A6273KLWTR

Overview

The A6273KLWTR is an eight-channel low-side power driver manufactured by Allegro MicroSystems. It features N-channel outputs with a maximum load voltage of 50V and a typical on-resistance of 1.3 ohms. The device operates within a supply voltage range of 4.5V to 5.5V and supports non-inverted inputs. Designed for surface-mount applications, it utilizes a 28-SSOP package with an exposed pad. The component functions as a latch driver with a 1:1 input-to-output ratio and includes integrated protection features.

Feature Summary

• Integrates eight independent low-side N-channel power switches for high-current load driving
• Features integrated protection mechanisms including overcurrent and thermal shutdown
• Supports PWM dimming control via non-inverted logic inputs

Applications

• Automotive exterior lighting systems
• Interior ambient lighting control
• General-purpose high-side or low-side load switching in industrial equipment

Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and tape-and-reel specifications. Ensure compatibility with existing PCB footprints and thermal management requirements. Confirm RoHS compliance status and automotive qualification levels if required for the target application environment.

Selection Notes

Select this component when multiple isolated low-side loads require simultaneous control from a single microcontroller interface. Consider the 50V rating and current handling capabilities relative to the connected load profile. Evaluate the thermal performance of the SSOP-EP package for the intended operating temperature range.

Part Context

This part belongs to the A6273 family of multi-channel power drivers designed for robust automotive and industrial environments. It provides a compact solution for replacing discrete transistor arrays, reducing board space and simplifying design complexity while maintaining high reliability standards.

Replacement Considerations

Direct substitutes include the A6273KA (DIP package) and TPIC6273N (Texas Instruments). Verify pinout compatibility and package dimensions before substitution.