LP5860RKPR 40VQFN Integrated Circuit Chip LED Driver IC 18 Output 50mA

Applications of LP5860RKPR

• LED animation and indication for:
– Keyboard, mouse, and gaming accessories
– Major and smart home appliances
– Smart speaker, wired and wireless speaker
– Audio mixer, DJ equipment, and broadcast
– Access equipment, switches, and servers
• Constant current sinks for optical module

Overview of LP5860RKPR

The LP5860 is an 11 × 18 LED matrix driver. The device integrates 11 switching FETs with 18 constant current
sinks. One LP5860 device can drive up to 198 LED dots or 66 RGB pixels by using time-multiplexing matrix
scheme.
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. The device 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 uses low brightness
compensation technology to support high density LED pixels. Both 1-MHz (maximum) I2C and 12-MHz
(maximum) SPI interfaces are available in the LP5860.