DRV411AIRGPT
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Описание
DRV411 Sensor Signal Conditioning IC
Texas Instruments DRV411 Sensor Signal Conditioning IC is designed to condition InSb Hall elements for use in closed-loop current-sensor modules. The DRV411 provides precision excitation circuitry for the Hall-element effectively eliminating the offset and offset-drift of the Hall element. This device also provides a 250mA H-bridge for driving the sensor compensation coil as well a precision differential amplifier to generate the output signal. The 250mA drive capability of the H-bridge roughly doubles the current measurement range compared to conventional single-ended drive methods. The Hall sensor front-end circuit and the differential amplifier employ proprietary offset cancelling techniques. These techniques, along with a high-accuracy voltage reference, significantly improve the accuracy of the overall current-sensor module. The output voltage is pin-selectable to support a 2.5V output for use with a 5V power supply, as well as 1.65V for 3.3V sensors. For optimum heat dissipation, the DRV411 is available in thermally enhanced 4mm x 4mm QFN and TSSOP-20 with PowerPAD packages.
Texas Instruments DRV411 Sensor Signal Conditioning IC is designed to condition InSb Hall elements for use in closed-loop current-sensor modules. The DRV411 provides precision excitation circuitry for the Hall-element effectively eliminating the offset and offset-drift of the Hall element. This device also provides a 250mA H-bridge for driving the sensor compensation coil as well a precision differential amplifier to generate the output signal. The 250mA drive capability of the H-bridge roughly doubles the current measurement range compared to conventional single-ended drive methods. The Hall sensor front-end circuit and the differential amplifier employ proprietary offset cancelling techniques. These techniques, along with a high-accuracy voltage reference, significantly improve the accuracy of the overall current-sensor module. The output voltage is pin-selectable to support a 2.5V output for use with a 5V power supply, as well as 1.65V for 3.3V sensors. For optimum heat dissipation, the DRV411 is available in thermally enhanced 4mm x 4mm QFN and TSSOP-20 with PowerPAD packages.
Технические параметры
Brand: | Texas Instruments |
Development Kit: | DRV411EVM |
Factory Pack Quantity: Factory Pack Quantity: | 250 |
Features: | AFE for Magnetic Current Sensing |
Input Type: | Magnetic Sensor |
Manufacturer: | Texas Instruments |
Maximum Operating Temperature: | +125 C |
Minimum Operating Temperature: | -40 C |
Moisture Sensitive: | Yes |
Mounting Style: | SMD/SMT |
Number of Channels: | 1 Channel |
Operating Supply Voltage: | 2.7 V to 5.5 V |
Output Voltage: | 2.5 V |
Package / Case: | QFN-20 |
Product Category: | Sensor Interface |
Product Type: | Sensor Interface |
Reference Type: | External, Internal |
Series: | DRV411 |
Subcategory: | Interface ICs |
Supply Voltage - Max: | 5.5 V |
Supply Voltage - Min: | 2.7 V |
Type: | Magnetic Sensor Signal Conditioner |