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TPAFE411 PDF预览

TPAFE411

更新时间: 2024-04-09 19:00:13
品牌 Logo 应用领域
思瑞浦 - 3PEAK /
页数 文件大小 规格书
17页 993K
描述
Hall Sensor Signal Conditioning IC

TPAFE411 数据手册

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TPAFE411  
HALL Sensor Signal Conditioning IC  
Features  
Description  
Internal Precision Voltage Reference  
The TPAFE411 is designed only for Hall elements to use in  
closed-loop current-sensor modules. The internal precision  
excitation circuitry for the Hall-element could effectively  
eliminate the offset and offset-drift of the Hall element. The  
TPAFE411 also provides a 350mA H-bridge for driving the  
sensor compensation coil, and an internal precision current  
sensing amplifier to generate the output signal.  
Accuracy: 0.2% (max)  
Temp Drift: 50ppm (max)  
Pin Selectable for 2.5V, 1.65V, and Ratio Metric  
Switching Current HALL Sensor Excitation  
Reduce HALL Sensor Offset and Drift  
Reduce HALL Sensor 1/f Noise  
There is a high accuracy voltage reference, high accuracy HALL  
Sensor front end and precision current sensing amplifier inside  
TPAFE411. These techniques significantly improve the  
accuracy of the overall current-sensor module. When the power  
supply is 5V, the output voltage is pin-selectable to support a  
2.5V output. When the power supply is 3.3V, the output voltage  
is to support a 1.65V output.  
Extended Current Measurement Range  
H-Bridge Drive Capability: 350 mA  
Precision Current Sensing Amplifier  
Offset and Drift: 100μV and 2μV/°C (Max)  
Bandwidth: 200kHz  
Overrange and Error Flags  
For the heat dissipation, 4mm × 4-mm QFN package with  
PowerPAD is selected for the TPAFE411. The TPAFE411 is  
specified to work over industrial temperature range of –40°C to  
+125°C.  
Power Supply: 2.7V to 5.5V  
Package: QFN 4mm x 4mm with PowerPAD  
Temp Range: 40°C to +125°C  
Applications  
Close-Loop HALL Sensor Module  
Function Block Diagram  
www.3peak.com  
Rev.A.1  
1 / 17  
 
 
 
 

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