TSCR420CX6H RFG

LED Driver IC Overview

The TSCR420CX6H RFG is a linear LED driver IC manufactured by Taiwan Semiconductor Corporation, designed for automotive lighting applications. It features a single output channel capable of delivering up to 10mA, with an adjustable output voltage range spanning from 1.4V to 40V. The device supports both linear and PWM dimming methods for precise light control. It operates within a supply voltage limit of 4.5V and is housed in a compact SOT-26 surface-mount package. Certified under AEC-Q100 standards, it ensures reliability across a wide operating temperature range of -40°C to 125°C.

LED Driver IC Feature Summary

• Integrated linear and PWM dimming capabilities for flexible brightness control
• AEC-Q100 qualified for robust automotive-grade performance
• Single-channel output design optimized for compact LED modules

LED Driver IC Applications

• Automotive interior ambient lighting systems
• Dashboard indicator illumination
• Compact LED accent lighting circuits

LED Driver IC Procurement Notes

Verify the specific suffix 'RFG' against the manufacturer's official datasheet to confirm packaging and tape-and-reel specifications. Ensure the selected variant matches the required SOT-26 footprint and pinout configuration for your PCB layout. Cross-reference the AEC-Q100 certification status directly with Taiwan Semiconductor documentation to validate automotive compliance requirements before finalizing procurement.

LED Driver IC Selection Notes

Select this component when a low-current, single-channel LED driver is required for automotive environments. The choice is driven by the need for combined linear and PWM dimming support within a small SOT-26 package. Consider the 40V maximum output voltage capability and the -40°C to 125°C operating range to ensure compatibility with harsh thermal conditions typical in vehicle interiors.

LED Driver IC Part Context

This part belongs to the TSCR42x series of LED drivers from Taiwan Semiconductor, which are engineered specifically for automotive lighting solutions. The series emphasizes high reliability and compliance with strict automotive quality standards. The TSCR420CX6H variant represents the lower current option within this family, offering a cost-effective solution for low-power illumination tasks where space constraints are critical.

LED Driver IC Replacement Considerations

The BCR421UE6327HTSA1 from Infineon Technologies is a documented alternative in the same functional category. However, note that the BCR421 offers a higher output current of 200mA compared to the 10mA of the TSCR420. Verify if the increased current capacity fits your application and check for any differences in pinout or control logic between the SOT-26 and SC-74 packages.