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Product Detailed Parameters
- Description：IC LED DRVR LIN PWM 350MA 6DFN
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：-
- Internal Switch(s)：No
- Number of Outputs：1
- Voltage - Supply (Min)：-
- Voltage - Supply (Max)：18V
- Voltage - Output：40V
- Current - Output / Channel：350mA
- Frequency：-
- Dimming：PWM
- Applications：Lighting, Signage
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：6-UDFN Exposed Pad
- Supplier Device Package：U-DFN2020-6
- Grade：Automotive
- Qualification：AEC-Q101
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Overview
The BCR421UFDQ-7 is a linear LED driver IC from Diodes Incorporated, designed for high-reliability applications. It features a single output channel delivering a constant current of 350 mA. The device operates within an input voltage range of 1.4 V to 40 V and supports a maximum supply voltage of 40 V. It utilizes a U-DFN2020-6 surface-mount package. The component is qualified under AEC-Q100 standards for automotive use. Operating temperatures span from -55 °C to +150 °C, with a power dissipation rating of 1.7 W and a maximum supply current of 10 mA.
Feature Summary
- Provides stable constant current regulation for LED loads
- Supports PWM dimming control for brightness adjustment
- Automotive-grade reliability with AEC-Q100 qualification
- Operates across an extended industrial temperature range
Applications
- Automotive exterior lighting systems
- Interior vehicle illumination circuits
- High-reliability general-purpose LED drivers
Procurement Notes
Verify the specific suffix 'Q' indicates AEC-Q100 automotive qualification status as per manufacturer documentation. Confirm the U-DFN2020-6 package dimensions match PCB layout requirements. Ensure thermal management design accommodates the specified 1.7 W power dissipation limit during operation.
Selection Notes
Select this component when a single-channel linear driver with automotive certification is required. It is suitable for designs needing a wide input voltage range up to 40 V. Consider the U-DFN2020-6 footprint constraints and thermal performance characteristics relative to alternative packages in the BCR42x series.
Part Context
This part belongs to the BCR42x family of linear LED drivers by Diodes Incorporated. Variants such as BCR420UFD-7 offer similar electrical specifications but may differ in specific automotive qualification or pinout configurations. The BCR421UFDQ-7 specifically targets applications requiring robust performance under automotive environmental conditions.
Replacement Considerations
BCR420UFD-7 shares identical electrical parameters including 350 mA output and 40 V max voltage. Verify if the replacement variant maintains the necessary AEC-Q100 automotive qualification and compatible U-DFN2020-6 packaging for direct substitution.
