仕様
| 属性 | 値 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Type | DC DC Regulator |
| Topology | Switched Capacitor (Charge Pump) |
| Internal Switch(s) | Yes |
| Number of Outputs | 9 |
| Voltage - Supply (Min) | 2.7V |
| Voltage - Supply (Max) | 5.5V |
| Current - Output / Channel | 25.5mA |
| Frequency | 1.25MHz |
| Dimming | PWM |
| Applications | Backlight |
| Operating Temperature | -30°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
概要
Description
The LP55231SQX/NOPB is a programmable RGB LED driver from Texas Instruments. It is designed to control RGB LED modules in portable devices, providing a compact and efficient solution for color mixing and lighting effects. The device integrates a microcontroller with 96 bytes of RAM and a program memory that allows for customization and execution of complex lighting sequences without the need for continuous communication from the host processor, reducing power consumption.
Key features include an I²C-compatible interface for communication, support for up to three LED channels, and independent PWM generators for each channel to achieve smooth dimming and color effects. The LP55231 also offers features such as low noise, high efficiency, and a wide operating voltage range, making it suitable for battery-powered applications.
In summary, the LP55231SQX/NOPB is ideal for applications requiring precise control of RGB lighting, such as mobile phones, wearable devices, or any product that benefits from customizable and efficient LED animation sequences.
Key features include an I²C-compatible interface for communication, support for up to three LED channels, and independent PWM generators for each channel to achieve smooth dimming and color effects. The LP55231 also offers features such as low noise, high efficiency, and a wide operating voltage range, making it suitable for battery-powered applications.
In summary, the LP55231SQX/NOPB is ideal for applications requiring precise control of RGB lighting, such as mobile phones, wearable devices, or any product that benefits from customizable and efficient LED animation sequences.
Equivalent
The LP55231SQX/NOPB is a programmable RGB LED driver from Texas Instruments. Equivalent products might include similar RGB LED drivers from other manufacturers such as the NXP PCA9633, Microchip Technology's MCP23017, or On Semiconductors' CAT9532. However, direct one-to-one equivalents may vary based on specific features and functionalities, so it's crucial to compare datasheets to ensure compatibility with your requirements.
Features
The LP55231SQX/NOPB is an advanced programmable LED driver from Texas Instruments. Key features include:
1. Programmable LED Driver: Capable of driving up to 3 LEDs with individual color mixing and intensity control.
2. 12-Bit PWM Control: Provides precise brightness control with a 12-bit PWM for each output channel.
3. Internal Memory and Engine: Includes programmable memory and an engine for autonomous operation without MCU intervention.
4. I²C Compatible Interface: Supports communication via an I²C interface for easy integration with microcontrollers.
5. Low Power Consumption: Optimized for low power operation, making it suitable for battery-powered applications.
6. Current Sink Outputs: Features constant current sink outputs with a maximum current drive capability per channel.
7. Wide Supply Voltage Range: Operates over a wide supply voltage range, enhancing flexibility in design.
8. Automatic Power-Saving Modes: Includes power-saving modes to reduce energy consumption when not in active use.
9. Compact Package: Available in a compact package, suitable for space-constrained applications.
This device is often used in applications requiring efficient, programmable LED control, like portable electronics and signaling devices.
1. Programmable LED Driver: Capable of driving up to 3 LEDs with individual color mixing and intensity control.
2. 12-Bit PWM Control: Provides precise brightness control with a 12-bit PWM for each output channel.
3. Internal Memory and Engine: Includes programmable memory and an engine for autonomous operation without MCU intervention.
4. I²C Compatible Interface: Supports communication via an I²C interface for easy integration with microcontrollers.
5. Low Power Consumption: Optimized for low power operation, making it suitable for battery-powered applications.
6. Current Sink Outputs: Features constant current sink outputs with a maximum current drive capability per channel.
7. Wide Supply Voltage Range: Operates over a wide supply voltage range, enhancing flexibility in design.
8. Automatic Power-Saving Modes: Includes power-saving modes to reduce energy consumption when not in active use.
9. Compact Package: Available in a compact package, suitable for space-constrained applications.
This device is often used in applications requiring efficient, programmable LED control, like portable electronics and signaling devices.
Pinout
The LP55231SQX/NOPB is an LED driver IC produced by Texas Instruments. It typically comes in a 16-pin package. The main functions of this IC are to control RGB LEDs with programmable color mixing and automated lighting effects. It includes features such as:
1. 16-pin Package: The IC is encapsulated in a 16-pin WQFN (DSBGA) package.
2. LED Driver: It can drive up to three RGB LEDs or nine individual LEDs with independent PWM control.
3. Integrated Engine: The LP55231 has a programmable engine that allows for automated LED control without continuous processor intervention.
4. Communication Interface: It supports I2C communication for interfacing with a host microcontroller.
5. Current Control: It offers precise current control with up to 25.5 mA per LED channel.
6. Applications: It is used in mobile phones, portable devices, and other applications requiring efficient and programmable LED control.
This IC is particularly valued for its low power consumption and advanced features that simplify the design of complex LED lighting patterns.
1. 16-pin Package: The IC is encapsulated in a 16-pin WQFN (DSBGA) package.
2. LED Driver: It can drive up to three RGB LEDs or nine individual LEDs with independent PWM control.
3. Integrated Engine: The LP55231 has a programmable engine that allows for automated LED control without continuous processor intervention.
4. Communication Interface: It supports I2C communication for interfacing with a host microcontroller.
5. Current Control: It offers precise current control with up to 25.5 mA per LED channel.
6. Applications: It is used in mobile phones, portable devices, and other applications requiring efficient and programmable LED control.
This IC is particularly valued for its low power consumption and advanced features that simplify the design of complex LED lighting patterns.
Manufacturer
The LP55231SQX/NOPB is manufactured by Texas Instruments (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits. It is one of the largest semiconductor companies in the world and focuses on developing analog chips and embedded processors, which are widely used in various electronic devices and systems. TI serves industries such as automotive, industrial, personal electronics, communications equipment, and enterprise systems.
Application
The LP55231SQX/NOPB is a programmable LED driver designed for various lighting applications. Key application areas include:
1. Mobile Devices: Useful in smartphones and tablets for LED backlighting and notifications.
2. Wearable Technology: Ideal for fitness trackers and smartwatches requiring efficient low-power lighting.
3. Consumer Electronics: Suitable for devices like cameras and MP3 players needing flexible lighting solutions.
4. Industrial Applications: Employed in control panels and indicator lights.
5. Automotive Lighting: Used in ambient lighting and dashboard displays.
Its programmability, high efficiency, and ability to drive multiple LEDs make it versatile for diverse applications requiring precise and customizable lighting solutions.
1. Mobile Devices: Useful in smartphones and tablets for LED backlighting and notifications.
2. Wearable Technology: Ideal for fitness trackers and smartwatches requiring efficient low-power lighting.
3. Consumer Electronics: Suitable for devices like cameras and MP3 players needing flexible lighting solutions.
4. Industrial Applications: Employed in control panels and indicator lights.
5. Automotive Lighting: Used in ambient lighting and dashboard displays.
Its programmability, high efficiency, and ability to drive multiple LEDs make it versatile for diverse applications requiring precise and customizable lighting solutions.
Package
The LP55231SQX/NOPB is a programmable LED driver from Texas Instruments, typically packaged in a space-efficient 24-pin WQFN (Quad Flat No-leads) package. This packaging allows for compact design implementations, suitable for applications requiring efficient power management for LEDs.
