TMR1340BS MULTIDIMENSION | Alldatasheet

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Technical content

Description

TMR134x is an omnipolar magnetic switch integrated the tunnel magnetoresistance (TMR) magnetic sensor and open-drain circuitry, which is able to detect the change of magnetic field and output high and low voltage signals for high accuracy position detection. Unlike Hall/AMR sensors, TMR sensors with extremely high resistance values allows TMR134x to achieve the supply current as low as 1.5 μA while operating in the full-time power supply mode, and maintaining the response frequency of the magnetic signal is 1 kHz. Therefore, TMR134x can provide true continuous detection of magnetic field signals, avoiding sampling errors from the traditional time-sharing power supply mode. TMR134x allows a wide range of operating supply voltages from 1.8 V to 5.5 V with excellent temperature characteristics, and can meet the requirements of most applications. TMR134x is available in two compact SOT23-3 and LGA3L (2 mm × 1.5 mm × 0.63 mm) packages. Features and benefits

  • Tunneling magnetoresistance (TMR) technology
  • Low power consumption: supply current 1.5 μA
  • High frequency response: typ.1 kHz
  • Omnipolar operation
  • Wide range supply voltages: 1.8 V to 5.5 V
  • Open-drain push-pull output
  • High sensitivity
  • Excellent temperature stability
  • High tolerance to external magnetic field interference
  • RoHS & REACH compliant

Applications

  • Utility meters: water, gas, and heat meters
  • Proximity switches
  • Speed sensing
  • Linear and rotation position sensing MicroAmpere High Frequency Response Omnipolar Magnetic Switch Sensor TMR134x SOT23-3 LGA3L VOUT H Datasheet MultiDimension Technology Co., Ltd. http://www.dowaytech.com/en/ Version 2.1

Point Package Packing Form TMR1340BS 1.5 μA 1 kHz -40°C to 125°C ±14 Gs ±10 Gs SOT23-3 Tape & Reel TMR1341G 1.5 μA 1 kHz -40°C to 125°C ±34 Gs ±30 Gs LGA3L Tape & Reel TMR1342G 1.5 μA 1 kHz -40°C to 125°C ±42 Gs ±37 Gs LGA3L Tape & Reel TMR1343G 1.5 μA 1 kHz -40°C to 125°C ±50 Gs ±45 Gs LGA3L Tape & Reel TMR1345G 1.5 μA 1 kHz -40°C to 150°C ±72 Gs ±63 Gs LGA3L Tape & Reel Note: Please contact MultiDimension Technology local sales for customizing operating and release points. Catalogue MultiDimension Technology Co., Ltd. http://www.dowaytech.com/en/ TMR134x MicroAmpere High Frequency Response Omnipolar Magnetic Switch Sensor

Figure 1. Block diagram

  1. Switching Characteristics

Figure 2. Sensing direction release point BRPS (BRPN) as shown in Figure 3. Figure 3. Switching characteristics

1 TOP VIEW

Figure 4. Pin configuration MultiDimension Technology Co., Ltd.

  1. Absolute Maximum Ratings Parameters Symbol Min. Max. Unit Supply voltage VCC -0.3 7 V Output current ISINK - 20 mA Magnetic flux density B - 4000 Gs ESD performance (HBM) VESD - 4 kV Operating ambient temperature TA -40 125 °C Storage ambient temperature TSTG -50 150 °C Note: ISINK is the current flowing through the pin of sensor, when the output is turned on. 5. Electrical Specifications VCC = 3 V, TA = 25 °C Parameter Symbol Condition Min. Typ. Max. Unit Supply voltage VCC operating 1.8 3.0 5.5 V Output stress voltage Vstress - - - 5.5 V Output leak current Ileak OUT = H - - 1 μA On resistance of output RON OUT = L - - 10 Ω Off resistance of output ROFF OUT = H - 10 - MΩ Output low voltage VOL OP status 0 - 0.1 V Supply current ICC output open - 1.5 - μA Response frequency F - 0 to 1000 Hz Note: A 0.1 μF capacitor is connected between VCC and GND, and 1 kΩ pull-up resistor is connected between VCC and VOUT MultiDimension Technology Co., Ltd. http://www.dowaytech.com/en/ TMR134x MicroAmpere High Frequency Response Omnipolar Magnetic Switch Sensor
  1. Magnetic Specifications VCC = 3 V, TA = 25 °C, a 0.1 μF capacitor is connected between VCC and GND TMR1340BS Parameter Symbol Min. Typ. Max. Unit Operate point BOPS 10 14 25 Gs BOPN -25 -14 -10 Gs Release point BRPS 5 10 20 Gs BRPN -20 -10 -5 Gs Hysteresis BH 2 4 13 Gs TMR1341G Parameter Symbol Min. Typ. Max. Unit Operate point BOPS 25 34 37 Gs BOPN -37 -34 -25 Gs Release point BRPS - 30 - Gs BRPN - -30 - Gs Hysteresis BH - 4 - Gs TMR1342G Parameter Symbol Min. Typ. Max. Unit Operate point BOPS - 42 - Gs BOPN - -42 - Gs Release point BRPS - 37 - Gs BRPN - -37 - Gs Hysteresis BH - 5 - Gs TMR1343G Parameter Symbol Min. Typ. Max. Unit Operate point BOPS - 50 - Gs BOPN - -50 - Gs Release point BRPS - 45 - Gs BRPN - -45 - Gs Hysteresis BH - 5 - Gs TMR1345G Parameter Symbol Min. Typ. Max. Unit Operate point BOPS - 72 - Gs BOPN - -72 - Gs Release point BRPS - 63 - Gs BRPN - -63 - Gs Hysteresis BH - 9 - Gs MultiDimension Technology Co., Ltd. http://www.dowaytech.com/en/ TMR134x MicroAmpere High Frequency Response Omnipolar Magnetic Switch Sensor

Figure 10. Switch points versus supply voltage (TA=25°C) Figure 11. Switch points versus supply voltage (TA=25°C) MultiDimension Technology Co., Ltd.

Figure 17. Switch points versus temperature (VCC = 3 V) Figure 18. Switch points versus temperature (VCC = 3 V) MultiDimension Technology Co., Ltd.

Figure 21. Package outline of SOT23-3 (unit: mm) MultiDimension Technology Co., Ltd.

Figure 22. Package outline of LGA3L (unit: mm) MultiDimension Technology Co., Ltd.

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