LP3943ISQX - Texas Instruments

Manufacturer Part Number

LP3943ISQX

Manufacturer

Texas Instruments

Introduction

The LP3943ISQX is a Power Management Integrated Circuit (PMIC) LED driver designed for various lighting applications.

Product Features and Performance

Integrated power switch functionality

16 individually controllable LED outputs

Programmable via I2C or SMBus interfaces

Supports a wide range of supply voltages from 2.3V to 5.5V

Capable of providing up to 25mA per channel

Shift register topology for signal processing

Designed for camera flash applications

Operational temperature range from -40°C to 85°C

24-WFQFN Exposed Pad for efficient thermal dissipation

Product Advantages

Multi-channel output capability enhances design flexibility

Wide voltage supply range accommodates various power sources

Efficient power management for LED applications

Easy programmability via common communication protocols

Key Technical Parameters

Number of Outputs: 16

Voltage Supply (Min): 2.3V

Voltage Supply (Max): 5.5V

Current Output / Channel: 25mA

Dimming control with I2C, SMBus

Topology: Shift Register

Quality and Safety Features

Built-in thermal protection

Overcurrent protection for LED outputs

Reliable operation in extended temperature ranges

Compatibility

Surface Mount compatible for PCB assembly

Compatible with standard I2C and SMBus communication protocols

Application Areas

Camera flash units

LED lighting solutions

Indicator lights for various electronic devices

Product Lifecycle

Obsolete product status

Replacements or upgrades may be available

End-of-Life notice should be checked with the manufacturer

Several Key Reasons to Choose This Product

Texas Instruments' reputation for high-quality and reliable products

The integration of 16 LED drivers simplifies design and reduces footprint

The ability to program each LED output individually enables complex lighting effects

Wide operating temperature range suitable for harsh environment applications

Support for standard communication protocols ensures compatibility with various microcontrollers and systems