TPAFE411-QFOR

Specialized Overview

The TPAFE411-QFOR is a Hall sensor signal conditioning IC designed for closed-loop current sensor modules. It integrates a precision voltage reference, H-bridge driver, and differential amplifier. The device operates on a 2.7V to 5.5V supply with an industrial temperature range of -40°C to +125°C. Key electrical parameters include a maximum accuracy of 0.2%, temperature drift of 50 ppm/°C, and offset/drift of 100 μV and 2 μV/°C respectively. The H-bridge provides 350 mA drive capability, while the bandwidth reaches 200 kHz. Output voltages are pin-selectable at 2.5 V or 1.65 V depending on the supply.

Specialized Feature Summary

• Internal precision excitation circuitry effectively eliminates Hall element offset and drift.
• Integrated 350 mA H-bridge drives sensor compensation coils.
• Pin-selectable output supports 2.5 V or 1.65 V configurations.
• Includes overrange and error flags for system protection.

Specialized Applications

• Closed-loop Hall sensor modules

Specialized Procurement Notes

Verify the specific ordering suffix QFOR against official documentation to confirm package type and quantity specifications. Ensure compatibility with the required operating temperature range and power supply constraints before procurement. Cross-reference the manufacturer's latest datasheet revision to validate all technical parameters and application notes.

Specialized Selection Notes

Select this component when designing closed-loop current sensors requiring high precision and low noise. Verify that the 350 mA H-bridge current capability meets the compensation coil requirements. Confirm that the 2.7 V to 5.5 V supply range aligns with the system design. Ensure the QFN 4mm x 4mm package fits the thermal and spatial constraints of the PCB layout.

Specialized Part Context

The TPAFE411 is part of the 3PEAK Hall sensor signal conditioning family. It is specifically engineered to interface with Hall elements in closed-loop current sensing applications. The device combines analog front-end processing with digital control features to enhance overall sensor module accuracy and stability across varying environmental conditions.

Specialized Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Consult the manufacturer for potential alternatives if this part is unavailable.

Specialized FAQ

How is the output voltage configured?

The output voltage is pin-selectable via REFSEL1 and REFSEL2 pins. For a 5 V supply, it can be set to 2.5 V; for a 3.3 V supply, it can be set to 1.65 V.

What is the function of the H-bridge driver?

The H-bridge driver provides up to 350 mA of current to drive the sensor compensation coil, which is essential for the operation of closed-loop Hall current sensors.

What protection features are included?

The device includes overrange and error flags (open-drain outputs) to indicate fault conditions such as signal clipping, power failure, or Hall sensor disconnection.