| Key | Value |
|---|---|
| Interface Type: | PWM + I2C |
| Number of Strings: | 16 |
| Max Current per String: | 30mA |
| LEDs per String: | 10 |
| Max String Match: | 3.0% |
| String Current Global: | R |
| String PWM Global: | PWM |
| String Phasing: | Auto |
| External VSYNC: | PWM |
| DC/DC EO: | 1 |
The MSL3168 compact, high-power, 16 parallel string LED driver feature internal current control MOSFETs that can sink up to 30mA per LED string with better than 3% accuracy. These devices drive up to 10 white LEDs per string, for up to 160 LEDs per MSL3168. A single PWM input controls the PWM period and duty cycle for all strings. The MSL3168 include automatic fault management of string open circuit, short circuit and over-temperature conditions. Faults are alerted on the FLTB pin, and fault status is optionally available through the I2C/SMBus-compatible serial interface. The MSL3168 adaptively control the DC-DC converter that powers the LED strings using mSilica's Adaptive SourcePower™ technology. This Efficiency Optimizer minimizes power use while maintaining LED current accuracy. A single, external resistor provides the global reference current for all the LED strings. The MSL3168 calculates and applies a 1/16th PWM period delay to successive strings to evenly spread the string power supply load across time.
