LP5861 Series
18-channel RGB LED driver with 8-bit analog and 8-/16-bit PWM dimming
Manufacturer: Texas Instruments
Catalog(2 parts)
| Part | Voltage - Supply (Max)▲▼ | Internal Switch(s)▲▼ | Number of Outputs▲▼ | Package / Case | Grade | Voltage - Output▲▼ | Voltage - Output▲▼ | Dimming | Current - Output / Channel▲▼ | Voltage - Supply (Min)▲▼ | Topology | Type | Supplier Device Package | Qualification | Mounting Type | Operating Temperature▲▼ | Operating Temperature▲▼ | Utilized IC / Part | Outputs and Type | Outputs and Type▲▼ | Voltage - Input▲▼ | Voltage - Input▲▼ | Features | Supplied Contents |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments LP5891QRRFRQ1LED Driver IC 16 Output Linear Constant Current PWM Dimming 20mA 76-VQFN (9x9) | 5.5 V | 16 ul | 76-VFQFN Exposed Pad | Automotive | 2.5 V | 5.5 V | PWM | 0.019999999552965164 A | 2.5 V | Constant Current | Linear | 76-VQFN (9x9) | AEC-Q100 | Surface Mount | -40 °C | 125 °C | ||||||||
LP5861T | Non-Isolated | 18 ul | 2.700000047683716 V | 5.5 V | Dimmable | Board(s), Cable(s) |
Key Features
• Operating voltage range:VCC/VLEDrange: 2.7 V to 5.5 VLogic pins compatible with 1.8 V, 3.3 V, and 5 V18 constant current sinks with high precision:0.1 mA–50 mA per current sink when VCC≥ 3.3 VDevice-to-device error: ±5%Channel-to-channel error: ±5%Phase-shift for balanced transient powerUltra-low power consumption:Shutdown mode: ICC≤ 2 uA when EN = LowStandby mode: ICC≤ 10 uA when EN = High and CHIP_EN = 0 (data retained)Active mode: ICC= 3 mA (typ.) when channel current = 5 mAFlexible dimming options:Individual ON and OFF control for each LED dotAnalog dimming (current gain control)Global 3-bit Maximum Current (MC) setting for all LED dots3 groups of 7-bit Color Current (CC) setting for red, green, and blueIndividual 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 and short detectionDeghosting and low brightness compensationInterface options:1-MHz (max.) I2C interface when IFS = Low12-MHz (max.) SPI interface when IFS = HighOperating voltage range:VCC/VLEDrange: 2.7 V to 5.5 VLogic pins compatible with 1.8 V, 3.3 V, and 5 V18 constant current sinks with high precision:0.1 mA–50 mA per current sink when VCC≥ 3.3 VDevice-to-device error: ±5%Channel-to-channel error: ±5%Phase-shift for balanced transient powerUltra-low power consumption:Shutdown mode: ICC≤ 2 uA when EN = LowStandby mode: ICC≤ 10 uA when EN = High and CHIP_EN = 0 (data retained)Active mode: ICC= 3 mA (typ.) when channel current = 5 mAFlexible dimming options:Individual ON and OFF control for each LED dotAnalog dimming (current gain control)Global 3-bit Maximum Current (MC) setting for all LED dots3 groups of 7-bit Color Current (CC) setting for red, green, and blueIndividual 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 and short detectionDeghosting and low brightness compensationInterface options:1-MHz (max.) I2C interface when IFS = Low12-MHz (max.) SPI interface when IFS = High
Description
AI
Electronic devices are becoming smarter, requiring to use larger quantity of LEDs for animation and indication purposes and high performance LED matrix driver is required to improve user experience with small solution size.
The LP586x devices are a family of high performance LED matrix drivers. The device integrates 18 constant current sinks with N (N = 1/2/4/6/8/11) switching MOSFETs to support N × 18 LED dots or N × 6 RGB LEDs. The LP5861 integrates 1 MOSFET for up to 18 LED dots or 6 RGB LEDs.
The LP5861 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 LP5861 device implements full addressable SRAM to minimize the data traffic. The ghost-cancellation circuitry is integrated to eliminate both upside and downside ghosting. The LP5861 also supports LED open and short detection functions. Both 1-MHz (maximum) I2C and 12-MHz (maximum) SPI are available in LP5861.
Electronic devices are becoming smarter, requiring to use larger quantity of LEDs for animation and indication purposes and high performance LED matrix driver is required to improve user experience with small solution size.
The LP586x devices are a family of high performance LED matrix drivers. The device integrates 18 constant current sinks with N (N = 1/2/4/6/8/11) switching MOSFETs to support N × 18 LED dots or N × 6 RGB LEDs. The LP5861 integrates 1 MOSFET for up to 18 LED dots or 6 RGB LEDs.
The LP5861 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 LP5861 device implements full addressable SRAM to minimize the data traffic. The ghost-cancellation circuitry is integrated to eliminate both upside and downside ghosting. The LP5861 also supports LED open and short detection functions. Both 1-MHz (maximum) I2C and 12-MHz (maximum) SPI are available in LP5861.