The TPS92210EVM-647 is a fully assembled and tested circuit for evaluating the TPS92210 natural PFC LED lighting driver controller. The controller uses cascode configuration which allows for faster start up times as well as eliminates the need for an external sense resistor for primary side current sense. Additionally, the controller employs a maximum on-time modulation scheme that allows it to be used in a power factor correction circuit. This results in a compact LED driver design that achieves greater than 0.99 power factor driven by a single controller. The evaluation module is also compatible with a wide variety of TRIAC dimmers. Secondary side feedback responds to the conduction time of the sinusoidal wave, as governed by the TRIAC, and appropriately lowers the LED current to dim the LEDs. The secondary side also includes an adaptive supplemental load that sinks current when LED current becomes too low, therefore ensuring conduction of the TRIAC during very low dimming.
● Single stage power factor correction achieves PF greater than 0.95
● TRIAC dimming to zero LED current
● Test points for output voltage/current
● Cascoded configuration for fully integrated current control with no external sense resistor
● Flexible operation modes
● Cascoded MOSFET configuration
● Discontinuous conduction mode or transition mode operation
● Transformer zero energy detection
● Open LED detection
● Line surge ruggedness
●High voltages exist on this EVM. Please handle with care. Do not touch EVM when powered.
