STM802BDR

Overview

The STM802BDR is a solenoid controller IC designed for switch mode current regulation with in-rush and holding modes. It operates within an 8 V to 35 V supply voltage range and features a built-in gate drive voltage clamp, logic-controlled enabling circuit, and digital in-rush timer. The device integrates an internally trimmed timing oscillator, eliminating the need for external timing capacitors. It includes a fixed in-rush/hold current ratio of approximately 4.5 and low drop current sensing. The component is housed in an 8-SOIC package and supports surface mount mounting.

Feature Summary

• Wide DC supply voltage range from 8 V to 35 V
• Built-in gate drive voltage clamp (typical 11 V)
• Digital in-rush timer with typical duration of 64 ms
• Logic-controlled enabling circuit for gate output

Applications

• Solenoid control systems
• Switch mode current regulation
• Gate drive control for external power MOSFETs

Procurement Notes

Verify the obsolete status of this component before procurement. Confirm that the Tape & Reel packaging matches the BDR suffix requirements. Ensure the application design accommodates the specific electrical characteristics provided in the datasheet.

Selection Notes

Select this IC for applications requiring precise in-rush and hold current control for solenoids without external timing components. Verify that the operating supply voltage remains between 8 V and 35 V. Ensure the external MOSFET selection aligns with the specified supply voltage and current limits.

Part Context

The STM802BDR belongs to the STM802 series of solenoid controllers manufactured by STMicroelectronics. It is specifically designed for applications needing controlled current ramp-up and steady-state holding currents for electromagnetic coils.

Replacement Considerations

This product is marked as obsolete. Identify alternative solenoid controller ICs from STMicroelectronics or other manufacturers that offer similar in-rush/hold current ratios and compatible SO-8 packaging.