LP5018RSMR LED Driver: Datasheet, Alternatives, CAD Models

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Published: 23 March 2022 | Last Updated: 23 March 2022

2024

LP5018RSMR

LP5018RSMR

Texas Instruments

0.4mm PMIC LP5018 15MHz 3.3V 32-VFQFN Exposed Pad

Purchase Guide

0.4mm PMIC LP5018 15MHz 3.3V 32-VFQFN Exposed Pad

The LP5018RSMR device is an 18- or 24-channel constant-current-sink LED driver. This article is going to introduce LP5018RSMR from the perspectives of datasheet, package, manufacturer, and specification.

LP5018RSMR Description

High-performance RGB LED drivers are required in smart homes and other applications that use human-machine interaction. Flashing, breathing, and chasing LED animation effects substantially enhance the user experience, and system noise must be kept to a minimum.

The LP5018RSMR  is a constant current sink LED driver with 18  or 24  channels. Pre-configuration streamlines the software coding process for the LP5018RSMR  device, which provides integrated color mixing and brightness control. For each channel, integrated 12  -bit, 29  kHz PWM generators provide smooth, vibrant color and reduce perceptible noise.


LP5018RSMR Applications

LED Lighting, Indicator Lights, and Fun Lights for:

• Smart Speaker (With Voice Assistant)

• Smart Home Appliances

• Video Doorbell

• Electronic Smart Lock

• Smoke and Heat Detector

• STB and DVR

• Smart Router

• Handheld Device


LP5018RSMR Functional Block Diagram

functional block diagram.jpg

LP5018RSMR Features

  • Operating Voltage Range:

– VCC Range: 2.7 V to 5.5 V

– EN, SDA, and SCL  Pins Compatible With 1.8-V, 3.3-V, and 5-V Power Rails

– Output Maximum Voltage: 6 V

  • 24 Constant-Current Sinks With High Precision

– 25.5 mA Maximum per Channel With VCC in Full Range

– 35 mA Maximum per Channel When VCC ≥ 3.3V

– Device-to-Device Error: ±7%; Channel-to channel Error: ±7%

  • Ultralow Quiescent Current:

– Shutdown Mode: 1 µA (Maximum) With EN Low

– Power Saving Mode: 10 µA (Typical) With EN High and All LEDs  Off for > 30 ms

  • Integrated 12-Bit, 29-kHz PWM Generator  for Each Channel:

– Independent Color-Mixing Register Per Channel

– Independent Brightness-Control Register Per RGB LED Module 

– Optional Logarithmic- or Linear-Scale Brightness Control

– Integrated 3-Phase PWM-Shifting Scheme 

  • 3 Programmable Banks (R, G, B) for Easy Software Control of Each Color

  • 2 External Hardware Address Pins  Allow Connecting up to 4 Devices

  • Broadcast Slave Address Allows Configuring Multiple Devices Simultaneously

  • Auto-Increment Allows Writing or Reading Consecutive Registers Within One Transmission

  • Up to 400-kHz Fast-Mode I2C Speed


LP5018RSMR CAD Models

Symbol

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Footprint

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3D Models

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Specifications

Texas Instruments LP5018RSMR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments LP5018RSMR.
  • Type
    Parameter
  • Factory Lead Time
    12 Weeks
  • Mounting Type

    The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.

    Surface Mount
  • Package / Case

    refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.

    32-VFQFN Exposed Pad
  • Surface Mount

    having leads that are designed to be soldered on the side of a circuit board that the body of the component is mounted on.

    YES
  • Operating Temperature

    The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.

    -40°C~85°C TA
  • Packaging

    Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.

    Tape & Reel (TR)
  • JESD-609 Code

    The "JESD-609 Code" in electronic components refers to a standardized marking code that indicates the lead-free solder composition and finish of electronic components for compliance with environmental regulations.

    e4
  • Pbfree Code

    The "Pbfree Code" parameter in electronic components refers to the code or marking used to indicate that the component is lead-free. Lead (Pb) is a toxic substance that has been widely used in electronic components for many years, but due to environmental concerns, there has been a shift towards lead-free alternatives. The Pbfree Code helps manufacturers and users easily identify components that do not contain lead, ensuring compliance with regulations and promoting environmentally friendly practices. It is important to pay attention to the Pbfree Code when selecting electronic components to ensure they meet the necessary requirements for lead-free applications.

    yes
  • Part Status

    Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.

