Devices enable NFC programming of LED lighting

Infineon’s NLM0011 and NLM0010 enable contactless programming of the driver current for LED lights. Both of these NFC wireless communication devices provide a configurable PWM output to control the analog driver IC, replacing the plug-in resistor method of setting driver current.

The NLM0011 and NLM0010 operate in passive and active modes. In passive mode, the LED driver module is not powered, and the PWM-related parameters can be configured wirelessly via the NFC interface. In active mode, as soon as the VCC voltage supply is powered, a PWM output is generated according to stored parameters. With an external R/C filter, the PWM signal is converted to the desired DC voltage to control the current output of an LED driver.

(Source: Infineon)

The NLM0011 offers a constant lumen output (CLO) with eight configurable reference points. CLO compensates for the luminous flux drop (aging effect) of the LED module by automatically adjusting the LED current to the aging characteristics of the LEDs. There is no need for an additional microcontroller, and the part works with mainstream analog driver ICs. The NLM0010 is a light version without the CLO function.

The NLM0011 and NLM0010 dual-mode NFC configuration ICs come in SOT23-5 packages and operate from a supply voltage of 3.0 V to 5.5 V.

>> An earlier version of article was originally published on our sister site, EDN.


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