TLV4906L

TLV4906L Value Optimized Hall Effect Switch for Industrial and Consumer ApplicationsHigh Precision Hall Effect Switch About this document Overview The TLV4906L is a high precision Hall Effect Switch with highly accurate switching thresholds for ambient operating temperatures up to 85°C. Features • 2.7 V to 18 V supply voltage operation. • Operation from unregulated power supply. • High sensitivity and high stability of the magnetic switching points. • High resistance to mechanical stress by active error compensation. • Reverse battery protection (-18 V). • Superior temperature stability. • Low jitter (typically 1 µs). • High ESD performance (± 4 kV HBM). • Digital output signal (open-drain). • Not suitable for automotive applications Target applications The TLV4906L is ideally suited for all industrial and consumer applications that require a high precision switching thresholds for position sensing. It can be used for example for: security systems, alignment control, push buttons, keyboards, key switches, machine tools, etc. Product name Product type Ordering code Package TLV4906L Hall Effect Switch SP000604324 PG-SSO-3-2 Datasheet www.infineon.com Please read the Important Notice and Warnings at the end of this document Rev. 1.2 2020-08 TLV4906L Value Optimized Hall Effect Switch for Industrial and Consumer ApplicationsHigh Precision Hall Effect Switch Table of contents Table of contents About this document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1 1.1 1.2 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.3 1.4 1.5 1.6 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Operating modes and states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Functional block description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 2.1 2.2 2.3 2.4 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Operating range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3 3.1 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 TLV4906L Package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Datasheet 2 Rev. 1.2 2020-08 TLV4906L Value Optimized Hall Effect Switch for Industrial and Consumer ApplicationsHigh Precision Hall Effect Switch 1 Functional description 1 Functional description 1.1 General Precise magnetic switching thresholds and high temperature stability are achieved by active compensation circuits and chopper techniques on chip. Offset voltages generated by temperature-induced stress or overmolding are canceled so that high accuracy is achieved. The IC has an open collector output stage with 20 mA current sink capability. A wide operating voltage range from 2.7 V to 18 V with reverse polarity protection down to -18 V makes the TLV4906L suitable for a wide range of applications. A magnetic south pole with a field strength above Bop turns the output transistor on (output voltage low) and for a magnetic field below Brp the output transistor is switched off (output voltage high). 1.2 Pin configuration Center of Sensitive Area 2.08 ± 0.1 1.35 ± 0.1 1 2 3 PG-SSO-3-2 Figure 1 Pin configuration and sensitive area (Top view, figure not to scale) 1.3 Pin description Table 1 Pin Definitions for the PG-SSO-3-2 package Pin No. Name Function 1 VS Supply Voltage 2 GND Ground 3 Q Output Datasheet 3 Rev. 1.2 2020-08 TLV4906L Value Optimized Hall Effect Switch for Industrial and Consumer ApplicationsHigh Precision Hall Effect Switch 1 Functional description 1.4 Block diagram VS Voltage Regulator reverse polarity protected Bias and Compensation Circuits Oscillator and Sequencer Q Ref Amplifier Chopped Hall Probe Low Pass Filter Comparator with Hysteresis Figure 2 TLV4906L Block Diagram 1.5 Operating modes and states GND Field direction and definition Positive magnetic fields correspond to the south pole of