Edition June 10, 1998 6251-456-1DS HAL114 Unipolar Hall Switch IC # MICRONAS INTERMETALLHAL 114 Unipolar Hall Switch IC in CMOS technology Introduction The HAL114 is a Hall switch produced in CMOS technol- ogy. The sensor includes a temperature-compensated Hall plate, a Schmitt trigger, and an epen-drain output transistor (see Fig. 2). The HAL114 has a unipolar behavior: The output turns low with a magnetic south pole on the branded side of the package (see figures 3 and 4). The output turns high if the magnetic field is removed. The output signal re- mains high if the magnetic north pole approaches the branded side of the package. The sensor is designed for industrial and automotive ap- plications and operates with supply voltages from 4.5 V to 24 V in the ambient temperature range from40C up to 150 C. The HAL114 is available in a SMD-package (SOT-89A) and in a leaded version (TO-92UA). Features: operates from 4.5 V to 24 V supply voltage overvoltage protection reverse-voltage protection at Vop-pin short-circuit protected open-drain output by thermal shutdown operates with magnetic fields trom DC to 20 kHz stable magnetic switching points over a wide supply voliage range the decrease of magnetic flux density caused by rising temperature in the sensor system is compensated by a built-in negative temperature coefficient of the mag- netic switching points ideal sensor for contactless switches and speed mea- surement in hostile automotive and industrial environ- ments Specifications switching type: unipolar output turns low with magnetic south pole on branded side of package output turns high if magnetic field is removed Marking Code HAL 11480, WAL 114UA 114A 114E 114 Operating Junction Temperature Range (T,) A: Ty = 40 C to +170 C E: Ty = 40 C to +100 C C: Ty = 0C to +100 C The relationship between ambient temperature (Ta) and junction temperature (TJ) is explained on page 8. Hall Sensor Package Codes HAL XXXPA-T # ss Temperature Range: A, E, or C Package: SO tor SOT-89A, UA for TO-92UA Type: 114 Example: HAL114UA-E Type: 114 Package: TO-92UA Temperature Range: T, = 40 C to +100 C Hall sensors are available in a wide variety of packaging versions and quantities. For more detailed information, please refer to the brochure: Ordering Codes for Hall Sensors. Solderability Package SOT-89A: according to IEC68-2-58 Package TO-92UA: according to IEC68-2-20 2 GND Fig. 1: Pin configuration MICRONAS INTERMETALLHAL 114 Functional Description The HAL114 is a CMOS integrated circuit with a switch- ing output in response to magnetic fields. It processes the Hall Voltage internally: The Hall Voltage is propor- tional to the magnetic flux component Bz orthegonal to an integrated Hall Plate, in case an electric currentis im- posed to the plate. The HAL114 compares the Hall Volt- age with a predefined threshold and generates the out- put signal dependent of the direction of the magnetic field. A special circuit compensates for the temperature dependent effects of the IC, as well as the external mag- net. A built-in hysteresis eliminates possible oscillations of the output signal adjacent to its switching point so that output bouncing is avoided. The output is short-circuit protected by limiting high currents and by sensing ex- cess temperature. Shunt protection devices clamp voltage peaks at the Output-Pin and Vpp-Pin together with external series resistors. Reverse current is limited at the Vop-Pin by an internal series resistor up to -15 V. No external reverse protection diode is needed at the Vpp-Pin for values ranging from 0 V to -15 V. HAL114 Yop | [Reverse Temperature , Short Circuit & | win F Benmoot inns | [ere 1 ervorlage Bias Protection | Protection Hall Plate Comparator OUT > { Output | o 3 GND | | | o Fig. 2: HAL114 block diagram Dimensions of Sensitive Area 0.4 mm x 0.2 mm Positions of Sensitive Area _SoT-98 O-90UA x=0+0.2 x=01402 y =0.98+02 y=10+0.2 x is referenced to the center of the package Outline Dimensions 4.55401 ___! ta sensilive area a 1.7 te| le [tt fp 6: | | wow t top view 1.5340.05 , branded side 0.05+0.05 SPGS7001-6-A/2E Fig. 3: Plastic Small Outline Transistor Package (SOT-89A) Weight approximately 0.04 g Dimensions in mm 1.50.05 4.06+0.1 a . sensitive area 2.03 a3 [" 3.05204 048 0.55 rt 036 042 \1.27)1.27 | 64! ee branded side ae 45 08 SPGS7002-6-ANE Fig. 4: Plastic Transistor Single Outline Package (TO-92UA) Weight approximately 0.12 g Dimensions in mm MICRONAS INTERMETALLHAL 114 Absolute Maximum Ratings Supply Voltage Vp Test Voltage for Supply 1 24?) - V -Ipp Reverse Supply Current 1 - 507) mA lppz Supply Current through 1 200) 200) mA Protection Device Vo Output Voltage 3 -0.3 281) V lo Continuous Output On Current 3 - 30 mA lomax Peak Output On Current 3 - 2509) mA loz Output Current through 3 2003) 2009) mA Protection Device Ts Storage Temperature Range -65 150 C Ty Junction Temperature Range 40 150 C 40 170%) 1) as long as Tymax is not exceeded 2) with a 220 series resistance at pin 1 corresponding to test circuit 1 )t<2ms 4) t<1000h Stresses beyond those listed in the Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only. Functional operation of the device at these or any other conditions beyond those indicated in the Recommended Operating Conditions/Characteristics of this specification is not implied. Exposure to absolute maxi- mum ratings conditions for extended periods may affect device reliability. Recommended Operating Conditions Supply Voltage lo Continuous Output On Current 3 0 - 20 mA Ry Series Resistor 1 2/0 Q Electrical Characteristics at T) =40 C to+170C, Vpp=4.5 V to 24 V, as not otherwise specified in Test Conditions Typical Characteristics for Ty = 25 C and Vpp = 12 V VoL Output Voltage over 3 - 120 400 m lol = 12.5 mA Temperature Range VoL Output Voltage over 3 - 190 500 mv lo. = 20 mA Temperature Range lou Output Leakage Current 3 - - 1 pA B < Bor, Vou = 24 V, Ty = 25 C 4 MICRONAS INTERMETALLHAL 114 Electrical Cha racteristics, continued lou Output Leakage Current over 3 - - 10 pA B < Bor Temperature Range Vou = 24 V, Ty < 150 C Ipp Supply Current 1 6 8.2 11 mA Ty= 25C Ipp Supply Current over 1 3.9 8.2 12 mA Temperature Range ten(o) Enable Time of Output 3 - 6 10 ps Vpop =12V after Setting of Vpp t Output Rise Time 3 - 85 400 ns Vpp = 12 V, RL = 820 Ohm, CL = 20 pF tf Output Fall Time 3 - 60 400 ns Vpp = 12 V, RL = 820 Ohm, CL = 20 pF RihJdSB Thermal Resistance Junction to - 150 200 KAW Fiberglass Substrate case Substrate Backside pad size see Fig. 6 SOT-89A RithJA Thernal Resistance - 150 200 KAW Leads at ambient tempera- case Junction to Soldering Point ture at a distance of 2 mm TO-92UA from case Magnetic Characteristics at T) = 40 C to +170 C, Vpp = 4.5 V to 24 V, Typical Characteristics for Vpp = 12 V Magnetic flux density values of switching points. Positive flux density values reter to the magnetic south pole at the branded side of the package. On point Bon 75 | 215 | 360 7.0 21.3 34.0 6.3 196 | 31.5 6.0 19.2 | 31.0 | mT Off point Borr 4.3 174 | 33.2 4.0 17.6 | 31.2 3.6 16.1 28.9 3.6 158 | 288 | mT Hysteresis Buys 2.8 44 5.0 2.8 3.7 4.5 2.6 3.5 4.0 2.2 3.4 4.0 | mT Output Voltage 5.0 O Borr min Borr Bon Bon max Buys _ Fig. 5: Definition of switching points and hysteresis 4.0 Fig. 6: Recommended pad size SOT-89A Dimensions in mm MICRONAS INTERMETALLHAL 114 mT mT 30 30 Von = 12V Bon Bon 55 BOFF 95 Borr Bon 20 ees oe | 20 mi Trrcanethansasaseneal nnn tenes [oo eli benrnee 15 Borr 15 - Ta = -40 C 10 10 } at TA = 25C wt Ta = 150 C 5 0 0 50 0 50 0= 100. 150) 200 C 3 4 5 6 7 BV * Ty * Yop Fig. 7: Typical magnetic switching points Fig. 9: Typical magnetic switching points versus temperature versus supply voltage mT mA 30 15 Bon BorF 95 10 R Ipp 20 toh 5 : 15 0 i Ty = 40C 10 5 - Ta= 25C F snwenfen Ty = 150 C | 5 -10 0 0 5 10 15 20 2 g30V -15-10-5 0 5 * Von Fig. 8: Typical magnetic switching points versus supply voltage 10 15 20 2 30V * Vbp Fig. 10: Typical supply current versus supply voltage MICRONAS INTERMETALLHAL 114 Ta Fig. 12: Typical supply current versus temperature mA mv 12 500 lo = 12.5 mA 19 Ta = 40C lbp Voi 400 Ta = 25C 8 300 }4 Ta = 150C 6 - Ta = 150 C 200 4 Ta = 25C __ 5 100 1 LS Ta=40 C 9 Q Q 8 BY 9 5 10 1 20 2 30V _ Vop _* Vpp Fig. 11: Typical supply current Fig. 13: Typical output low voltage versus supply voltage versus supply voltage mA mV 12 500 I Vpp = 12 10 lbp ~ Vo. 400 lo= 20 ma LZ Tl Vop=4.5V Vppb =24V PT 300 . Ne A 200 7 ra 4 eA a S lo =12.5mA 100 2 Le 9 Q -50 0 50 100 150 200C 50 9 50 0=6 100 150) 200C Ta Fig. 14: Typical output low voltage versus temperature MICRONAS INTERMETALLHAL 114 pA 10 10! [ lou Vou = 24 V y Vop=5V 10 / 107 V 10 / of a tL -50 0 50 100 150 200 C * Ta Fig. 15: Typical output leakage current versus temperature Application Note For electromagnetic immunity, it is recommended to ap- ply a 330 pF minimum capacitor between Vopp (pin 1) and Ground (pin 2). For applications requiring robustness to conducted cis- turbances (transients), a 220 series resistor to pin 1 and a 4.7 nF capacitor between Vpp (pin1) and Ground (pin 2) is recommended. The series resistor and the ca- pacitor should be placed as close as possible to the IC. MICRONAS INTERMETALL GmbH Hans-Bunte-Strasse 19 D-79108 Freiburg (Germany) P.O. Box 840 D-79008 Freiburg (Germany) Tel. +49-761-517-0 Fax +49-761-517-2174 E-mail: docservice@intermetall.de Internet: http://www. intermetall.de Printed in Germany Order No. 6251-456-1DS Vv 220 2 Fig. 16: Recommended application circuit Ambient Temperature Due to the internal power dissipation, the temperature on the silicon chip (junction temperature Ty) is higher than the temperature outside the package (ambient tem- perature Ta). Ty = Tag + AT At static conditions, the fellowing equations are valid: ter SOT-89A: AT = Ipp * Vop * Riruse Ter TO-92UA: AT = Ipp * Vpp * Rihua For typical values, use the typical parameters. For worst case calculation, use the max. parameters for Ipp and Rip, and the max. value for Vpp from the application. Data Sheet History 1. Final data sheet: HAL114 Unipolar Hall Switch IC, June 10, 1998, 6251-456-1DS. First release of the final data sheet. All information and data contained in this data sheet are with- out any commitment, are not to be considered as an offer for conclusion of a contract nor shall they be construed as to create any liability. Any new issue of this data sheet invalidates previous issues. Product availability and delivery dates are ex- clusively subject to our respective order confirmation form; the same applies to orders based on development samples deliv- ered. By this publication, MICRONAS INTERMETALL GmbH does not assume responsibility for patent infringements or other rights of third parties which may result from its use. Reprinting is generally permitted, indicating the source. How- ever, our prior consent must be obtained in all cases. MICRONAS INTERMETALL