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Product Detailed Parameters
- Description：IC LED DRVR LINEAR 75.5MA 24DIP
- Series：-
- Mfr：Allegro MicroSystems
- Package：Tube
- Type：Linear
- Topology：Shift Register
- Internal Switch(s)：Yes
- Number of Outputs：16
- Voltage - Supply (Min)：4.5V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：4V
- Current - Output / Channel：75.5mA
- Frequency：20MHz
- Dimming：-
- Applications：-
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Through Hole
- Package / Case：24-DIP (0.300", 7.62mm)
- Supplier Device Package：24-DIP
- Grade：-
- Qualification：-
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Overview
The A6276EA is a linear LED driver IC manufactured by Allegro MicroSystems, designed for high-brightness LED applications. It features a shift register topology with sixteen independent outputs, each capable of delivering up to 75.5mA. The device operates on a supply voltage ranging from 4.5V to 5.5V and supports PWM dimming at frequencies up to 20MHz. Packaged in a 24-DIP (0.300 inch) format, it is rated for an operating temperature range of -40°C to 85°C.
Feature Summary
- Integrates a serial shift register interface for efficient control of sixteen output channels.
- Provides constant current regulation via linear topology for precise LED brightness control.
- Supports pulse-width modulation (PWM) dimming for dynamic luminance adjustment.
Applications
- Automotive interior lighting systems
- Industrial LED indicator arrays
- Consumer electronic display backlights
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels due to discontinued status. Confirm package integrity and pin alignment against the 24-DIP specification. Review official datasheets for handling precautions and thermal management requirements specific to linear drivers.
Selection Notes
Select this component when a low-voltage (5.5V max) linear solution is required for multi-channel LED control. Ensure the application does not exceed the 75.5mA per channel limit. Consider the DIP package constraints for PCB layout compared to surface-mount alternatives in the same family.
Part Context
Part of the A627x series of linear LED drivers from Allegro MicroSystems. This series focuses on simple serial control interfaces for driving multiple LEDs without complex switching regulators. The EA suffix denotes the specific 24-DIP package variant within the broader product line.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs if considering alternative manufacturers or newer Allegro models with similar pinouts and electrical characteristics.
