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Product Detailed Parameters
- Description：IC LED DRVR LINEAR 75.5MA 24SOIC
- 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：Surface Mount
- Package / Case：24-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：24-SOIC
- Grade：-
- Qualification：-
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Overview
The Allegro A6276ELW is a linear LED driver IC featuring 16 outputs with a maximum channel current of 75.5mA. It operates on a supply voltage range of 4.5V to 5.5V and supports an output voltage of 4V. The device utilizes a shift register topology for data input and includes internal switches. Designed for surface mount installation, it is housed in a 24-SOIC package (0.295" width). The component supports PWM dimming and functions within an operating temperature range of -40°C to 85°C.
Feature Summary
- Integrates 16 independent linear output channels controlled via a serial shift register interface.
- Includes internal switching capability to manage LED load connections directly.
- Supports pulse-width modulation (PWM) dimming for brightness control applications.
Applications
- Segmented LED display drivers
- Common-anode LED matrix systems
- Industrial indicator lighting arrays
Procurement Notes
Verify the specific suffix ELW against current manufacturer documentation to confirm RoHS compliance status, as variants may differ. Confirm lead times and availability through authorized distributors, noting that this part number may be subject to discontinuation or lifecycle changes. Ensure the selected package matches the required PCB footprint specifications for the 24-SOIC form factor.
Selection Notes
Select this component when a multi-channel linear drive solution is required for low-voltage LED segments. The 75.5mA per channel rating suits moderate brightness applications without requiring external power transistors. Consider the 24-pin SOIC package constraints and thermal dissipation requirements relative to the total number of active channels during continuous operation.
Part Context
The A6276 belongs to Allegro's family of linear LED driver integrated circuits designed for segment and matrix displays. It provides a compact alternative to discrete transistor arrangements for driving multiple LEDs from a single controller. The device simplifies board layout by integrating the shift register logic and output drivers into a single package.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing circuit designs before considering alternative manufacturers or pin-compatible devices.
