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sense & control datasheet rev.1.0, 2010-02-23 TLE4916-1K low power automotive hall switch
edition 2010-02-23 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.
datasheet 1 rev.1.0, 2010-02-23 TLE4916-1K TLE4916-1K low-power automotive hall switch revision history: 2010-02-23, rev.1.0 previous version: page subjects (major cha nges since last revision) 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
TLE4916-1K table of contents datasheet 2 rev.1.0, 2010-02-23 1 product description 3 1.1 overview 3 1.2 features 3 1.3 target applications 3 2 functional description 4 2.1 general 4 2.2 pin configuration (top view) 4 2.3 pin description 4 2.4 block diagram 5 2.5 functional block description 5 3 specification 7 3.1 application circuit 7 3.2 absolute maximum ratings 8 3.3 operating range 8 3.4 electrical and magnetic characteristics 9 4 package information 11 4.1 package outline sc59 11 4.2 footprint 12 4.3 distance between chip and package 13 4.4 package marking 13 table of contents
product name product type ordering code package TLE4916-1K low power hall switch sp000649954 pg-sc59-3-4 low-power automotive hall switch TLE4916-1K TLE4916-1K datasheet 3 rev.1.0, 2010-02-23 1 product description 1.1 overview the TLE4916-1K is an integrated hall-effect sensor in a smd package designed specifically to meet the requirements of low-power automotive and industrial applications with oper ating voltages of 2.4v - 5.0v. a chopped measurem ent principle provides high stability switching thresholds for operating temperatures between -40c and 125c. 1.2 features ? micro power design ? 2.4v to 5.0v operation ? high sensitivity and high stability of the magnetic switching points ? high resistance to mechanical st ress by active er ror compensation ? high esd performance ( 4kv hbm) ? digital output signal ? smd package sc59 (sot23 compatible) ? rohs compliant (pb free package) 1.3 target applications target applications for TLE4916-1K are all automotive and industrial applications wh ich require a low-power hall switch to save power consumpt ion. due to its low average supply current of typical 4a the sensor is ideally suited for battery powered systems or app lications with a stand-by mode. for example, the hall switch can be used to provide a wa ke-up signal for other systems which are in a sleep mode by detecting a change in the magnetic field, thus reducing overall current consumption.
TLE4916-1K functional description datasheet 4 rev.1.0, 2010-02-23 2 functional description 2.1 general the low power hall ic switch is comp rised of a hall probe, bias generator , compensation circuits, oscillator, output latch and a n-channel open drain output transistor. the bias generator provides currents for the hall probe and the active circui ts. compensation circuits stabilize the temperature behavior and reduce influence of technology variations. the active error compensation rejects offsets in signal stages and the influence of mechanical stress to the hall probe caused by molding and soldering processes and ot her thermal stresses in the package. this chopper technique together with the threshold generator and the comparator ensure highly accurate magnetic switching points. very low power consumption is achiev ed with a timing scheme controlled by an oscillator and a sequencer. this circuitry activates the sensor for 50s (typical operating time) sets the output state after sequential questioning of the switch points and latches it with the beginning of the following standby phase (max. 120ms). in the standby phase the average current is typically reduced to 3.5a. because of the long standby time compared to the operating time the overall averaged current is only slightly higher than the standby curr ent. the output transistor can sink up to 1 ma with a maximal saturation voltage v qsat 2.2 pin configuration (top view) figure 1 pin configuration and center of sensitive area 2.3 pin description table 1 pin description pin no. symbol function comment 1v s supply voltage 2 q output 3 gnd ground center of sensitive area 1 0 .15 1.5 0.15 0.8 2 3 sc59
datasheet 5 rev.1.0, 2010-02-23 TLE4916-1K functional description 2.4 block diagram figure 2 functional block diagram 2.5 functional block description the TLE4916-1K is an integrated hall-effect sensor desig ned specifically to meet th e requirements of low-power applications with operating voltages of 2.4v - 5.0v. precise magnetic switching po ints and high temper ature stability are achieved thr ough the unique design of the internal circuit. an onboard clock scheme is used to reduce the average operating current of the ic. during the operating phase the ic co mpares the actual magnetic field dete cted to the inter nally compensated switching points. the output q is switch ed at the end of each operating phase. during the stand-by phase the output stage is latched and the current consum ption of the device reduced to 4a a (typ. value). the ic switching behaviour is designed as a latch, i.e. it can be switched on (q = lo) with the south pole of a magnet and switched off (q = hi) with the north pole. . bias and compensation circuits oscillator and sequencer oscillator and sequencer chopped hall probe v s v s q gnd amplifier comparator with hysteresis active error compensation active error compensation active error compensation active error compensation threshol d generator threshol d generator logic
