JAJSMA3A December 2021 – September 2024 LP5866
PRODUCTION DATA
LP5866 requires an external capacitor CVCAP, whose value is 1μF 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 1μF capacitors be placed between VCC / VLED with GND, and a 1nF 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 1.8kΩ to 4.7kΩ 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.