Dual channel DC-DC LED headlamp driver eliminates microcontroller
Infineon Technologies has launched a dual-channel, stand-alone DC-DC controller for LED lighting that for the first time eliminates the need for a microcontroller.
The TLD6098-2ES is part of Infineon’s LITIX family and operates the four standard LED front light functions: High Beam (HB), Low Beam (LB), Daytime Running Lights (DRL) and Turn Signal (TURN). In addition, LITIX Power products can be used as a voltage supply to meet the growing demand for animation in exterior LED lighting.
Eliminating a microcontroller reduces supply chain issues and the bill of materials while increasing reliability.
The multi-topology controller enables boost, buck, SEPIC and flyback topologies. The integrated PMOS gate drivers provide high-side load disconnection to dim the LED brightness and to ensure adequate system reliability, driving a low-side external n-channel switching MOSFET from an internal 5V voltage regulator.
An integrated spread spectrum modulator improves the EMC performance to ease the system qualification at the customer site with a flexible switching frequency range from 100 kHz to 500 kHz. There is also a 2.2MHz version that can reduce the size of the magnetics. Each channel of TLD6098-2ES offers both analog and PWM dimming for precise LED brightness control. With the wide input voltage range of 4.5 V to 60 V, even 24 V battery system applications can be supported.
The products of the LITIX Power family can be ordered now.
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