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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：-20°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 A6276SA is a linear LED driver IC manufactured by Allegro MicroSystems, designed for high-brightness LED applications. It features a 16-channel shift register topology with internal switches, delivering a constant output current of 75.5mA per channel. The device operates on a supply voltage range of 4.5V to 5.5V and supports PWM dimming at frequencies up to 20MHz. Packaged in a 24-DIP (0.300 inch) through-hole format, it functions within an ambient temperature range of -20°C to 85°C.
Feature Summary
- Integrates a 16-output shift register for serial data input control
- Provides adjustable constant current regulation via external resistor
- Supports pulse-width modulation (PWM) dimming for brightness control
Applications
- Automotive interior lighting systems
- Industrial LED indicator arrays
- Consumer electronic display backlighting
Procurement Notes
Verify component authenticity due to discontinued status. Confirm package integrity as the original DIP tube packaging has been subject to change notices. Ensure compatibility with existing 5V logic levels and thermal management requirements for the specified operating temperature range before integration.
Selection Notes
Select this part for designs requiring multiple low-current LED channels controlled via a single serial interface. It is suitable for applications where linear regulation efficiency is acceptable and space constraints allow for through-hole mounting. Consider alternative surface-mount variants if PCB real estate is limited.
Part Context
This component belongs to the A6276 family of linear LED drivers from Allegro MicroSystems. It shares functional similarities with other models in the series but is distinguished by its specific 24-DIP package and 75.5mA output current rating. The family is generally targeted at automotive and industrial illumination markets.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout and electrical specifications against potential alternatives such as other A627x series variants or competitive linear drivers.
