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CSA-1V Dataheets PDF



Part Number CSA-1V
Manufacturers GMW Associates
Logo GMW Associates
Description Current Sensor
Datasheet CSA-1V DatasheetCSA-1V Datasheet (PDF)

www.DataSheet4U.com GMW CSA-1V Current Sensor Sentron CSA-1V Revised Jan 2005 Features: • Sensitive to a magnetic field parallel to the chip surface • Very high sensitivity • Linear output voltage proportional to a magnetic field • Wide-band: DC to 100kHz • Very low offset and offset -drift • Very low noise • Isolated from current conductor • Surface mount SOIC-8 package Applications: • AC and/or DC current measurement • Wide-Band Magnetic Field Measurement • Battery Chargers • AC-DC Convert.

  CSA-1V   CSA-1V


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www.DataSheet4U.com GMW CSA-1V Current Sensor Sentron CSA-1V Revised Jan 2005 Features: • Sensitive to a magnetic field parallel to the chip surface • Very high sensitivity • Linear output voltage proportional to a magnetic field • Wide-band: DC to 100kHz • Very low offset and offset -drift • Very low noise • Isolated from current conductor • Surface mount SOIC-8 package Applications: • AC and/or DC current measurement • Wide-Band Magnetic Field Measurement • Battery Chargers • AC-DC Converters • Motor Control General Description The CSA -1V is a single-axis integrated mag netic field sensor based on the Hall effect. The circuit is fabricated using a conventional CMOS technology with an additional ferromagnetic layer. The ferromagnetic layer is used as a magnetic flux concentrator providing a high magnetic gain. Therefore, the circuit features very high magnetic sensitivity, low offset, and low noise. The CSA-1V is packaged in a standard SOIC-8 full plastic package. This package provides: • highest isolation for applications with the current conductor on the PCB (up to 600V) • highest sensitivity for applications with the current lead above the chip. DataShee DataSheet4U.com Package: Pin Out: B 1 2 3 4 5 6 7 8 A_OUT, analog sensor output VDD pos. supply voltage Not connected 1) PV, programming voltage GND, supply common 1) PD, programming data 1) PC, programming clock CO_OUT, common output SOIC-8 Note 1: Used for factory programming Manufactured by: Sentron AG (A Melexis Company) • Baarerstrasse 73 • 6300 Zug • Switzerland • Tel: +41 (41) 711 2170 • Fax: +41 (41) 711 2188 www.sentron.ch • [email protected] • 1 GMW Associates. 955 Industrial Rd, San Carlos, CA 94070 www.gmw.com. Tel: (650) 802-8292. Fax: (650) 802-8298. Email [email protected] DataSheet4U.com DataSheet 4 U .com www.DataSheet4U.com GMW Absolute Maximum Ratings Symbol VSUP T Parameter Supply Voltage Ambient Temperature Min. 0 -40 Typ. Max. 6 +150 Unit V o C Sentron CSA-1V Revised Jan 2005 Remarks Recommended Operating Conditions Symbol VSUP I OUT CL Parameter Supply Voltage Output Current Load Capacitance Min. 4.5 -1 Typ. 5 Max. 5.5 1 1000 Unit V mA pF Remarks Electrical Characteristics At T=-40°C to 150°C, VSUP =4.5V to 5.5V if not otherwise specified. Symbol I SUP VCommon BW tR Parameter Supply Current Common (reference) 2) Output Voltage Bandwidth: DC to Response Time Min. VSUP/2 -20mV Typ. 11 VSUP /2 100 6 Max. 16 VSUP/2 +20mV Unit mA Test Conditions I OUT =0mA kHz µs Note 2: Ratiometric (proportional to VSUP ) Characteristics of the Linear Magnetic Field Sensor 3,4) With VSUP = 5V and in the temperature range -40 C to 150 C, if not otherwise specified. Symbol S ∆S/S∆T Voff Boff D Voff/D T BFS BL NL ∆Bnoise Parameter 3) Magnetic Sensitivity Magn. Sensitivity Temperature Drift 3) Offset Voltage Equivalent Magnetic Offset 3) o o et4U.com Min. 270 0.02 -15 -50 -0.2 -7.5 -5 Typ. 6) 280 Max. 290 0.02 15 50 0.2 7.5 5 Unit V/T %/°C mV mT mV/°C mT mT % nT/ √H z 0 0 0 DataSheet4U.com Offset Temperature Drift Full Scale Magnetic Field 5) Range Linear Magnetic Field Range Non Linearity Input referred magnetic noise spectrum density (RMS) Test Conditions B = BL I OUT =0mA T=-20°C to 125°C B=0T, Iout=0mA, T=20°C B=0T, IOUT =0mA T=-20°C to 80°C B=0T, IOUT =0mA, T=-20°C to 125°C DataShee 0.1 0.5 0.2 1 125 B = BL B = BFS f=10Hz to 10kHz Note 3: Ratiometric (proportional to V SUP ) Note 4: When the analog output pin A_OUT is used in differential mode (ie Vout = A_OUT – CO_OUT) Note 5: Device saturates for B>Bfs but is not damaged Note 6: Specification correction: Was 300+/ - 10 V/T. Now 280+/ - 10 V/T. All parts manufactured to date, have been calibrated to 280+/- V/T Manufactured by: Sentron AG (A Melexis Company) • Baarerstrasse 73 • 6300 Zug • Switzerland • Tel: +41 (41) 711 2170 • Fax: +41 (41) 711 2188 www.sentron.ch • [email protected] • 2 GMW Associates. 955 Industrial Rd, San Carlos, CA 94070 www.gmw.com. Tel: (650) 802-8292. Fax: (650) 802-8298. Email [email protected] DataSheet4U.com DataSheet 4 U .com www.DataSheet4U.com GMW Block Diagram Sentron CSA-1V Revised Jan 2005 Fig. 1 Block diagram of CSA -1V For reliable operation within the specifications the sensor must be connected as follows: IMPORTANT et4U.com Connect Pin 6 (PD) to Pin 5 (GND) Connect Pin 7 (PC) to Pin 2 (Vdd) Connect Pin 4 (PV) to Pin 2 (Vdd) Put a 100nF capacitor close to the chip between Pin 2 (Vdd) and Pin 5 (GND) V SUP DataShee DataSheet4U.com CSA-1V 1 A_Out 2 Vdd 3 n.c. 4 PV 100nF* GND * CO_OUT 8 PC 7 PD 6 GND 5 GND If the supply voltage is disturbed by EMI it can be useful to place a second capacitor (100pF, ceramic) parallel to the 100nF capacitor. Fig. 2 Connection diagram of CSA-1V 3 Manufactured by: Sentron AG (A Melexis Company) • Baarerstrasse 73 • 6300 Zug • Switzerland • Tel: +41 (41) 711 2170 • Fax: +41 (41) 711 2188 www.sentron.ch • [email protected] • GMW Associates. 955 Industrial Rd, San Carlos, CA 94070 www.gmw.com. .


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