TMR1222 MULTIDIMENSION | Alldatasheet
Document overview
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Technical content
Description
The TMR1222/TMR1228 series magnetic switches integrated the tunneling magnetoresistance (TMR) magnetic sensor and CMOS 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 TMR1222/1228 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, the TMR1222/TMR1228 can provide true continuous detection of magnetic field signals, avoiding sampling errors from the traditional time-sharing power supply mode. Features and benefits
- Tunneling magnetoresistance (TMR) technology
- Low power consumption: supply current 1.5 μA
- High frequency response: typ. 1 kHz
- Bipolar latching operation
- Wide range supply voltages: 1.8 V to 5.5 V
- CMOS 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
- Linear and rotation direction sensing MicroAmpere High Frequency Response Dual-Axis Bipolar Magnetic Switch Sensor TMR1222 / TMR1228 DFN8L VOUT H VOL VOH BRP BOP Datasheet MultiDimension Technology Co., Ltd. http://www.dowaytech.com/en/ Version 2.0.1
Point Package Packing Form TMR1222D 1.5 μA 0 to 1 kHz -40 °C to 125 °C 17 Gs -17 Gs DFN8L Tape & Reel TMR1228D 1.5 μA 0 to 1 kHz -40 °C to 125 °C 5 Gs -5 Gs DFN8L 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/ TMR1222 / TMR1228 Microampere High Frequency Response Dual-Axis Bipolar Magnetic Switch Sensor
- Switching Characteristics
the package as shown by the arrows in Figure 2. Figure 2. Sensing direction the difference between BOP and BRP. Figure 3. Switching characteristics level after processing by the circuit as shown in Figure 1. Figure 1. Block diagram Figure 4. Pin configuration
1 VOUTX X axis output
2 VCCX X axis power supply
3 NC NC
4 GNDY Y axis ground
5 VOUTY Y axis output
6 VCCY Y axis power supply
7 NC NC
8 GNDX X axis ground
MultiDimension Technology Co., Ltd.
- Absolute Maximum Ratings Parameters Symbol Min. Max. Unit Applicable Part Number Supply voltage VCC -0.3 7 V All parts Output current ISINK and ISOURCE - 9 mA All parts Magnetic flux density B - 4000 Gs All parts ESD performance (HBM) VESD - 4 kV All parts Operating ambient temperature TA -40 125 °C All parts Storage ambient temperature TSTG -50 150 °C All parts 1) ISINK is the current flowing through the pin of switch, when the output is turned on, and I SOURCE is the current flowing through the pin of the switch, when the output is turned off. 5. Electrical Specifications VCC = 3.0 V, TA = 25 °C, a 0.1 μF capacitor is connected between VCC and GND unless specified otherwise Parameter Symbol Condition Min. Typ. Max. Unit Applicable Part Number Supply voltage VCC operating 1.8 3.0 5.5 V All parts Output high voltage VOH RP status VCC-0.3 - VCC V All parts Output low voltage VOL OP status 0 - 0.2 V All parts Supply current ICC OP and RP status 0.5 1.5 2 μA All parts Response frequency F - 0 to 1000 Hz All parts 2) ICC defines the single axis mode current consumption. Dual axis mode current consumption is 2X single axis mode consumption. 6. Magnetic Specifications VCC = 3.0 V, TA = 25 °C, a 0.1 μF capacitor is connected between VCC and GND unless specified otherwise TMR1222 Parameter Symbol Min. Typ. Max. Unit Operate point BOPX, BOPY 10 17 25 Gs Release point BRPX, BRPY -25 -17 -10 Gs Hysteresis BHX, BHY 20 - 50 Gs TMR1228 Parameter Symbol Min. Typ. Max. Unit Operate point BOPX, BOPY 2 5 9 Gs Release point BRPX, BRPY -9 -5 -2 Gs Hysteresis BHX, BHY 4 - 18 Gs MultiDimension Technology Co., Ltd. http://www.dowaytech.com/en/ TMR1222 / TMR1228 Microampere High Frequency Response Dual-Axis Bipolar Magnetic Switch Sensor
Figure 15. Package outline of DFN8L (unit: mm) MultiDimension Technology Co., Ltd.
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