    Active
  • Moisture Sensitivity Level (MSL)

    Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures

    2 (1 Year)
  • Number of Terminations
    32
  • Type
    Linear
  • Terminal Finish

    Terminal Finish refers to the surface treatment applied to the terminals or leads of electronic components to enhance their performance and longevity. It can improve solderability, corrosion resistance, and overall reliability of the connection in electronic assemblies. Common finishes include nickel, gold, and tin, each possessing distinct properties suitable for various applications. The choice of terminal finish can significantly impact the durability and effectiveness of electronic devices.

    Nickel/Palladium/Gold (Ni/Pd/Au)
  • Applications

    The parameter "Applications" in electronic components refers to the specific uses or functions for which a component is designed. It encompasses various fields such as consumer electronics, industrial automation, telecommunications, automotive, and medical devices. Understanding the applications helps in selecting the right components for a particular design based on performance, reliability, and compatibility requirements. This parameter also guides manufacturers in targeting their products to relevant markets and customer needs.

    Lighting
  • Terminal Position

    In electronic components, the term "Terminal Position" refers to the physical location of the connection points on the component where external electrical connections can be made. These connection points, known as terminals, are typically used to attach wires, leads, or other components to the main body of the electronic component. The terminal position is important for ensuring proper connectivity and functionality of the component within a circuit. It is often specified in technical datasheets or component specifications to help designers and engineers understand how to properly integrate the component into their circuit designs.

    QUAD
  • Number of Functions
    1
  • Supply Voltage

    Supply voltage refers to the electrical potential difference provided to an electronic component or circuit. It is crucial for the proper operation of devices, as it powers their functions and determines performance characteristics. The supply voltage must be within specified limits to ensure reliability and prevent damage to components. Different electronic devices have specific supply voltage requirements, which can vary widely depending on their design and intended application.

    3.3V
  • Terminal Pitch

    The center distance from one pole to the next.

    0.4mm
  • Frequency

    In electronic components, the parameter "Frequency" refers to the rate at which a signal oscillates or cycles within a given period of time. It is typically measured in Hertz (Hz) and represents how many times a signal completes a full cycle in one second. Frequency is a crucial aspect in electronic components as it determines the behavior and performance of various devices such as oscillators, filters, and communication systems. Understanding the frequency characteristics of components is essential for designing and analyzing electronic circuits to ensure proper functionality and compatibility with other components in a system.

    15MHz
  • Base Part Number

    The "Base Part Number" (BPN) in electronic components serves a similar purpose to the "Base Product Number." It refers to the primary identifier for a component that captures the essential characteristics shared by a group of similar components. The BPN provides a fundamental way to reference a family or series of components without specifying all the variations and specific details.

    LP5018
  • JESD-30 Code

    JESD-30 Code refers to a standardized descriptive designation system established by JEDEC for semiconductor-device packages. This system provides a systematic method for generating designators that convey essential information about the package's physical characteristics, such as size and shape, which aids in component identification and selection. By using JESD-30 codes, manufacturers and engineers can ensure consistency and clarity in the specification of semiconductor packages across various applications and industries.

    S-PQCC-N32
  • Number of Outputs
    18
  • Voltage - Output

    Voltage - Output is a parameter that refers to the electrical potential difference between the output terminal or pin of an electronic component and a reference point, typically ground. It indicates the level of voltage that the component is capable of providing at its output under specified operating conditions. This parameter is crucial in determining the performance and functionality of the component in a circuit, as it directly affects the signal or power being delivered to other components or devices connected to the output. Engineers and designers use the voltage output specification to ensure compatibility and proper functioning of the component within the overall system.

    0V~5.5V
  • Internal Switch(s)

    The term "Internal Switch(s)" in electronic components typically refers to a built-in mechanism within a device that allows for the control of electrical current flow. These internal switches can be used to turn circuits on or off, change the direction of current, or regulate the flow of electricity within the component. They are often designed to be controlled externally, either manually or automatically, to enable various functions or operations within the electronic device. Internal switches play a crucial role in the overall functionality and performance of electronic components by providing a means to manage and manipulate electrical signals effectively.

    No
  • fmax-Min

    fmax-Min refers to the frequency range that an electronic component or system can operate within. It represents the difference between the maximum frequency (fmax) and the minimum frequency (Min) limits of operation. This parameter is crucial in defining the bandwidth of the component, indicating how effectively it can transmit or receive signals over that range. A wider fmax-Min value typically signifies better performance for applications that require broad frequency response.

    0.4 MHz
  • Dimming

    Dimming is a feature in electronic components, such as LED lights or display screens, that allows the user to adjust the brightness level of the device. It is a method of controlling the amount of light output by the component, typically by varying the voltage or current supplied to it. Dimming can be achieved through various techniques, such as pulse-width modulation (PWM) or analog dimming. This feature is commonly used to save energy, create ambiance, or enhance visual comfort in different applications.

    I2C
  • Number of Segments
    24
  • Voltage - Supply (Max)

    Voltage - Supply (Max) is a parameter in electronic components that specifies the maximum voltage that can be safely applied to the component for proper operation. This parameter is crucial for ensuring the component's longevity and preventing damage due to overvoltage conditions. Exceeding the maximum supply voltage can lead to component failure, reduced performance, or even permanent damage. Designers must carefully consider this parameter when selecting components and designing circuits to ensure reliable and safe operation within the specified voltage limits.

    5.5V
  • Voltage - Supply (Min)

    Voltage - Supply (Min) is a parameter in electronic components that specifies the minimum voltage required for the component to operate within its specified performance range. This parameter indicates the lowest voltage level that can be safely applied to the component without causing malfunctions or damage. It is crucial to ensure that the supply voltage provided to the component is equal to or higher than the specified minimum voltage to guarantee proper functionality and reliability. Failure to meet this requirement may result in erratic behavior, reduced performance, or even permanent damage to the component.

    2.7V
  • Multiplexed Display Capability

    Multiplexed Display Capability refers to the ability of an electronic component or system to control multiple display elements using fewer input/output lines. This is achieved by rapidly switching between different displays or segments, allowing for efficient communication and reduced wiring complexity. In multiplexed systems, each display is activated sequentially, creating the illusion of simultaneous display to the user. This capability is commonly utilized in devices like LED matrices and LCD screens to enhance functionality while conserving space and resources.

    NO
  • Data Input Mode

    Data Input Mode in electronic components refers to the specific method or protocol used to input data into the component. This parameter determines how data is received and processed by the component, whether it be through serial communication, parallel communication, or other interfaces. The data input mode is crucial for ensuring compatibility and proper functioning of the component within a larger electronic system. Understanding and configuring the data input mode correctly is essential for effective data transfer and communication between different components in a circuit or system.

    SERIAL
  • Length
    4mm
  • Height Seated (Max)

    Height Seated (Max) is a parameter in electronic components that refers to the maximum allowable height of the component when it is properly seated or installed on a circuit board or within an enclosure. This specification is crucial for ensuring proper fit and alignment within the overall system design. Exceeding the maximum seated height can lead to mechanical interference, electrical shorts, or other issues that may impact the performance and reliability of the electronic device. Manufacturers provide this information to help designers and engineers select components that will fit within the designated space and function correctly in the intended application.

    1mm
  • Width
    4mm
  • RoHS Status

    RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.

    ROHS3 Compliant
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LP5018RSMR Dimensions

Height1mm
Length4mm
Width900μm
Thickness4mm


LP5018RSMR Package

LP5018RSMR Pin Configuration and Functions

QQ截图20220323103515.jpg

PIN

NameNO.I/ODESCRIPTION
ADDR0 25-I²C slave-address selection pin. This pin must not be left floating.
ADDR126-I²C slave-address selection pin. This pin must not be left floating.
EN30IChip enable input pin
IREF 31-Output current-reference global-setting pin
NC19,20,21,
22,23,24
-No internal connection
OUT01OCurrent sink output 0. If not used, this pin can be left floating.
OUT12OCurrent sink output 1. If not used, this pin can be left floating.
OUT23OCurrent sink output 2. If not used, this pin can be left floating.
OUT34OCurrent sink output 3. If not used, this pin can be left floating.
OUT45OCurrent sink output 4. If not used, this pin can be left floating.
OUT56OCurrent sink output 5. If not used, this pin can be left floating.
OUT67OCurrent sink output 6. If not used, this pin can be left floating.
OUT78OCurrent sink output 7. If not used, this pin can be left floating.
OUT89OCurrent sink output 8. If not used, this pin can be left floating.
OUT910OCurrent sink output 9. If not used, this pin can be left floating.
OUT1011OCurrent sink output 10. If not used, this pin can be left floating.
OUT1112OCurrent sink output 11. If not used, this pin can be left floating.
OUT1213OCurrent sink output 12. If not used, this pin can be left floating.
OUT1314OCurrent sink output 13. If not used, this pin can be left floating.
OUT1415OCurrent sink output 14. If not used, this pin can be left floating.
OUT1516OCurrent sink output 15. If not used, this pin can be left floating.
OUT1617OCurrent sink output 16. If not used, this pin can be left floating.
OUT1718OCurrent sink output 17. If not used, this pin can be left floating.
SCL29II²C bus clock line. If not used, this pin must be connected to GND or VCC.
SDA28I/OI²C bus data line. If not used, this pin must be connected to GND or VCC.
VCAP32-Internal LDO output pin, this pin must be connected to a 1--µF capacitor to GND. Place the capacitor as close to the device as possible.
VCC27IInput power.
GND
-An exposed thermal pad also serves as the ground pin for the device.


