LM3550SPX/NOPB

$0.71

Description：IC LED DRVR CTRLR I2C 5A 20UQFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR)

SKU:c6b5f3f13a21 Category: LED Drivers IC Brand: Texas Instruments

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Product introduction

LM3550SPX/NOPB is listed in the LED Driver IC range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC LED DRVR CTRLR I2C 5A 20UQFN. Review the specifications below when checking this part for your BOM.

LED Driver IC specifications for LM3550SPX/NOPB

Description：IC LED DRVR CTRLR I2C 5A 20UQFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR)
Type：DC DC Controller
Topology：Switched Capacitor (Charge Pump)
Internal Switch(s)：No
Number of Outputs：1
Voltage - Supply (Min)：2.7V
Voltage - Supply (Max)：5.5V
Voltage - Output：5.3V
Current - Output / Channel：5A (Flash)
Frequency：1MHz
Dimming：I2C
Applications：Camera Flash
Operating Temperature：-30°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：20-UFQFN Exposed Pad
Supplier Device Package：20-UQFN (3x2.5)
Grade：-
Qualification：-

LED Driver IC datasheet and documents for LM3550SPX/NOPB

LM3550SPX/NOPB

LED Driver IC Overview

The LM3550SPX/NOPB is a single-channel LED lighting driver IC from Texas Instruments, designed for flash LED applications in DVR, automotive, and V&ESR detection systems. It operates within a supply voltage range of 2.7V to 5.5V and delivers up to 5A output current for flash modes. The device utilizes a switch capacitor (charge pump) topology with an internal switching frequency of 1MHz. It features I2C dimming control and overvoltage protection. Packaged in a 20-UQFN (3x2.5mm) case with exposed pad, it supports an operating temperature range of -30°C to +85°C.

LED Driver IC Feature Summary

Integrates I2C interface for digital dimming control and system configuration
Includes built-in overvoltage protection circuitry for enhanced reliability
Supports high-current flash LED driving via integrated charge pump topology

LED Driver IC Applications

Camera module flash LEDs
DVR system illumination
Automotive lighting applications
Video endoscope systems

LED Driver IC Procurement Notes

Verify the specific suffix 'X' against the manufacturer's official documentation to confirm package variant and tape-and-reel specifications. Ensure compatibility with I2C bus voltage levels and check moisture sensitivity level (MSL 3) requirements for surface mount assembly processes. Confirm that the 20-UQFN footprint matches the design layout.

LED Driver IC Selection Notes

Select this component when a compact, single-channel solution is required for high-intensity flash LED driving in mobile or embedded vision systems. The I2C interface allows for precise brightness control without additional GPIO usage. Consider the 20-UQFN package size constraints and thermal dissipation needs associated with the 5A peak current capability.

LED Driver IC Part Context

Part of the LM3550 series, which focuses on efficient LED drivers for portable devices. The LM3550 family provides solutions for both continuous and flash modes, integrating power switches and control logic to minimize external component count. This specific part targets applications requiring small form factors and digital control interfaces.