TLE4916-1K functional description datasheet 6 rev.1.0, 2010-02-23 figure 3timing diagram figure 4 output signal i s t i savg i sstb operating time standby time latch output t op 50 s t stb 70 ms i sopavg v q b op b rp 0 b
datasheet 7 rev.1.0, 2010-02-23 TLE4916-1K specification 3 specification 3.1 application circuit for operating the sensor a pull-up resistor is required. a ceramic bypass capacitor at vs to gnd is recommended. note: the size of the pull-up resistor increases the over all current consumption as additional current is flowing through this resistor. figure 5 application circuit TLE4916-1K gnd q vs r q = 5k c s = 100nf
TLE4916-1K specification datasheet 8 rev.1.0, 2010-02-23 3.2 absolute maximum ratings attention: stresses above the max. values listed here may cause permanent damage to the device. exposure to absolute maximum rating conditions for extended periods may affect device reliability. maximum ratings are absolute ratings; exceeding only one of these values may cause irreversible damage to the integrated circuit. 3.3 operating range the following operating conditions must not be exceeded in order to ensure correct operation of the TLE4916-1K. all parameters specified in the followi ng sections refer to these operating conditions unless otherwise mentioned. table 2 absolute maximum rating parameters parameter symbol limit values unit note / test condition min. max. supply voltage v s -0.3 5.5 v supply current i s -1 2.5 ma output voltage v q -0.3 5.5 v output current i q -1 2 ma junction temperature t j ? ? 125 150 195 c for 5000h (not additive) for 2000h (not additive) for 3 x 1h (additive) magnetic flux density b ? unlimited mt thermal resistance sc59 100 k/w table 3 esd protection 1) 1) human body model (hbm) tests according to: eos/esd a ssociation standard s5.1-1993 and mil. std. 883d method 3015.7 parameter symbol limit values unit note / test condition min. max. esd voltage v esd 4 kv hbm, r = 1.5k , c = 100pf t a = 25c table 4 operating condition parameters parameter symbol values unit note / test condition min. typ. max. supply voltage v s 2.4 2.7 5.0 v output voltage v q -0.3 2.7 5.0 v junction temperature t j -40 125 c
datasheet 9 rev.1.0, 2010-02-23 TLE4916-1K specification 3.4 electrical and magnetic characteristics product characteristics involve the spread of values guaranteed within the specified voltage and ambient temperature range. typical characteristics are the medi an of the production. th e specification listed in table 5 are valid in combination with the application circuit shown in figure 5 unless other condit ions are stated. table 5 general electrical characteristics 1) 1) over operating range, unless otherwise s pecified. typical values correspond to v s = 2.7v and t a = 25c parameter symbol values unit note / test condition min. typ. max. average supply current i savg 1410av s 3.3v -40c t j 125c 1411 v s 5.0v -40c t j 85c 1413 v s 5.0v 85c t j 125c average supply current during operating time i sopavg 0.5 1.1 2.5 ma transient peak supply current during operating time 2) 2) transient peak i sopt occurs on top of i sopavg i sopt ? ? 2.5 ma t < 100ns supply current during stand-by time i sstb 13.59.5av s 3.3v -40c t j 125c 1 3.5 10.5 v s 5.0v -40c t j 85c 1 3.5 12.5 v s 5.0v 85c t j 125c output saturation voltage v qsat ?0.130.4vi q = 1ma output leakage current i qleak ?0.011a output fall time t f ?0.11sr l = 2.7k , c l = 10pf output rise time t r ?0.51sr l = 2.7k , c l = 10pf operating time t op 15 50 93 s stand-by time t stb ?70120ms-40c t j 0c ?70100 0c t j 125c duty cycle t op /t stb ?0.07?%
TLE4916-1K specification datasheet 10 rev.1.0, 2010-02-23 field directio n definition positive magnetic fields are defi ned with the south pole of the magne t to the branded side of package. figure 6 definition of magnetic field direction table 6 magnetic characteristics 1) 1) over operating range, unless otherwise s pecified. typical values correspond to v s = 2.7v and t a = 25c. parameter symbol values unit note / test condition min. typ. max. operating point b op 23.55mt release point b rp -5 -3.5 -2 mt hysteresis b hys 4710mt temperature compensation of magnetic thresholds t c ?-700?ppm/ c branded side n s
datasheet 11 rev.1.0, 2010-02-23 TLE4916-1K package information 4 package information 4.1 package outline sc59 figure 7 sc59 package outline (all dimensions in mm) 3 x 0.4 +0.05 -0.1 m 0.1 0.95 0.95 (0.55) 3 ?.1 +0.2 2.8 -0.1 0.15 max. 1.1 ?.1 0.2 +0. 1 +0.1 -0.05 0.15 0?...8? max. gps09473 0.45 ?.15 +0.15 -0.3 1.6 0.1 m 0.1 3 2 1
TLE4916-1K package information datasheet 12 rev.1.0, 2010-02-23 4.2 footprint figure 8 footprint sc59 reflow soldering wave soldering 0. 8 0. 8 1.2 0.9 1.3 0.9 0.8 0.8 1.2 1.6 1.4 min 1.4 min
datasheet 13 rev.1.0, 2010-02-23 TLE4916-1K package information 4.3 distance between chip and package figure 9 distance between chip and package 4.4 package marking figure 10 marking of TLE4916-1K branded side d: distance chip to upper side of ic d d = 0.56 0.1 mm 06 year (y) = 0... 9 month (m) = 1...9, o-october n - november d - december y m 16 1
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