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Product Detailed Parameters
- Description：IC LED DRVR LINEAR 150MA 20SOIC
- 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：150mA
- Frequency：-
- Dimming：-
- Applications：-
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：20-SOIC
- Grade：-
- Qualification：-
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Overview
The A6277SLW is an eight-channel linear LED driver IC manufactured by Allegro MicroSystems. It utilizes a shift register topology to manage outputs with a maximum channel current of 150mA. The device operates within a supply voltage range of 4.5V to 5.5V and supports output voltages up to 4V. Designed for surface-mount installation, it is housed in a 20-SOIC package (7.50mm width). The component functions across an ambient temperature range of -40°C to +85°C.
Feature Summary
- Integrates an internal shift register for serial data input control of multiple channels
- Provides linear constant current regulation for precise LED brightness management
- Supports PWM dimming functionality for adjustable light intensity control
Applications
- Automotive interior lighting systems
- Industrial high-brightness LED arrays
- Consumer electronic display backlighting
Procurement Notes
Verify component status carefully as the A6277SLW is listed as obsolete or discontinued in major distributor databases. Confirm availability through authorized channels or check for valid replacement part numbers before finalizing procurement plans. Ensure compliance with RoHS regulations if required by specific project standards.
Selection Notes
Select this component when designing circuits requiring multi-channel LED control via serial interfaces. It is suitable for applications needing linear current regulation without complex external feedback networks. Consider the 20-SOIC package constraints and thermal dissipation requirements for the specified 150mA per channel output capability.
Part Context
This part belongs to the Allegro A6277 series of LED drivers. The manufacturer specializes in power integrated circuits and magnetic sensors for automotive and industrial markets. This specific model represents a legacy solution for multi-channel lighting control using linear drive technology.
Replacement Considerations
Consult official Allegro documentation for direct pin-compatible substitutes. Verify that any alternative maintains the same 20-SOIC footprint and 150mA channel current rating.
