LP5866T Series

6 x 18 high-current LED matrix driver with 8-bit analog and 8-/16-bit PWM dimming

Catalog

6 x 18 high-current LED matrix driver with 8-bit analog and 8-/16-bit PWM dimming

Part	Applications	Internal Switch(s)	Mounting Type	Current - Output / Channel	Operating Temperature [Max]	Operating Temperature [Min]	Number of Outputs	Voltage - Output [Max]	Voltage - Output [Min]	Voltage - Supply (Max)	Type	Package / Case	Frequency	Dimming	Topology	Supplier Device Package	Voltage - Supply (Min) [Min]
Texas Instruments LP5866TMRKPR	Backlight Camera Flash		Surface Mount	100 mA	125 °C	-55 °C	18	5.5 V	2.5 V	5.5 V	Linear	40-VFQFN Exposed Pad	31.2 MHz	Analog I2C PWM SPI	Constant Current	40-VQFN (5x5)	2.5 V

Catalog

6 x 18 high-current LED matrix driver with 8-bit analog and 8-/16-bit PWM dimming

Key Features

• LED matrix topology:18 constant current sinks with 6 scan switches for 108 LED dotsConfigurable for 1 to 6 scan switchesOperating voltage range:VCC/VLED range: 2.7V to 5.5VLogic pins compatible with 1.8V, 3.3V, and 5V18 constant current sinks with high precision:100mA per current sink when VCC ≥ 3.3VDevice-to-device error: ±5%Channel-to-channel error: ±5%Phase-shift for balanced transient powerUltra-low power consumption:Shutdown mode: ICC ≤ 1µA when EN = LowStandby mode: ICC ≤ 10µA when EN = High and CHIP_EN = 0 (data retained)Active mode: ICC = 5mA (typ.) when channel current = 12.5mAFlexible dimming options:Individual ON/OFF control for each LED dotAnalog dimming (current gain control)Global 7-step Maximum Current (MC) setting for all LED dots3 groups of 7-bit Color Current (CC) RGB settingIndividual 8-bit Dot Current (DC) setting for each LED dotPWM dimming with audible-noise-free frequencyGlobal 8-bit PWM dimming for all LED dots3 programmable groups of 8-bit PWM dimming for LED dot arbitrary mappingIndividual 8-bit or 16-bit PWM dimming for each LED dotFull addressable SRAM to minimize data trafficIndividual LED dot open/short detectionDe-ghosting and low brightness compensationInterface options:1MHz (max.) I2C interface when IFS = Low12MHz (max.) SPI interface when IFS = HighLED matrix topology:18 constant current sinks with 6 scan switches for 108 LED dotsConfigurable for 1 to 6 scan switchesOperating voltage range:VCC/VLED range: 2.7V to 5.5VLogic pins compatible with 1.8V, 3.3V, and 5V18 constant current sinks with high precision:100mA per current sink when VCC ≥ 3.3VDevice-to-device error: ±5%Channel-to-channel error: ±5%Phase-shift for balanced transient powerUltra-low power consumption:Shutdown mode: ICC ≤ 1µA when EN = LowStandby mode: ICC ≤ 10µA when EN = High and CHIP_EN = 0 (data retained)Active mode: ICC = 5mA (typ.) when channel current = 12.5mAFlexible dimming options:Individual ON/OFF control for each LED dotAnalog dimming (current gain control)Global 7-step Maximum Current (MC) setting for all LED dots3 groups of 7-bit Color Current (CC) RGB settingIndividual 8-bit Dot Current (DC) setting for each LED dotPWM dimming with audible-noise-free frequencyGlobal 8-bit PWM dimming for all LED dots3 programmable groups of 8-bit PWM dimming for LED dot arbitrary mappingIndividual 8-bit or 16-bit PWM dimming for each LED dotFull addressable SRAM to minimize data trafficIndividual LED dot open/short detectionDe-ghosting and low brightness compensationInterface options:1MHz (max.) I2C interface when IFS = Low12MHz (max.) SPI interface when IFS = High

Description

The LP5866T is a high-current and high-performance LED matrix driver. The device integrates 18 constant current sinks with N (N = 6/8/11) switching MOSFETs to support . The LP5866T integrates 6 MOSFETs for up to 108 LED dots or 36 RGB LEDs. The LP5866T supports both analog dimming and PWM dimming methods. For analog dimming, each LED dot can be adjusted with 256 steps. For PWM dimming, the integrated 8-bit or 16-bit configurable PWM generators enable smooth and audible-noise-free dimming control. Each LED dot can also be arbitrarily mapped into 8-bit Group PWM to achieve dimming control together. The LP5866T device implements full addressable SRAM to minimize the data traffic. The ghost-cancellation circuitry is integrated to eliminate both upside and downside ghosting. The LP5866T also supports LED open and short detection functions. Both 1MHz (maximum) I2C and 12MHz (maximum) SPI are available in LP5866T. The LP5866T is a high-current and high-performance LED matrix driver. The device integrates 18 constant current sinks with N (N = 6/8/11) switching MOSFETs to support . The LP5866T integrates 6 MOSFETs for up to 108 LED dots or 36 RGB LEDs. The LP5866T supports both analog dimming and PWM dimming methods. For analog dimming, each LED dot can be adjusted with 256 steps. For PWM dimming, the integrated 8-bit or 16-bit configurable PWM generators enable smooth and audible-noise-free dimming control. Each LED dot can also be arbitrarily mapped into 8-bit Group PWM to achieve dimming control together. The LP5866T device implements full addressable SRAM to minimize the data traffic. The ghost-cancellation circuitry is integrated to eliminate both upside and downside ghosting. The LP5866T also supports LED open and short detection functions. Both 1MHz (maximum) I2C and 12MHz (maximum) SPI are available in LP5866T.