View TLV4976-1K_2161507.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

sense & control data sheet rev. 1.0, 2010-08-02 TLV4976-1K value optimized hall effect switch with current interface 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.
TLV4976-1K data sheet 3 rev. 1.0, 2010-08-02 value optimized hall effect latches fo r industrial and consumer applications revision history: 2010-08-02, rev. 1.0 previous revisions: 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
TLV4976-1K table of contents data sheet 4 rev. 1.0, 2010-08-02 1 product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.2 features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.3 target applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.1 general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2 pin configuration (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.3 pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.4 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.5 functional block description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3 specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.1 application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.2 absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.3 operating range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.4 electrical and magnetic characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.1 package outline sc59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.2 footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.3 distance between chip and package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.4 package marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 table of contents
product name product type ordering code package TLV4976-1K hall effect switch sp000803730 pg-sc59-3-5 hall effect switch TLV4976-1K data sheet 5 rev. 1.0, 2010-08-02 1 product description 1.1 overview the TLV4976-1K is a high precision unipolar hall switch with a two wire, 6ma/14ma current interface in a smd package. a chopped measurement principle provides high stability s witching thresholds for operating temperatures between -40c and 85c. 1.2 features ? 3.0v to 18v supply voltage operation ? high sensitivity and high stability of the magnetic switching points ? high resistance to mechanical st ress by active er ror compensation ? reverse battery protection (-18v) ? superior temper ature stability ? low jitter (typ. 1s) ? high esd performance ( 4kv hbm) ? digital output signal with current modulation 6 / 14ma ? unipolar version ? smd package sc59 (sot23 compatible), lead free and halogen free ? for industrial and consumer applications , not qualified for automotive applications 1.3 target applications the sensor targets all applications where a high precisi on unipolar magnetic switch is required (e.g. position sensing). due to the current interface the number of wires required in the application is minimized thus saving costs and increasing relia bility. this is specially helpfu l in all applications where the microcontr oller is not on the same pcb as the hall switch but in some distance.
data sheet 6 rev. 1.0, 2010-08-02 TLV4976-1K functional description 2 functional description 2.1 general the TLV4976-1K is an integrated circuit hall-effect sens or designed specifically for highly accurate applications. precise magnetic switching thresholds and high temperature stab ility are achieved by acti ve error compensation circuits and chopper techniques on the chip. the ic has a current interface with a 6ma / 14ma output. a magnetic south pole (positive field) with strength above b op turns the output to high (14ma) and a magnetic field with strength below b rp turns it to low (6ma). 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 n.c. no internal connection 3 gnd ground center of sensitive area 1 0 .15 1.5 0.15 0.8 2 3 sc59
data sheet 7 rev. 1.0, 2010-08-02 TLV4976-1K functional description 2.4 block diagram figure 2 functional block diagram 2.5 functional block description the chopped hall ic switch comprises a hall probe, bias generator , compensation circuits , oscillator and output transistor. the bias generator provides currents for the hall probe and the active circui ts. compensation circuits stabilize the temperature behavior and reduce 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 other thermal stresses in the package. this chopper technique together with the threshold generator and the comparator ensure high accurate magnetic switching points. the current consumption depends on the switching status. ref chopped hall probe v s amplifier low pass filter comparator with hysteresis voltage regulator reverse polarity protected oscillator and sequencer bias and compensation circuits 8 ma
data sheet 8 rev. 1.0, 2010-08-02 TLV4976-1K functional description figure 3timing diagram figure 4 output signal applied magnetic field 90% 10% i s t f t d t r t d b rp b op i shigh i s b op b rp 0 i slow b
