V
10 20 30 40 50
= 25 ˚C
= 125 ˚C
V
j
T
j
T
TLE 4240 G
Data Sheet Rev. 0.2 7 2000-08-10
Package Outlines
acc. to
+0.2
1.9
0.6
-0.05
+0.1
+0.1
-0.05
0.3
B
A
0.25
M
B
1.1 max
2.6 max
10˚max
0.1 max
A
M
0.20
2.9
±0.2
1.6±0.1
DIN 6784
(2.2)
(0.3)
1.2
-0.05
+0.1
0.95
-0.06
+0.1
0.15
10˚max
0.25 min
(0.4)
1)
(0.23)1)
(0.13)
1)
Contour of slot depends on profile
of gull-wing lead form
SCT-595
(Special Package)
Sorts of Packing
Package outlines for tubes, trays etc. are contained in our
Data Book “Package Information”. Dimensions in mm
SMD = Surface Mounted Device
TLE 4240 G
Data Sheet Rev. 0.2 8 2000-08-10
Edition 2000-08-10
Published by Infineon Technologies AG,
St.-Martin-Strasse 53,
D-81541 München, Germany
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Infineon Technologies AG 8/18/00.
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