SNVU786 May   2021 LP5860

 

  1.   Read This First
    1.     About This Manual
    2.     Notational Conventions
    3. 1.1 Glossary
    4.     Related Documentation
    5. 1.1 Support Resources
    6.     Trademarks
  2. 1Introduction/Feature Overview
    1. 1.1 Overview
    2. 1.2 Description
  3. 2 Register Maps
    1. 2.1  Register Map Table
    2. 2.2  CONFIG Registers
    3. 2.3  GROUP Registers
    4. 2.4  LED_DOT_GROUP Registers
    5. 2.5  LED_DOT_ONOFF Registers
    6. 2.6  FAULT_STATE Registers
    7. 2.7  LOD Registers
    8. 2.8  LSD Registers
    9. 2.9  LOD_CLR Registers
    10. 2.10 LSD_CLR Registers
    11. 2.11 RESET Registers
    12. 2.12 DC Registers
    13. 2.13 PWM Registers
  4. 3Revision History

1.2 Description

The LP5860 supports both analog dimming and PWM dimming methods. For analog dimming, the current gain of each individual LED dot can be adjusted with 256 steps through 8-bits dot correction. For PWM dimming, the integrated 8-bits or 16-bits configurable, > 20-KHz PWM generators for each LED dot enable smooth, vivid animation effects without audible noise. Each LED can also be mapped into a 8-bits group PWM to achieve the group control with minimum data traffic.

The LP5860 device implements full addressable SRAM. It supports entire SRAM data refresh and partial SRAM data update on demand to minimize the data traffic. The LP5860 implements the ghost cancellation circuit to eliminate both upside and downside ghosting. The LP5860 also utilizes low brightness compensation technology to support high density LED pixels. Both 1-MHz (max.) I2C and 12-MHz (max.) SPI interfaces are available in the LP5860.

Figure 1-1 Device Block Diagram