LM27952SDX

$0.75

Description：IC LED DRV RGLTR PWM 30MA 14WSON
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR)

SKU:246879ee7b31 Category: LED Drivers IC Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC LED DRV RGLTR PWM 30MA 14WSON
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR)
Type：DC DC Regulator
Topology：Switched Capacitor (Charge Pump)
Internal Switch(s)：Yes
Number of Outputs：4
Voltage - Supply (Min)：3V
Voltage - Supply (Max)：5.5V
Voltage - Output：2.5V ~ 3.9V
Current - Output / Channel：30mA
Frequency：750kHz
Dimming：PWM
Applications：Backlight
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：14-WFDFN Exposed Pad
Supplier Device Package：14-WSON (4x3)
Grade：-
Qualification：-

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LM27952SDX

Overview

The LM27952SDX is a Texas Instruments LED lighting driver IC designed for white LED applications. It features an adaptive 1.5X/1X switched capacitor topology with four output channels. The device operates within a supply voltage range of 3V to 5.5V and delivers up to 30mA per channel. It supports direct PWM dimming and functions at a switching frequency of 750kHz. The component is housed in a 14-WFDFN package and operates between -40°C and +85°C.

Feature Summary

Adaptive 1.5X/1X switched capacitor topology for efficient voltage regulation
Four independent output channels supporting up to 30mA each
Direct PWM dimming capability for precise brightness control

Applications

White LED backlighting systems
General LED illumination drivers
Portable electronic display backlights

Procurement Notes

Verify the specific suffix (e.g., NOPB) against the datasheet to confirm RoHS compliance and exact pinout configuration. Ensure the ordering part number matches the required package type and temperature rating. Cross-reference the manufacturer's latest documentation to validate current production status and availability constraints before finalizing procurement plans.

Selection Notes

Select this component for applications requiring multi-channel LED driving with high efficiency. The adaptive charge pump design minimizes power loss across varying input voltages. Consider the 14-WFDFN package for compact board layouts. Verify that the 750kHz switching frequency aligns with EMI requirements and that the 30mA output current meets the target LED string specifications.

Part Context

The LM27952 belongs to Texas Instruments' family of LED lighting driver ICs. It utilizes a switched capacitor architecture to regulate current for multiple LEDs. This series is engineered for high-efficiency performance in space-constrained designs, offering integrated protection features and flexible dimming options suitable for modern display and lighting solutions.