SNVSBD2B August 2020 – May 2024 LP8864-Q1
PRODUCTION DATA
This typical LED-driver application is designed to meet the parameters listed in Table 7-5:
DESIGN PARAMETER | VALUE |
---|---|
VIN voltage range | 4.5V to 20V (quiescent voltage) |
VDD voltage | 3.3V |
LED strings configuration | 3 strings, 3 LEDs in series |
Charge pump | Enabled |
Brightness control | I2C |
Output configuration | OUT1 to OUT3 are in phase shift PWM mode |
LED string current | 80mA |
Boost frequency | 2.2MHz |
Inductor | 10µH at 4A saturation current |
RISENSE | 20mΩ |
Power-line FET | Enabled |
RSENSE | 50mΩ |
Input/Output capacitors | CIN and COUT: 1 × 33µF electrolytic + 1 × 10µF ceramic |
Spread spectrum | Enabled |
Discharge function | Enabled |