LM27966SQ

$1.37

Description：IC LED DRV RGLTR I2C 30MA 24WQFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR)

SKU:9e4f94000a29 Category: LED Drivers IC Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC LED DRV RGLTR I2C 30MA 24WQFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR)
Type：DC DC Regulator
Topology：Switched Capacitor (Charge Pump)
Internal Switch(s)：Yes
Number of Outputs：6
Voltage - Supply (Min)：2.7V
Voltage - Supply (Max)：5.5V
Voltage - Output：2V ~ 4V
Current - Output / Channel：30mA
Frequency：1.27MHz
Dimming：I2C
Applications：Backlight
Operating Temperature：-30°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：24-WFQFN Exposed Pad
Supplier Device Package：24-WQFN (4x4)
Grade：-
Qualification：-

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LM27966SQ

Overview

The LM27966SQ is a white LED driver IC from Texas Instruments featuring six constant current outputs. It utilizes a charge pump topology to drive up to six LEDs in parallel with a total output current of 180 mA, or 30 mA per channel. The device operates on an input voltage range of 2.7 V to 5.5 V and supports I2C compatible control for dimming. It functions within a switching frequency of 890 kHz to 1.57 MHz and delivers an output voltage between 2 V and 4 V. The component is housed in a WQFN-24 package and operates at temperatures from -30°C to +85°C.

Feature Summary

Six-channel constant current regulation with high current matching accuracy
I2C compatible interface for digital control and dimming
Inductor-less switched capacitor design for compact implementation

Applications

Backlight drivers for mobile devices
White LED lighting systems
Portable electronic displays

Procurement Notes

Verify the specific suffix against official documentation to confirm RoHS compliance and lead-free status. Ensure the ordering part number matches the required package variant and temperature rating. Cross-reference datasheet revisions to confirm pinout compatibility and electrical specifications before procurement.

Selection Notes

Select this component for applications requiring precise multi-channel LED current regulation without magnetic components. The I2C interface allows for system-level brightness control. Consider the 24-WQFN package size for space-constrained designs. Verify that the input voltage range aligns with the system power supply rails.

Part Context

This device belongs to the LM27966 series of LED drivers designed for portable electronics. It integrates a charge pump and six current sources into a single solution. The series targets applications needing uniform LED brightness across multiple channels. It replaces discrete solutions by combining regulation and control functions.