Linear LED driver ICs
Cypress Semiconductor has become part of Infineon Technologies: Its product range is a perfect match. Infineon now offers the industry’s most comprehensive portfolio for linking the real with the digital world – comprising an unparalleled range of hardware, software and security solutions for the connected age.
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Optimally drive low and mid power LEDs
Cost savings is the primary reason why numerous companies still consider using resistors to drive low-power LEDs. However, this decision can backfire since resistors cannot prevent LEDs from overheating. When LEDs heat up, they draw even more current, making them heat up even further. Many designs using resistors would benefit from a different solution. Using BCR linear LED drivers to drive LED currents between 10 mA and 250 mA will prevent thermal runaway.
Infineon’s solutions for linear LED driver IC
The high granularity of Infineon’s BCR portfolio lets you select the best-fit product in terms of price and performance. For common nominal output currents like 10 / 20 / 50 mA, you can use the LED driver IC without current setting resistors and other output currents can be adjusted via an external resistor. The negative thermal coefficient protects the LED load from overheating. PWM dimming is possible with a microcontroller BCR321U and BCR421U due to logic level input.
Simulations with Infineon Designer
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Driving low-power LEDs (5-65 mA)
Driving medium-power LEDs (65-150 mA)
|Application note||Evaluation board|
|Light Strip using BCR320U using half watt LEDs (AN212)||BCR320U HW LED BOARD|
Dimming low and medium power LEDs (10-150mA)
Driving medium to high-power LEDs (65-500mA)
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Let there be LED