TI: full introduction of high power LED drivers

Texas Instruments (TI) Announced the launch of a high-power multi-topology DC/DCLED driver with adjustable switching frequency and current induction threshold, high design flexibility and low electromagnetic interference (EMI) Suitable for automotive headlights, fog lamps and general general lighting applications. The TPS92690 is an N-channel MOSFET controller that supports low-side current sensing and supports boost or buck-boost LED driver topologies such as SEPIC, Cuk, back-to-back topologies, etc. TPS92690DC/DCLED controller has rich features, which can greatly improve the system design flexibility for designers. For example, the adjustable switching frequency can be as high as 2 MHz, and the current sensing threshold can help designers to optimize LED drivers and implement small, high-efficiency or both electronic products. Independent pulse width modulation (PWM) And analog input is combined with universal dimming control method to adjust LED current or provide overheat protection (thermalfoldback). The internal oscillator can set the switching frequency of the converter or be overdriven by an external clock (overdriven) , The switching frequency is synchronized with other converters in the design. Low-side current induction can realize low EMI topology such as Cuk converter while maintaining a single line connection of LED load. TPS92690 belongs to TI's rich series of LED drivers, including LM3466, LM3409 and LM3421/3/4DC/DCLED drivers. The main features and advantages of TPS92690 include compliance with AEC-Q100 automotive or commercial application standards; 4. 5V to 75. The 0V input voltage range is suitable for boost, SEPIC, Cuk and anti-galloping topologies in various LED applications; Low side adjustable current induction (50mV to 500mV) Can greatly reduce power loss and support analog dimming control; Undervoltage lockout (UVLO) , LED overvoltage, current limit per cycle and overheat shutdown protection can prevent faults and abnormal operation. TPS92690 in 16-pin PowerPadTSSOP package is now available in mass production and can be ordered through TI and its authorized channels.