LED1202QTR

Overview

The LED1202QTR is a 12-channel low quiescent current LED driver IC manufactured by STMicroelectronics. It features a boost topology with an output current capability of 20 mA per channel and operates within a supply voltage range of 2.6 V to 5 V. The device supports a working frequency of 400 kHz and provides a maximum output voltage of 5 V. It is housed in a QFN-20 package and functions reliably across a temperature range of -40 °C to +85 °C.

Feature Summary

• Provides independent 8-bit analog dimming control for each of the 12 output channels
• Integrates 12-bit internal PWM dimming control for high-resolution brightness adjustment
• Supports up to eight programmable patterns and stored sequences without MCU intervention
• Enables synchronization of multiple devices via a shared common clock domain

Applications

• Smart-home device lighting effects
• Wearable electronics illumination
• Small appliance indicator lights

Procurement Notes

Verify that the specific part number LED1202QTR corresponds to the QFN-20 package variant when sourcing components. Confirm that the supplier documentation explicitly references the 2.6 V to 5 V operating voltage range and the 400 kHz I²C interface speed. Ensure the received units match the manufacturer's specifications for the 12-channel boost topology configuration.

Selection Notes

Select this component when designing systems requiring independent current regulation for multiple LEDs with minimal external circuitry. The integrated boost converter and high current accuracy make it suitable for applications demanding precise color rendering and smooth animation effects. Consider the QFN-20 footprint constraints and thermal requirements during the PCB layout phase.

Part Context

The LED1202 series represents STMicroelectronics' portfolio of energy-efficient DC/DC powered LED drivers designed for general lighting and display backlighting. This specific model focuses on providing high-current accuracy and low-noise performance for parallel and series LED configurations, enabling compact solutions for consumer electronics.

Replacement Considerations

Consult official STMicroelectronics documentation for qualified substitute part numbers. Verify compatibility regarding package type, pinout, and electrical parameters before implementing any alternative components in the design.