the magnet targeting the branded side of the package. N S Branded Side Optional: data matrix code Figure 3 Datasheet Definition of the magnetic field direction 4 Rev. 1.2 2020-08 TLV4906L Value Optimized Hall Effect Switch for Industrial and Consumer ApplicationsHigh Precision Hall Effect Switch 1 Functional description VQ B 0 Brp Bop Figure 4 Output signal 1.6 Functional block description The chopped Hall Effect Switch comprises a Hall probe, a bias generator, compensation circuits, an oscillator and an output transistor. The bias generator provides currents to the Hall probe and the active circuits. Compensation circuits stabilize response of the IC over temperature and reduce the impact of process variations. The Active Error Compensation rejects offsets in the signal path and reduces the impact of mechanical stress in the package caused by molding, soldering and thermal effects. The chopper technique together with the threshold generator and the comparator ensure high accurate magnetic switching points. Datasheet 5 Rev. 1.2 2020-08 TLV4906L Value Optimized Hall Effect Switch for Industrial and Consumer ApplicationsHigh Precision Hall Effect Switch 2.1 Application circuit TLV4906X Q Figure 5 GND VS Q GND 1.2kΩ Specification 4.7nF 2 4.7nF 2 Specification 200Ω VS Application circuit It is recommended to use a resistor of 200 Ω in the supply line for current limitation in the case of an overvoltage pulse. Two capacitors of 4.7 nF enhance the EMC performance. The pull-up of 1.2 kΩ limits the current through the output transistor. 2.2 Absolute maximum ratings Stress above the maximum values listed in this section may cause permanent damage to the device. Exposure to absolute maximum rating conditions for extended periods may affect the reliability of the device. Exceeding only one of these values may cause irreversible damage to the device. Table 2 Absolute maximum ratings Parameter Symbol Values Min. Unit Typ. Max. Maximum Ambient Temperature TA -40 – 125 °C Maximum Junction Temperature TJ -40 – 150 °C Supply Voltage VS -18 – 18 V Supply current through protection device IS -50 – 50 mA Output Voltage VOUT -0.7 – 18 V Storage Temperature TS -40 – 150 °C Magnetic flux density B – – unlimit mT ed – – 4 ESD Robustness HBM: 1.5 kΩ, VESD,HBM(1) 100 pF (1) Note/Test Condition kV According to EIA/JESD22-A114-E Datasheet 6 Rev. 1.2 2020-08 TLV4906L Value Optimized Hall Effect Switch for Industrial and Consumer ApplicationsHigh Precision Hall Effect Switch 2 Specification 2.3 Operating range The following operating conditions must not be exceeded in order to ensure correct operation of the TLV4906L. All parameters specified in the following sections refer to these operating conditions unless otherwise mentioned. Table 3 Parameter Operating range Symbol Values Min. Typ. Unit Max. Supply Voltage VS 2.7 – 18 V Output Voltage VQ -0.7 – 18 V Output Current IQ 0 – 20 mA Maximum Ambient Temperature TA -40 – 85 °C Datasheet 7 Note/Test Condition Rev. 1.2 2020-08 TLV4906L Value Optimized Hall Effect Switch for Industrial and Consumer ApplicationsHigh Precision Hall Effect Switch 2 Specification 2.4 Electrical characteristics Product characteristics include the spread of values guaranteed within the specified voltage and ambient temperature range. typical characteristics are the median of the production (at VS = 12 V and TA = 25°C). Table 4 Electrical characteristics Parameter Symbol Values Min. Typ. Unit Note or Test Condition Max. Supply Current IS 2 4 6 mA VS = 2.7 V … 18 V Reverse Current ISR 0 0.2 1 mA VS = -18 V Output Saturation Voltage VQSAT – 0.3 0.6 V IQ = 20 mA Output leakage current IQLEAK – 0.05 10 µA VQ = 18 V Output fall time(1) tf – 0.02 1 µs Output rise time(1) tr – 0.4 1 µs RL = 1.2 kΩ, CL = 50 pF Chopper frequency fOSC – 320 – kHz Switching frequency fSW 0 – 15(2) kHz Delay time(3) td – 13 – µs Output jitter(4) tQJ – 1 – µsRMS Typical value for a 1 kHz square wave signal Power-on Time(5) tPON – 13 – µs VS > 2.7 V Thermal Resistance junction to ambient(6) RthJA – – 190 K/W TLV4906L (1) (2) (3) (4) (5) (6) See Figure 6 To operate the sensor at maximum switching frequency, the value of the magnetic signal amplitude must be 1.4 times higher than the static fields. This is due to the -3 dB corner frequency of the low pass filter in the signal path. Systematic delay between magnetic threshold reached and output. Jitter is the unpredictable deviation of the output switching delay. Time from applying VS > 2.7 V to the sensor until the output state is valid. Relationship between junction and ambient temperature: TJ = Tamb + Rthja . (VS . IS + VQS . IQ). Datasheet 8 Rev. 1.2 2020-08 TLV4906L Value Optimized Hall Effect Switch for Industrial and Consumer ApplicationsHigh Precision Hall Effect Switch 2 Specification BOP Applied Magnetic Field BRP td VQ td tf tr 90% 10% Figure 6 Timing diagram Table 5 Magnetic characteristics(1) Parameter Symbol Values Min. Unit Typ. Max. Note/Test Condition Operate point BOP 6.2 10.0 13.9 mT Release point BRP 4.7 8.5 12.3 mT Hysteresis BHYS 0.7 1.5 3.0 mT Temperature compensation of magnetic thresholds TC – -350 – ppm/° C Repeatability of magnetic thresholds(3) BREP is equivalent to the noise constant. BREP – 20 – µTRMS typical value for ΔΒ/Δt > 12 mT/ms (1) (2) (3) (2) Over all operating conditions. At 25°C. Datasheet 9 Rev. 1.2 2020-08 TLV4906L Value Optimized Hall Effect Switch for Industrial and Consumer ApplicationsHigh Precision Hall Effect Switch 3 Package information 3 Package information 3.1 TLV4906L Package outline VB1 yww S d optional: data matrix code Year (y) = 0...9 Calendar Week (ww) = 01...52 Branded Side Hall-Probe d : Distance chip to upper side of IC PG-SSO-3-2 : 0.57 ±0.8 mm Figure 7 Datasheet Marking of the TLV4906L and distance of the chip to the upper side 10 Rev. 1.2 2020-08 TLV4906L Value Optimized Hall Effect Switch for Industrial and Consumer ApplicationsHigh Precision Hall Effect Switch 3 Package information 0.8 ±0.1 x 45° 0.2 2 A 1.52 ±0.05 1 MAX.1) 7° 3 ±0.06 1.9 MAX. 0.35 ±0.1 x 45° 4.06 ±0.08 3.29 ±0.08 4.16 ±0.05 (0.25) 0.15 MAX. 7° (0.79) 0.6 MAX. 0.2 +0.1 0.4 ±0.05 1.27±0.25 1 2 3 1.27±0.25 18 ±0.5 6 ±0.5 1-1 38 MAX. 9 +0.75 -0.5 23.8 ±0.5 12.7 ±1 A + Adhesive Tape Tape 6.35 ±0.4 1) No solder function area Figure 8 Datasheet 4 ±0.3 12.7 ±0.3 Total tolerance at 10 pitches ±1 0.25 -0.15 0.39 ±0.1 GPO05358 PG-SSO-3-2 Package outline 11 Rev. 1.2 2020-08 TLV4906L Value Optimized Hall Effect Switch for Industrial and Consumer ApplicationsHigh Precision Hall Effect Switch 4 Revision history 4 Revision history Revision History Page Subjects (major changes since last revision) Revision History: 2020-08, Rev. 1.2 Previous Revisions: 1.1 9 Datasheet Edited figure 7 (optional: data matrix code) 12 Rev. 1.2 2020-08 Trademarks All referenced product or service names and trademarks are the property of their respective owners. Edition 2020-08 Published by Infineon Technologies AG 81726 Munich, Germany © 2020 Infineon Technologies AG All Rights Reserved. Do you have a question about any aspect of this document? Email: erratum@infineon.com Document reference IFX-mok1599123596500 IMPORTANT NOTICE The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics (“Beschaffenheitsgarantie”) . With respect to any examples, hints or any typical values stated herein and/or any information regarding the application of the product, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation warranties of non-infringement of intellectual property rights of any third party. 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