L6506

Overview

The L6506 is a linear integrated circuit designed to sense and control current in stepping motors. It operates within a supply voltage range of 4.5 V to 7 V, with a maximum collector-emitter voltage of 7 V. The device features a dual configuration housed in a 20-pin SOIC package, measuring 13 mm in length and 2.35 mm in height. It supports an output current of 2.75 mA and draws a working supply current of 25 mA. The component functions across a temperature range from -40°C to +150°C.

Feature Summary

• Senses and controls current in stepping motors and similar inductive loads
• Performs interface functions from control logic through the power stage
• Forms constant current drive when used with compatible power drivers
• Allows synchronization of multiple devices via a dedicated sync pin

Applications

• Stepping motor current control systems
• Inductive load constant current drives
• Motor control interfaces combining logic and power stages

Procurement Notes

Verify the specific suffix (e.g., D, D013TR) against the required packaging format such as reel or cut tape. Confirm the operating temperature range meets environmental requirements. Ensure compatibility with the intended power driver ICs like L293 or L298 for proper system integration. Check moisture sensitivity levels if storage conditions are critical.

Selection Notes

Select this component for applications requiring precise linear current regulation in stepper motors. Consider the 20-pin SOIC package for surface mount assembly constraints. Evaluate the 4.5 V to 7 V supply range against available system voltages. Verify thermal performance within the -40°C to +150°C operational window for industrial environments.

Part Context

The L6506 belongs to the L6506 series of motor controllers manufactured by STMicroelectronics. It is categorized under PMIC and Motor/Motion/Ignition Controllers. The device complements power driver ICs to create complete drive solutions for inductive loads, serving as the current sensing and control element in the chain.

Replacement Considerations

L6506D

FAQ

How is synchronization achieved between multiple L6506 devices?

Multiple devices can be synchronized using the sync pin, where the oscillator in the master chip sets the operating frequency for all chips.

What is the recommended companion hardware for the L6506?

The L6506 is designed to work in conjunction with drivers such as the L293, L298, L7150, or L6114/L6115 to form a complete constant current drive system.