ZHCSOA5 December 2021 LP5866
PRODUCTION DATA
LP5866 requires an external capacitor CVCAP, whose value is 1 μF connected from VCAP to GND for proper operation of internal LDO. The capacitor must be placed as close to the device as possible.
TI recommends 1-μF capacitors be placed between VCC / VLED with GND, and a 1-nF capacitor placed between VIO with GND. Place the capacitors as close to the device as possible.
Pull-up resistors Rpull-up are a requirement for SCL and SDA when using I2C as communication method. In typical applications, TI recommends 1.8-kΩ to 4.7-kΩ resistors.
To decrease thermal dissipation from device to ambient, resistors RCS can optionally be placed in serial with the LED. Voltage drop on these resistors must left enough margins for VSAT to ensure the device works normally.