TDA5140AT/C1,112

Overview

The TDA5140AT/C1,112 is a monolithic integrated circuit designed for brushless DC motor control applications. It integrates a three-phase power bridge capable of delivering up to 1 A output current. The device operates within a supply voltage range of 4 V to 18 V, with a nominal voltage of 14.5 V. It utilizes a 20-pin Small Outline Package (SOP) in the SOT-163A/SOL-20 form factor. The component supports operation at temperatures up to 70 °C and features a maximum supply current of 5 mA.

Feature Summary

• Integrates a three-phase power bridge for direct BLDC motor drive
• Supports low-voltage operation down to 4 V
• Includes protection mechanisms against overcurrent and thermal overload

Applications

• Brushless DC motor control in home appliances
• Fan speed regulation systems
• Pump control electronics

Procurement Notes

Verify the specific suffix C1,112 against official NXP documentation to confirm tape-and-reel packaging and RoHS compliance status. Ensure the operating temperature range aligns with system requirements, as this variant is rated for commercial temperatures up to 70 °C. Cross-reference the package outline SOL-20 with design guidelines to prevent footprint mismatches during PCB layout.

Selection Notes

Select this component for applications requiring a compact, single-chip solution for low-power BLDC motors. It is suitable where space constraints limit discrete driver designs. Consider the 1 A current limit when sizing for motor loads. Verify that the 70 °C junction temperature rating meets the environmental conditions of the target enclosure.

Part Context

This part belongs to the TDA5140 family of motion control ICs from NXP Semiconductors. These devices are engineered to simplify the design of brushless DC motor drives by combining gate drivers, logic, and power stages into a single package. The family targets cost-sensitive consumer electronics markets.

Replacement Considerations

Consult NXP datasheets for direct pin-compatible alternatives within the TDA51xx series. Verify electrical parameters such as current capability and supply voltage ranges before substituting.