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Product Detailed Parameters
- Description：IC LED DRVR LINEAR 75.5MA 16SOIC
- Series：-
- Mfr：Allegro MicroSystems
- Package：Tube
- Type：Linear
- Topology：Shift Register
- Internal Switch(s)：Yes
- Number of Outputs：8
- 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：Surface Mount
- Package / Case：16-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：16-SOIC
- Grade：-
- Qualification：-
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Overview
The A6275SLW-T is an integrated LED driver IC manufactured by Allegro Microsystems, designed for linear current regulation applications. It features eight independent output channels capable of delivering up to 75.5mA per channel. The device operates within a supply voltage range of 4.5V to 5.5V and supports an output voltage of 4V. It utilizes a shift register topology with a maximum operating frequency of 20MHz. The component is housed in a 16-SOIC surface-mount package with dimensions of 7.50mm width. It functions reliably across an ambient temperature range of -20°C to +85°C.
Feature Summary
- Provides eight individually controllable linear output channels for precise LED current regulation
- Integrates a serial shift register interface for simplified digital control and dimming capabilities
- Features internal switching elements to manage load connections directly
Applications
- General-purpose LED lighting arrays requiring uniform current distribution
- Display backlighting systems utilizing multiple LED strings
- Industrial indicator panels with multi-channel illumination requirements
Procurement Notes
Verify the specific suffix 'T' indicates tape-and-reel packaging configuration when sourcing. Confirm RoHS3 compliance status as documentation may vary by production batch. Ensure the 16-SOIC footprint matches the target PCB layout constraints. Validate that the 5.5V maximum supply voltage aligns with the system power architecture before integration.
Selection Notes
Select this component for designs requiring eight synchronized linear outputs from a single package. It is suitable for low-voltage systems operating between 4.5V and 5.5V. Consider the 20MHz shift rate for high-speed data transmission needs. Evaluate thermal dissipation requirements based on the total channel current and ambient temperature limits of -20°C to +85°C.
Part Context
This part belongs to the A6275 family of linear LED drivers from Allegro MicroSystems. It shares architectural similarities with other variants like the A6275SA and A6275SLW, differing primarily in packaging and reel specifications. The family is characterized by its shift-register-controlled linear regulation topology.
FAQ
What is the maximum operating frequency for the shift register?
The maximum operating frequency for the shift register is 20MHz.
Does the device include internal switches?
Yes, the A6275SLW-T includes internal switching elements for each output channel.
