SLVSH05 November 2023 LP8865U-Q1 , LP8865V-Q1 , LP8865W-Q1 , LP8865X-Q1 , LP8865Y-Q1 , LP8865Z-Q1
PRODUCTION DATA
The output current of the LED is controlled with external resistor Rsense between CSP and CSN pins. Rsense value for the target current can be calculated using equation Equation 1. Noted that, to relised IFD function and improve the accuracy of the output current in low duty cycle, the capacitor in parallel with sense resistor is required for boost and buck-boost topology. And it is optional for buck topology.
where
For example, if Rsense is set to 100 mΩ. ILED will be 2 A.