CAT4002ATD-GT3

Description：IC LED DRV LIN MULT-STP TSOT23-6
Series：-
Mfr：onsemi
Package：Tape & Reel (TR)

SKU:f0c20287d2f4 Category: LED Drivers IC Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：IC LED DRV LIN MULT-STP TSOT23-6
Series：-
Mfr：onsemi
Package：Tape & Reel (TR)
Type：Linear
Topology：-
Internal Switch(s)：Yes
Number of Outputs：2
Voltage - Supply (Min)：2.4V
Voltage - Supply (Max)：5.5V
Voltage - Output：-
Current - Output / Channel：20mA
Frequency：-
Dimming：Multi-Step
Applications：Backlight
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：SOT-23-6 Thin, TSOT-23-6
Supplier Device Package：TSOT-23-6
Grade：-
Qualification：-

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CAT4002ATD-GT3

Overview

The CAT4002ATD-GT3 is a two-channel linear LED driver IC from onsemi, designed for constant current regulation. It operates within an input voltage range of 2.4 V to 5.5 V and delivers a fixed output current of 40 mA per channel. The device features EZDim interface support for dimming control and is housed in a TSOT-23-6 surface-mount package. It functions reliably across a temperature range of -40°C to +85°C with a maximum supply current of 500 µA.

Feature Summary

Provides dual independent constant current outputs for precise LED brightness control
Integrates EZDim interface for simplified external dimming signal processing
Utilizes linear topology to regulate current without requiring complex inductive components

Applications

LED backlighting systems for portable electronic devices
Indicator lighting circuits requiring low power consumption
General-purpose LED illumination modules

Procurement Notes

Verify component authenticity through authorized distribution channels due to end-of-life status. Confirm RoHS compliance documentation matches specific manufacturing lot requirements. Validate package marking against official datasheet specifications to ensure correct part identification during assembly processes.

Selection Notes

Select this component when designing compact LED drivers requiring dual-channel independence. Ensure the application voltage remains within the 2.4 V to 5.5 V operational window. Consider thermal management constraints associated with linear regulation at higher differential voltages compared to switching alternatives.

Part Context

This part belongs to the CAT4002A series of LED drivers. It shares functional similarities with other members like the CAT4003 and CAT4004 but differs in channel count and package configuration. The series focuses on simple, cost-effective solutions for low-power LED applications using linear regulation techniques.