ZHCSCK8G May 2014 – October 2017 LP8860-Q1
PRODUCTION DATA.
The LP8860-Q1 has an internal 10-MHz oscillator which is used for clocking the PWM input duty cycle measurement. The 10-MHz clock is divided by two, and the 5-MHz clock is used for clocking the state machine and internal timings.
The internal 5-MHz clock can be used for generating the LED PWM output frequency directly or it can be multiplied with an internal PLL to achieve higher resolution. The higher clock frequency for the PWM generation block allows the higher resolution; however, the tradeoff is higher power consumption of the part. Clock multiplication is set with <PWM_RESOLUTION[1:0]> EEPROM bits.