LM3502SQX-44/NOPB

$1.14

Description：IC LED DRV RGLTR PWM 16WQFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR)

SKU:9481497fe976 Category: LED Drivers IC Brand: Texas Instruments

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Product introduction

LM3502SQX-44/NOPB is listed in the LED Driver IC range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC LED DRV RGLTR PWM 16WQFN. Review the specifications below when checking this part for your BOM.

LED Driver IC specifications for LM3502SQX-44/NOPB

Description：IC LED DRV RGLTR PWM 16WQFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR)
Type：DC DC Regulator
Topology：Step-Up (Boost)
Internal Switch(s)：Yes
Number of Outputs：2
Voltage - Supply (Min)：2.5V
Voltage - Supply (Max)：5.5V
Voltage - Output：44V
Current - Output / Channel：750mA (Switch)
Frequency：1MHz
Dimming：PWM
Applications：Backlight
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：16-WFQFN Exposed Pad
Supplier Device Package：16-WQFN (4x4)
Grade：-
Qualification：-

LED Driver IC datasheet and documents for LM3502SQX-44/NOPB

LM3502SQX-44/NOPB

LED Driver IC Overview

The LM3502SQX-44/NOPB is a step-up DC/DC converter designed for white LED applications. It operates from a supply voltage range of 2.5V to 5.5V and delivers an output voltage up to 44V. The device features an internal switch capable of handling 750mA switching current and supports PWM dimming control. It is housed in a 16-WQFN (4x4 mm) package with exposed thermal pad, suitable for surface-mount installation across an operating temperature range of -40°C to 85°C.

LED Driver IC Feature Summary

Integrated high-efficiency step-up DC/DC converter topology
Supports pulse-width modulation (PWM) dimming control
Configurable constant current output via external resistors

LED Driver IC Applications

White LED backlighting systems
Portable electronic display illumination
Battery-powered lighting modules

LED Driver IC Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free compliance and RoHS status. Confirm the '-44' designation matches the required 44V output capability for the target application. Ensure the 16-WQFN package dimensions align with PCB footprint requirements. Check for obsolescence status as some variants may be discontinued.

LED Driver IC Selection Notes

Select this component when a compact solution for driving white LEDs from low-voltage sources is required. The internal 750mA switch handles moderate current loads. Verify that the 44V maximum output voltage exceeds the forward voltage sum of the LED string. Consider thermal performance due to the small WQFN package size.

LED Driver IC Part Context

This part belongs to the LM3502 family of LED drivers from Texas Instruments. Variants like LM3502SQ-44 differ primarily in packaging or environmental ratings. The SQX suffix typically denotes a specific tape-and-reel packaging format within the WQFN series.

LED Driver IC Replacement Considerations

Direct substitutes include LM3502SQ-44/NOPB if package compatibility is confirmed. Cross-reference pinouts and electrical specifications carefully before substitution.

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Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.