TEA1731TS/1,115

Overview

The TEA1731TS/1,115 is a switched-mode power supply controller IC from NXP Semiconductors designed for flyback topologies. It operates within an input voltage range of 12 V to 30 V and supports a maximum switching frequency of 66 kHz with a duty cycle up to 80%. The device features integrated overpower protection and low supply current consumption. It is housed in a TSOP-6 surface-mount package.

Feature Summary

• Integrated peak current and frequency control mode for flyback converters
• Frequency jitter implementation to reduce electromagnetic interference
• Internal overpower time-out protection mechanism
• Low supply current operation for improved efficiency

Applications

• Flyback topology power supplies
• Low-cost SMPS designs
• Adapters requiring high efficiency

Procurement Notes

This component is marked as discontinued by the manufacturer. Verification of availability through authorized distributors or secondary market sources is required. Confirm RoHS compliance status and check for valid replacement part numbers before procurement planning.

Selection Notes

Select this controller for applications requiring a cost-effective solution for flyback converters up to 75 W. Ensure the design accommodates the fixed frequency operation with jitter and verify that the TSOP-6 package fits the PCB layout constraints.

Part Context

Part of the TEA173X GreenChip series, focusing on efficient power management. It integrates slope compensation for continuous conduction mode and allows overtemperature protection with minimal external components.

Replacement Considerations

Verify compatibility with TEA1731TS/1Z as a potential alternative. Check pinout and electrical specifications against the original datasheet to ensure functional equivalence.