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3
SNVU382A–April 2014–Revised June 2014
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List of Figures
List of Figures
2-1. Typical Application, Simple PWM Control, VDD = 3.3 V, Charge Pump On, 4 Strings ............................ 8
2-2. Typical Application, SPI Control, VDD = 5 V, Charge Pump Off, 2 Strings.......................................... 9
2-3. Typical Application, I2C Control, VDD = 3.3 V, Charge Pump On, 4 Strings....................................... 10
2-4. Typical Application, without Serial Interface, VDD = 5 V, Charge Pump Off, 3 Strings........................... 11
3-1. Evaluation Board Connectors and Setup ............................................................................... 12
4-1. Top Layer ................................................................................................................... 13
4-2. Bottom Layer (GND)....................................................................................................... 13
4-3. PCB Layout Example...................................................................................................... 14
5-1. Evaluation Board Stackup................................................................................................. 15
7-1. Evaluation Board Schematic, Microcontroller and Related Components........................................... 17
7-2. Evaluation Board Schematic, LP8860-Q1 and Main Components .................................................. 18
9-1. Main Window Structure.................................................................................................... 22
9-2. Main Window and Pin Control Tab....................................................................................... 23
9-3. Brightness Control Tab.................................................................................................... 24
9-4. Fault and Status Tab....................................................................................................... 25
9-5. Boost Controls Tab......................................................................................................... 26
9-6. Interactive Boost Diagram Window ...................................................................................... 26
9-7. Fault and Adaptive Voltage Control Tab ................................................................................ 27
9-8. LED Fault And Adaptive Voltage Control Functionality Diagram .................................................... 27
9-9. LED Driver Controls........................................................................................................ 28
9-10. LED Driver Diagram Window ............................................................................................. 28
9-11. PLL Diagram Window...................................................................................................... 29
9-12. PLL Calculator for External VSYNC (Steps Show Order for Applying Commands)............................... 29
9-13. PLL Calculator for Internal Oscillator .................................................................................... 30
9-14. Temperature Sensors Control ............................................................................................ 31
9-15. EEPROM Map.............................................................................................................. 32
9-16. History Tab.................................................................................................................. 33
A-1. Device Manager View. Select the Virtual COM Port .................................................................. 34
A-2. Open Properties by Clicking Right Mouse Button on Virtual COM Port ............................................ 35
A-3. Select Port Settings from the Virtual COM Port Properties........................................................... 35
A-4. Select Advanced from Virtual COM Port Properties and Select COM Port Number (9 or smaller) ............. 36
C-1. LED Load Board - Top Side .............................................................................................. 38
C-2. LED Load Board - Bottom View.......................................................................................... 38
C-3. LED Load Board - Schematic Diagram.................................................................................. 39
C-4. Forward Voltage for Cree Xlamp ML-B LEDs ......................................................................... 40
D-1. Jumper Positions........................................................................................................... 43
D-2. CPUMP Jumper ............................................................................................................ 44
D-3. Interface Jumpers .......................................................................................................... 58
