1/4 rev. b structure silicon mono lithic integrated circuit type BU52742GUL product bipolar l atch type hall effect ic features 1) two hall elements are on the inside 2) high speed operation absolute maximum ratings (ta=25) parameters symbol limit unit power supply voltage v dd -0.1+4.5 1 v output current i out 1.0 ma power dissipation pd 460 2 mw operating temperature range t opr -25+85 storage temperature range t st g -40+125 1. not to exceed pd 2. reduced by 4.60mw for each increase in ta of 1 over 25 mounted on 70mm70mm1.6mm glass-epoxy pcb operating conditions (ta=-25 +85) parameters symbol min typ max unit power supply voltage v dd 2.4 3.0 3.6 v radiation hardiness is not designed.
2/4 rev. b magnetic, electrical characteristics (unless otherwise specified, v dd =3.0v, ta=25) parameters symbol limit unit conditions min typ max operate point b op 5 10 15 mt release point b rp -15 -10 -5 mt frequency f op 200 250 - kh output high voltage v oh v dd -0.4 - - v b 3/4 rev. b package outlines pin no.?pin name pin no. pin name function comment a1 out1 output1 a2 test1 open. a3 out2 output2 b1 vdd power supply b2 test2 open or short to gnd. b3 gnd gound (unit:mm) abe marking lot no.
4/4 rev. b block diagram cautions on use 1) absolute maximum ratings an excess in the absolute maximum ratings, such as su pply voltage, temperature ra nge of operating conditions, etc., can break down devices, thus making impossible to identify breaking mode such as a short circuit or an open circuit. if any special mode exceeding the absolute maximum ratings is assumed, consideration should be given to take physical safety measures including the use of fuses, etc. 2) gnd voltage make setting of the potential of the gnd terminal so t hat it will be maintained at the minimum in any operating state. 3) thermal design perform thermal design in which ther e are adequate margins by taking into account the permissible dissipation (pd) in actual states of use. 4) pin short and mistake fitting when mounting the ic on the pcb, pay attention to the orientation of the ic. if there is a placement mistake, the ic may be burned up. 5) operation in strong electric field be noted that using ics in the strong electric field can malfunction them. 6) mutual impedance use short and wide wiring tracks for the power supply and ground to keep the mutual impedance as small as possible. use a capacitor to keep ripple to a minimum. 7) ground wiring pattern if small-signal gnd and large-current gnd are provided, it will be recommended to separate the large-current gnd pattern from th e small-signal gnd pattern and establish a single ground at the reference point of the set pcb so that resistance to the wiring pattern a nd voltage fluctuations due to a large current will cause no fluctuations in vol tages of the smallCsignal gnd. pay attention not to cause fluctuations in the gnd wiring pattern of external parts as well. latch dynamic offset cancellation sample & hold hall element latch dynamic offset cancellation sample & hold gnd dd out2 out1 dd dd hall element timing logic timing logic osc test1 test2
r1010 a www.rohm.com ? 2010 rohm co., ltd. all rights reserved. notice rohm customer support system http://www.rohm.com/contact/ thank you for your accessing to rohm product informations. more detail product informations and catalogs are available, please contact us. notes no copying or reproduction of this document, in part or in whole, is permitted without the consent of rohm co.,ltd. the content specied herein is subject to change for improvement without notice. the content specied herein is for the purpose of introducing rohm's products (hereinafter "products"). if you wish to use any such product, please be sure to refer to the specications, which can be obtained from rohm upon request. examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the products. the peripheral conditions must be taken into account when designing circuits for mass production. great care was taken in ensuring the accuracy of the information specied in this document. however, should you incur any damage arising from any inaccuracy or misprint of such information, rohm shall bear no responsibility for such damage. the technical information specied herein is intended only to show the typical functions of and examples of application circuits for the products. rohm does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by rohm and other parties. rohm shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. the products specied in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, ofce-automation equipment, commu- nication devices, electronic appliances and amusement devices). the products specied in this document are not designed to be radiation tolerant. while rohm always makes efforts to enhance the quality and reliability of its products, a product may fail or malfunction for a variety of reasons. please be sure to implement in your equipment using the products safety measures to guard against the possibility of physical injury, re or any other damage caused in the event of the failure of any product, such as derating, redunda ncy, re control and fail-safe designs. rohm shall bear no responsibility whatsoever for your use of any product outside of the prescribed scope or not in accordance with the instruction manual. the products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospac e machinery, nuclear-reactor controller, fuel- controller or other safety device). rohm shall bear no responsibility in any way for use of any of the products for the above special purposes. if a product is intended to be used for any such special purpose, please contact a rohm sales representative before purchasing. if you intend to export or ship overseas any product or technology specied herein that may be controlled under the foreign exchange and the foreign trade law, you will be required to obtain a license or permit under the law.
|
