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sense and control datasheet rev. 1.1, 2010-08-02 TLV4906L value optimized hall effect switch for industrial and consumer applications
edition 2010-08-02 published by infineon technologies ag 81726 munich, germany ? 2010 infineon technologies ag all rights reserved. legal disclaimer the information given in this docu ment shall in no event be regarded as a guarantee of conditions or characteristics. with respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, infine on technologies hereby disclaims any and all warranties and liabilities of any kind, including witho ut limitation, warranties of non-infrin gement of intellectua l property rights of any third party. information for further information on technology, delivery terms and conditions and prices, please contact the nearest infineon technologies office ( www.infineon.com ). warnings due to technical requirements, components may contain dangerous substances. for information on the types in question, please contact the nearest infineon technologies office. infineon technologies compon ents may be used in life-su pport devices or systems only with the express written approval of infineon technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system or to affect the safe ty or effectiveness of that de vice or system. life support devices or systems are intended to be implanted in the hu man body or to support an d/or maintain and sustain and/or protect human life. if they fail, it is reasonable to assume that the health of the user or other persons may be endangered.
TLV4906L datasheet 3 rev. 1.1, 2010-08-02 value optimized hall effect switch for industrial and consumer applications revision history: 2010-08-02, rev. 1.1 previous revisions: 1.0 page subjects (major cha nges since last revision) all tlv4906k removed we listen to your comments any information within this do cument that you feel is wro ng, unclear or missing at all? your feedback will help us to continuous ly improve the qualit y of this document. please send your proposal (including a reference to this document) to: sensors@infineon.com
TLV4906L table of contents datasheet 4 rev. 1.1, 2010-08-02 table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 list of figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 list of tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1 product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.1 overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.2 features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.3 target applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2 functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.1 general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.2 pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.3 pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.4 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.5 operating modes and states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.6 functional block description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3 specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.1 application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.2 absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.3 operating range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 3.4 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.1 TLV4906L package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 table of contents
TLV4906L list of figures datasheet 5 rev. 1.1, 2010-08-02 figure 1 pin configuration and sensitive area (top view, figure not to scale) . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 2 TLV4906L block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 figure 3 definition of the magnetic field direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 figure 4 output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 figure 5 application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 figure 6 timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 figure 7 marking of the TLV4906L and distance of the chip to th e upper side. . . . . . . . . . . . . . . . . . . . . . . 14 figure 8 pg-sso-3-2 package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 list of figures
TLV4906L list of tables datasheet 6 rev. 1.1, 2010-08-02 table 1 pin definitions for the pg-sso-3-2 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 table 2 absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 table 3 operating range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 table 4 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 table 5 magnetic characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 list of tables
product name product type order code package TLV4906L hall effect switch sp000604324 pg-sso-3-2 hall effect switch TLV4906L datasheet 7 rev. 1.1, 2010-08-02 1 product description 1.1 overview the TLV4906L is a high precision hall effect switch with highly accurate switching thresholds for ambient o perating temperatures up to 85c. 1.2 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 st ress by active error compensation. ? reverse battery protection (-18 v). ? superior temper ature stability. ? low jitter (typically 1 s). ? high esd performance ( 4 kv hbm). ? digital output signal (open-drain). ? not suitable for automotive applications 1.3 target applications the TLV4906L is ideally suited for all industrial and consum er applications that require a high precision switching thresholds for position sensing. it can be used for exampl e for: security systems, alig nment control, push buttons, keyboards, key switches, machine tools, etc.
TLV4906L functional description datasheet 8 rev. 1.1, 2010-08-02 2 functional description 2.1 general precise magnetic switching thresholds and high temperature stability are achiev ed by active compensation circuits and chopper techniques on chip. offset voltages generat ed by temperature-induced stress or overmolding are canceled so that high accuracy is ac hieved. the ic has an open collector ou tput stage with 20 ma current sink capability. a wide operating vo ltage 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 applicatio ns. a magnetic south pole with a field strength above b op turns the output transistor on (output voltage low) and for a magnetic field below b rp the output transisto r is switched off (output voltage high). 2.2 pin configuration figure 1 pin configuration and sensitive area (top view, figure not to scale) center of sensitive area 3 2 1 pg-sso-3-2 0.1 1.35 0.1 2.08
TLV4906L functional description datasheet 9 rev. 1.1, 2010-08-02 2.3 pin description 2.4 block diagram figure 2 TLV4906L block diagram table 1 pin definitions for the pg-sso-3-2 package pin no. name function 1v s supply voltage 2 gnd ground 3 q output ref chopped hall probe v s q gnd amplifier low pass filter comparator with hysteresis voltage regulator reverse polarity protected oscillator and sequencer bias and compensation circuits
TLV4906L functional description datasheet 10 rev. 1.1, 2010-08-02 2.5 operating modes and states field direction and definition positive magnetic fields correspond to the south pole of the magnet targeting the branded side of the package. figure 3 definition of the magnetic field direction figure 4 output signal 2.6 functional block description the chopped hall effect switch compri ses a hall probe, a bias gen erator, compensation circ uits, 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 a nd reduce the impact of process variations. the active error compensation rejects of fsets 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 generat or and the comparator ensure high accurate magnetic switching points. n s branded side v q b op b rp 0 b
TLV4906L specification datasheet 11 rev. 1.1, 2010-08-02 3 specification 3.1 application circuit figure 5 application circuit it is recommended to use a resistor of 200 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 k limits the current through the output transistor. 3.2 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 fo r extended periods may affe ct 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 unit note / test condition min. typ. max. maximum ambient temperature t a - 40 ? 125 c maximum junction temperature t j - 40 ? 150 c supply voltage v s - 18 ? 18 v supply current through protection device i s -50 ? 50 ma output voltage v out - 0.7 ? 18 v storage temperature t s - 40 ? 150 c magnetic flux density b ? ? unlimited mt esd robustness hbm: 1.5 k , 100 pf v esd,hbm 1) 1) according to eia/jesd22-a114-e ??4 kv v s q gnd tlv4906x 200 1.2k v s gnd 4.7nf 4. 7nf q
TLV4906L specification datasheet 12 rev. 1.1, 2010-08-02 3.3 operating range the following operating conditions must not be exceeded in order to ensure correct operation of the TLV4906L. all parameters specified in the followi ng sections refer to these operating conditions unless otherwise mentioned. 3.4 electrical characteristics product characteristics include the spread of values guaranteed withi n the specified voltage and ambient temperature range. typical characteristics are the median of the production (at v s =12v and t a =25c). table 3 operating range parameter symbol values unit note / test condition min. typ. max. supply voltage v s 2.7 ? 18 v output voltage v q -0.7 ? 18 v output current i q 0?20 ma maximum ambient temperature t a -40 ? 85 c table 4 electrical characteristics parameter symbol values unit note / test condition min. typ. max. supply current i s 246 mav s =2.7 v...18 v reverse current i sr 00.21 mav s =-18 v output saturation voltage v qsat ?0.30.6 v i q =20 ma output leakage current i qleak ?0.0510 a v q =18 v output fall time 1) 1) see figure 6 t f ?0.021 s r l =1.2k , c l =50 pf output rise time 1) t r ?0.41 s chopper frequency f osc ?320? khz switching frequency f sw 0?15 2) 2) to operate the sensor at maximum switching frequency, t he value of the magnetic signal amplitude must be 1.4 times higher than the static fields. this is due to the -3 db co rner frequency of the low pass filter in the signal path. khz delay time 3) 3) systematic delay between magnetic threshold reached and output. t d ?13? s output jitter 4) 4) jitter is the unpredictable devia tion of the output switching delay. t qj ?1? s rms typical value for a 1 khz square wave signal power-on time 5) 5) time from applying v s . > 2.7 v to the sensor until the output state is valid. t pon ?13? s v s > 2.7 v thermal resistance junction to ambient 6) 6) relationship between junction and ambient temperature: t j =t amb + r thja . (v s . i s + v qs . i q ). r thja ? ? 190 k/w TLV4906L
TLV4906L specification datasheet 13 rev. 1.1, 2010-08-02 figure 6timing diagram table 5 magnetic characteristics 1) 1) over all operating conditions. parameter symbol values unit note / test condition min. typ. max. operate point b op 6.2 10.0 13.9 mt release point b rp 4.7 8.5 12.3 mt hysteresis b hys 0.7 1.5 3.0 mt 2) 2) at 25c. temperature compensation of magnetic thresholds tc ?-350? ppm/c repeatability of magnetic thresholds 3) 3) b rep is equivalent to the noise constant. b rep ?20? t rms typical value for ?/ t > 12mt/ms applied magnetic field 90% 10% v q t f t d t r t d b op b rp
TLV4906L package information datasheet 14 rev. 1.1, 2010-08-02 4 package information 4.1 TLV4906L package outline figure 7 marking of the TLV4906L and distance of the chip to the upper side year (y) = 0...9 calendar week (ww) = 01 ...52 yww vb1 s
TLV4906L package information datasheet 15 rev. 1.1, 2010-08-02 figure 8 pg-sso-3-2 package outline total tolerance at 10 pitches ? 1 ) no solder function area ?.3 ?.4 6.35 12.7 12.7 ? ?.5 -0.5 +0.75 4 ?.3 9 gpo0535 8 -0.15 ?.1 tape adhesiv e tape 0.25 0.39 ?.5 a 18 6 23.8 ?.5 38 max. -1 1 13 2 1.27 ?.25 1.27 ?.25 0.6 max. 0.4 ?.05 1) 1 max. 0.15 max. 1.9 max. 4.06 ?.08 4.16 ?.05 ?.08 3.29 3 ?.06 0.2 (0.25) x 45? 0.8 ?.1 7? x 45? ?.1 0.35 0.2 +0.1 7? (0.79) a 2 1.52 ?.05
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