Note: Pinouts may vary slightly by manufacturer revision. Always verify the physical datasheet.
| Pin Number | Pin Name | Description | | :--- | :--- | :--- | | 1 | VCC | Power supply input for the internal control logic. | | 2 | FB | Feedback loop input for output current regulation. | | 3 | COMP | Compensation pin for loop stability (error amplifier output). | | 4 | CS | Current Sense input for peak current limiting. | | 5 | GND | Ground. | | 6 | OUT | Gate driver output to drive the external MOSFET. | | 7 | NC | No Connect (reserved for spacing or future use). | | 8 | HV | High Voltage startup pin (connected to rectified line voltage). | lzc8650c ic datasheet pdf
The LZC8650C is typically categorized as a High-Precision LED Constant Current Driver IC. It is designed to operate in Buck, Buck-Boost, or other tapped-inductor topologies. Note: Pinouts may vary slightly by manufacturer revision
Unlike a simple linear regulator, the LZC8650C utilizes a high-frequency switching architecture. Its primary objective is to drive LED strings with a constant current regardless of input voltage fluctuations or changes in the LED string's forward voltage due to temperature. This ensures consistent luminosity and extends the lifespan of the LED emitters. | | 2 | FB | Feedback loop
This is the core of any LZC8650C IC datasheet PDF. You will find: