TLE 4241 GM is an integrated adjustable constant current source for supplying LEDs in automotive applications, with adjustable output current and multiple protection features.
The TLE4241 GM is an integrated adjustable constant‑current LED driver designed for automotive and other demanding applications. It offers adjustable output current via SET, PWM, or a reference resistor, with built‑in protections such as over‑temperature, short‑circuit, reverse polarity, and open‑load detection.
The document includes a block diagram, pin configuration, absolute maximum ratings, operating ranges, and detailed electrical characteristics. An example application circuit shows how three LEDs can be driven with stable brightness, and the PWM input allows brightness control through duty‑cycle modulation.
| Input voltage range | 4 V – 45 V |
|---|---|
| Output current (SET=L, Vg=6 V) | 6.7 mA – 8.4 mA |
| Output current (SET=H, Vg=6 V) | 47 mA – 70 mA |
| Drop voltage (SET=L) | 0.2 V – 0.5 V |
| Maximum junction temperature | -40 °C – 150 °C |
The device operates with an input voltage between 4 V and 45 V.
Brightness can be adjusted via a PWM input or by changing the reference resistor that sets the output current.