Texas Instruments LP5860RKPR

The LP5860RKPR, produced by Texas Instruments, is a high-performance LED matrix driver designed to drive up to 198 LED dots or 66 RGB pixels using a time-multiplexing matrix scheme. This device integrates 18 constant current sinks with 11 switching MOSFETs, enabling flexible and efficient LED matrix control. It supports both analog and PWM dimming methods, ensuring smooth and vivid animation effects without audible noise. The LP5860RKPR also features full addressable SRAM, ghost cancellation circuitry, and low brightness compensation technology to enhance user experience and reduce data traffic.

• LED Matrix Topology: 18 constant current sinks with 11 scan switches, configurable for 1 to 11 scan switches, supporting up to 198 LED dots or 66 RGB pixels.
• Dimming Options: Supports both analog dimming and PWM dimming. Analog dimming allows 256 steps of current gain control per LED dot, while PWM dimming uses 8-bit or 16-bit configurable PWM generators for smooth and noise-free dimming.
• Low Power Consumption: Ultra-low power consumption with shutdown mode current ≤ 1 μA, standby mode current ≤ 10 μA, and active mode current of 4.3 mA (typ.) at 5 mA channel current.
• Ghost Cancellation and Low Brightness Compensation: Implements de-ghosting circuitry to eliminate upside and downside ghosting and low brightness compensation to overcome color-shift and non-uniformity in low brightness conditions.
• SRAM and Data Management: Full addressable SRAM with entire SRAM data refresh and partial SRAM data update capabilities to minimize data traffic.
• LED Open and Short Detection: Built-in functions for detecting open and short circuits in LEDs.
• Communication Interfaces: Supports both 1-MHz I2C and 12-MHz SPI interfaces.

• Display Panels: Suitable for various display panels requiring high-density LED matrices, such as signage, scoreboards, and information displays.
• Automotive Displays: Used in automotive applications like dashboard displays, infotainment systems, and other LED-based visual interfaces.
• Consumer Electronics: Ideal for LED displays in consumer electronics like TVs, monitors, and gaming consoles.
• Industrial Control Panels: Applicable in industrial control panels and human-machine interfaces (HMIs) that require robust and efficient LED matrix control.

1. What is the maximum number of LED dots the LP5860RKPR can drive?

   The LP5860RKPR can drive up to 198 LED dots or 66 RGB pixels.

2. What are the supported dimming methods for the LP5860RKPR?

   The device supports both analog dimming and PWM dimming methods.

3. What is the typical shutdown supply current of the LP5860RKPR?

   The typical shutdown supply current is 1 μA.

4. Does the LP5860RKPR support LED open and short detection?

   Yes, it has built-in functions for detecting open and short circuits in LEDs.

5. What communication interfaces are supported by the LP5860RKPR?

   The device supports both 1-MHz I2C and 12-MHz SPI interfaces.

6. How does the LP5860RKPR manage ghosting issues in LED matrices?

   The device implements de-ghosting circuitry to eliminate both upside and downside ghosting.

7. What is the operating voltage range for the LP5860RKPR?

   The operating voltage range is from 2.7 V to 5.5 V.

8. Can the LP5860RKPR be used in high-temperature environments?

   Yes, it supports operating temperatures from –55°C to +125°C for extended temperature devices.

9. How does the LP5860RKPR handle low brightness conditions?

   The device uses low brightness compensation technology to overcome color-shift and non-uniformity in low brightness conditions.

10. What is the typical active mode current consumption of the LP5860RKPR?

    The typical active mode current is 4.3 mA when the channel current is 5 mA.