INFINEON TLE 4240 G User Manual
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
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