TLE4240-2M Datasheet, PDF (1/11 Pages) Infineon Technologies AG – Low Dropout Linear LED Driver

Low Dropout Linear LED Driver
TLE 4240-2/3 M
Features
• Typ. 58 mA constant output current
• Low dropout voltage
• Tiny SMD package PG-SCT595-5
• Open load detection (Version TLE 4240-3 M only)
• 45 V input voltage operation range
• Safe operation area monitoring
• Output protected against short circuit
to GND and supply
• Reverse polarity protection
• Wide temperature range: -40 °C ≤ T_j ≤ 150 °C
• Overtemperature shutdown
• Suitable for use in automotive electronics
PG-SCT-595
Functional Description
The TLE 4240-2/3 M is a monolithic integrated low dropout linear constant current
source. It is designed to supply white or color LEDs in order to achive constant
brightness and extended LED lifetime independent from supply voltage or LED forward
voltage class.
Protection circuits prevent from damage to the device in case of overload, short circuit,
reverse polarity and overheat. The LEDs connected are protected against reverse
polarity transients as well as against voltages up to 45 V. The Safe Operation Area
(SOA) monitoring function limits the output current in case of a very high drop voltage
across the regulator. For details see graph “Output Current versus Drop Voltage”.
Version TLE 4240-3 M is equipped with a status output indicating an open load failure
condition.
The TLE 4240-2/3 M is supplied in a space-saving PG-SCT595-5 package offering
minimal thermal resistance.
Type
TLE 4240-2 M
TLE 4240-3 M
Datasheet
Package
PG-SCT595-5
PG-SCT595-5
Remark
–
Open load detection
Marking
42
43
1
Rev. 1.1, 2006-12-07