TSM1013IDT

Overview

The TSM1013IDT is a constant voltage and constant current controller designed for battery charger applications. It incorporates a high stability series band gap voltage reference, two ORed operational amplifiers, and a current source. The IC compares the DC voltage and current level at the output of a switching power supply to an internal reference, providing feedback through an optocoupler to the PWM controller IC in the primary side. It operates with a supply voltage range of 4.5 V to 28 V and supports a maximum operating temperature of 105°C.

Feature Summary

• Provides constant voltage and constant current control for battery charging systems
• Integrates a high stability series band gap voltage reference with ORed operational amplifiers
• Enables feedback transmission to primary side PWM controllers via optocoupler
• Includes a controlled current generator for modifying current limitation levels

Applications

• Battery charger circuits
• Switching power supply regulation
• Constant voltage and current control systems

Procurement Notes

Verify the specific suffix 'DT' indicates tape and reel packaging when sourcing. Confirm RoHS compliance status as documentation may vary by production batch. Ensure the component matches the SOIC-8 package dimensions and pinout configuration required by the target design. Cross-reference the manufacturer part number with official STMicroelectronics databases to validate authenticity and active lifecycle status before procurement.

Selection Notes

Select this component for applications requiring precise voltage and current regulation in battery charging topologies. The integrated ORed operational amplifiers simplify circuit design by reducing external component count. Consider the 4.5 V to 28 V supply range compatibility with the system's power architecture. Evaluate the thermal performance requirements against the 105°C maximum operating temperature limit for the intended environment.

Part Context

The TSM1013IDT belongs to the TSM101 family of power supply support circuits manufactured by STMicroelectronics. This family focuses on managing switching power supplies through integrated voltage references and amplifiers. The device serves as a specialized interface between secondary side sensing and primary side control, ensuring stable output parameters in regulated power conversion systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.