LP5018RSMR Advantages

1. PWM Control for Each Channel

The high-resolution PWM generator is solely utilized for intensity control in most traditional LED drivers, which are built for single-color LEDs. To obtain the desired look using RGB LEDs, however, both color mixing and intensity control must be handled. Users must manage color mixing and intensity control simultaneously with a single PWM register in the old solution. When utilizing a logarithmic scale control, several undesirable effects occur restricted dimming steps, difficult software design, and color distortion.

 2. LED Bank Control

Most LED animation effects, such as blinking and breathing, use the same illumination pattern across all RGB LEDs,  Instead of operating each LED individually, which consumes a lot of microcontroller resources, the LP5018RSMR  device offers a simple coding solution called LED bank control.

3. Current Range Setting 

A single external resistor, RIREF, controls the constant-current value (ISET) of all 24 channels. The output current is close to zero when the IREF  pin is floating. The LP5018RSMR  device provides internal current-limit protection when the IREF  pin is shorted to GND, and the output-channel maximum current is limited to ILIM.

4. Automatic Power-Save Mode

When all of the LED outputs are turned off, the LP5018RSMR  device can automatically enter power-saving mode, cutting idle current consumption to 10 A. (typical). When register bit Power Save EN = 1 (default) and all LEDs are off for more than 30 milliseconds, an automatic power-saving mode is enabled. In power-saving mode, almost all analog blocks are turned off. The LP5018RSMR  device returns to NORMAL mode if any I2C commands are sent to it.

5. Protection Features-Thermal Shutdown

The thermal shutdown feature in the LP5018RSMR  gadget protects the device from harm caused by overheating. The device enters shutdown mode when the junction temperature reaches 160°C (typical). When the junction temperature of the LP5018RSMR  device is dropped to 145°C, the device releases thermal shutdown  (typical).


LP5018RSMR Alternatives

Part namesDescriptionManufacturer
TLC5951RHAT24-ch 12-bit PWM LED driver w/7-bit dot correction 8-bit global brightness 40-VQFN -40 to 85Texas Instruments
TLC5952DAP24-channel constant-current LED driver with global brightness and LED open Short Detection 32-HTSSOP -40 to 85Texas Instruments
MAX6974ATL-TLED Driver, BICMOS, PQCC40Maxim Integrated Products
TLC5951RHAR24-ch 12-bit PWM LED driver w/7-bit dot correction 8-bit global brightness 40-VQFN -40 to 85Texas Instruments
MAX6974ATL+LED Driver, 24-Segment, BICMOS, 6 X 6 MM, 0.80 MM EIGHT, LEAD FREE, MO-220WJJD-2, TQFN-40Maxim Integrated Products
TLC5951DAPR24-ch 12-bit PWM LED driver w/7-bit dot correction 8-bit global brightness 38-HTSSOP -40 to 85Texas Instruments
TLC5951RTAR24-ch 12-bit PWM LED driver w/7-bit dot correction 8-bit global brightness 40-WQFN -40 to 85Texas Instruments
LP5024RSMR24-channel I2C constant-current RGB LED driver 32-VQFN -40 to 85Texas Instruments


Trend Analysis

Datasheet PDF

Download datasheets and manufacturer documentation for Texas Instruments LP5018RSMR.

Parts with Similar Specs

Frequently Asked Questions

What’s the recommended operating conditions?

Input voltage on VCC is between 2.7 and 5.5v. The voltage on OUTx is between 0 and 5.5v. The voltage on ADDRx, EN, SDA, and SCL is between 0 and 5.5v. 

How many pins does LP5018RSMR have?

32

Can LP5018RSMR be operated in 100℃?

No, its operating ambient temperature is from -40 to 85℃.

What’s the main parameters of LP5018RSMR?

The main parameters of this part are: 18-channel I2C constant-current RGB LED driver 32-VQFN -40 to 125.

What’s LP5018RSMR?

LP5018RSMR is an 18- or 24-channel constant-current-sinkLEDdriver. LP5018RSMR improves the user experience in color mixing and brightness control, from both live effects and coding efforts.
LP5018RSMR

Texas Instruments

In Stock: 10000

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