Product Overview
The TPAFE411 is a Hall Sensor Signal Conditioning IC specifically designed for closed-loop current sensor modules utilizing Hall elements. It integrates precision excitation circuitry to mitigate Hall element offset and drift, along with a 350mA H-bridge for driving the sensor's compensation coil. The device features an internal precision current sensing amplifier to generate the output signal, a high-accuracy voltage reference, and a high-accuracy Hall sensor front-end. These integrated components significantly enhance the accuracy of the overall current sensor module. The TPAFE411 supports pin-selectable output voltages of 2.5V (with a 5V supply) and 1.65V (with a 3.3V supply), and is housed in a 4mm x 4mm QFN package with a PowerPAD for efficient heat dissipation. It operates reliably within an industrial temperature range of 40C to +125C.
Product Attributes
- Brand: 3PEAK
- Model: TPAFE411
- Package: QFN4X4-20
- Operating Temperature Range: 40C to +125C
Technical Specifications
| Specification | Details |
|---|---|
| Product Description | Hall Sensor Signal Conditioning IC for closed-loop current sensor modules. |
| Internal Precision Voltage Reference Accuracy | 0.2% (max) |
| Internal Precision Voltage Reference Temp Drift | 50ppm (max) |
| Pin Selectable Reference Voltages | 2.5V, 1.65V, Ratio Metric |
| Switching Current Hall Sensor Excitation | Reduces offset, drift, and 1/f noise. |
| H-Bridge Drive Capability | 350 mA |
| Precision Current Sensing Amplifier Offset | 100V (max) |
| Precision Current Sensing Amplifier Drift | 2V/C (max) |
| Precision Current Sensing Amplifier Bandwidth | 200kHz |
| Overrange and Error Flags | Included |
| Power Supply Range | 2.7V to 5.5V |
| Package Dimensions | QFN 4mm x 4mm with PowerPAD |
| Hall Sensor Excitation Voltage (VEX) | 0.7V - 0.95V (GAIN [00, 01, 10]), 0.6V - 0.95V (GAIN [11]) |
| Hall Sensor Excitation Current (IEX) | 10 mA (TA = -40C to 125C) |
| Front-end Input Voltage Offset (VOS_FE) | 20V - 100V (GAIN [00, 01, 10]), 5mV - 12mV (GAIN [11]) |
| Current Sensing Amplifier Input Offset Voltage (VOS) | 0.01mV - 0.2mV |
| Current Sensing Amplifier Gain (G) | 4 V/V |
| Compensation Coil Driver Peak Current | 300mA - 350mA (VDD = 5V), 150mA - 200mA (VDD = 3.3V) |
| Reference Voltage (VREF) REFSEL [00] | 2.495V - 2.505V |
| Reference Voltage (VREF) REFSEL [10] | 1.648V - 1.654V |
| Reference Voltage (VREF) REFSEL [11] | 49.6% - 50.4% VDD |
| Power Supply (VDD) | 2.7V - 5.5V |
| Quiescent Current (IQ) | 5.5mA - 8mA (IDRV = 0mA) |
| Power On Reset Threshold | 2.4V |
| Order Number | TPAFE411-QFOR |
2508281021_3PEAK-TPAFE411-QFOR_C22404345.pdf
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