data sheet 9 rev. 1.0, 2010-08-02 TLV4976-1K specification 3 specification 3.1 application circuit the advantage of the current interface is, that only two wires are necessary to connect the sensor. at least one series resistor is required to convert the tw o output states of the hall se nsor from current consumption to a voltage information. a typical value for r l is 100 : . this gives a typical signal voltage level v sig = 0.8v in the off state and 1.4v in the on state. if the sensor is operated in an application environment with disturbances on the supply line, an additional series resistor r s is recommended. the maximum value for the series resistor r s can be calculated using the following formula: r smax v supplymin v smin ? i shighmax ------------------ -------------- ------------- r l ? = v s_min is the minimal supply voltage which might occur due to disturbances on the supply line v s . example: v supplymin = 6v; v smin = 3v; r l = 100 : ; i shighmax = 17ma : r smax = 76.5 : figure 5 application circuit input c gnd v supply c tlv 4976-1k v s gnd r l r s 4.7 nf v sig
data sheet 10 rev. 1.0, 2010-08-02 TLV4976-1K specification 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 hall effect switch. all parameters specified in the followi ng sections refer to these operating conditions unless otherwise mentioned. 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 median of the production. table 2 absolute maximum rating parameters parameter symbol limit values unit note / test condition min. 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 storage temperature t s -40 150 c magnetic flux density b ? unlimited mt esd robustness hbm 1) 1) human body model (hbm) tests according to: eos/esd a ssociation standard s5.1-1993 and mil. std. 883d method 3015.7 v esd,hbm 4 kv r = 1.5k , c = 100pf t a = 25c table 3 operating conditions parameters parameter symbol values unit note / test condition min. typ. max. supply voltage v s 318v junction temperature t j - 40 85 c table 4 general electrical characteristics 1) parameter symbol values unit note / test condition min. typ. max. supply current low i slow 567mab < b rp v s = 3v ... 18v supply current high i shigh 12 14 17 ma b > b op v s = 3v ... 18v
data sheet 11 rev. 1.0, 2010-08-02 TLV4976-1K specification calculation of the ambient temperature: e.g. for v s = 12.0v, r s = 100w, i shightyp = 14ma : power dissipation: p dis = 148.4mw. in t a = t j ? (r thja x p dis ) = 175c ? (100k/w x 0.15w) resulting max. ambient temperature: t a = 160c reverse current i sr ?0.2mav s = -18v output fall time t f ?0.41.6sr s = 100 output rise time t r ?0.41.6s chopper frequency f osc ? 320 khz switching freq. f sw ?15 2) khz delay time 3) t d ?13 s output jitter 4) t qj ?1?s rms typical value for square wave signal 1khz power-on time 5) t pon ?13?sv s 3.0v thermal resistance 6) r thja ? 100 ? k/w pg-sc59-3-5 1) over operating range, unless otherwise specified. typical values correspond to v s = 12v and t a = 25c 2) to operate the sensor at the max. switching frequency, the value of the m agnetic signal amplitude must be 1.4 times higher than for static fields. this is due to the - 3db cor ner frequency of the low pass filter in the signal path 3) systematic delay between magnetic threshold reached and output switching 4) jitter is the unpredictable devia tion of the output switching delay 5) time from applying v s 3.0v to the sensor unti l the output state is valid 6) thermal resistance from junction to ambient table 5 magnetic characteristics 1) 1) over operating range, unless otherwise specified. typical values correspond to v s = 12 v. parameter symbol values unit note / test condition min. typ. max. operating point b op 5.5 9.25 11.0 mt release point b rp 5.0 7.25 10.5 mt hysteresis b hys 0.5 2.0 3.0 mt temperature compensation of magnetic thresholds t c -0-ppm/k repeatability of magnetic thresholds 2) 2) brep is equivalent to the noise constant b rep -40-t rms typ. value for b / t > 12 mt/ms table 4 general electrical characteristics 1) (cont?d) parameter symbol values unit note / test condition min. typ. max.
data sheet 12 rev. 1.0, 2010-08-02 TLV4976-1K specification 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 branded side n s
data sheet 13 rev. 1.0, 2010-08-02 TLV4976-1K package information 4 package information 4.1 package outline pg-sc59-3-5 figure 7 pg-sc59-3-5 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
data sheet 14 rev. 1.0, 2010-08-02 TLV4976-1K package information 4.2 footprint figure 8 footprint pg-sc59-3-5 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
data sheet 15 rev. 1.0, 2010-08-02 TLV4976-1K package information 4.3 distance between chip and package figure 9 distance between chip and package 4.4 package marking figure 10 marking of TLV4976-1K 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 vd1
published by infineon technologies ag www.infineon.com

▲Up To Search▲

Price & Availability of TLV4976-1K

	To Download TLV4976-1K Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .