View BU4809_6997435.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

datasheet 2/13 bu48xx series bu49xx series tsz02201-0r7r0g300060-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.008 www.rohm.com tsz22111 ? ? connection diagram & pin descriptions ssop5 sop4 vsof5 sot89-3f pin no. symbol function pin no. symbol function 1 v out reset output 1 v out reset output 2 v dd power supply voltage 2 v dd power supply voltage 3 gnd gnd 3 n.c. unconnected terminal 4 n.c. unconnected terminal 4 gnd gnd 5 n.c. unconnected terminal pin no. symbol function pin no. symbol function 1 v out reset output 1 v out reset output 2 sub substrate* 2 v dd power supply voltage 3 n.c. unconnected terminal 3 gnd gnd 4 v dd power supply voltage 5 gnd gnd *connect the substrate to v dd v dd v out sub n.c gnd 4 3 2 1 5 marking lot. no v out v dd n.c. gnd 1 2 3 4 marking lot. no v out v dd gnd n.c. n.c. lot. no marking marking lot.no 1 v out v dd 2 3 gnd
datasheet 3/13 bu48xx series bu49xx series tsz02201-0r7r0g300060-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.008 www.rohm.com tsz22111 ? ? ordering information b u x x x x x - t r part output type reset voltage value package packaging and number 48 : open drain 09 : 0.9v g : ssop5 forming specification 49 : cmos 0.1v step f : sop4 tr : emb ossed tape 48 : 4.8v fve : vsof5 and reel fp3 : sot89-3f ssop5 2.90.2 0.13 4 + 6 -4 1.6 2.80.2 1.10.05 0.050.05 +0.2 -0.1 +0.05 -0.03 0.42 +0.05 -0.04 0.95 5 4 1 2 3 1.25max. 0.2min. 0.1 direction of feed reel * order quantity needs to be multiple of the minimum quantity. embossed carrier tape tape quantity direction of feed th e direction is th e 1 p in of p rodu ct i s a t th e upper ri gh t wh en you hol d reel on th e l eft hand a nd you pull ou t th e tape on th e ri gh t hand 3000pcs tr ( ) 1pin (unit : mm) sop4 2.1 0.2 0.05 1.3 2.0 0.2 1 2 4 3 1.25 +0.2 0.1 4 +6 0.27 0.15 4 0.13 +0.05 0.03 0.90.05 0.05 0.05 1.05max. 0.32 +0.05 0.04 0.42 +0.05 0.04 s 0.1 s (unit : mm) vsof5 1.2 0.05 4 3 1.0 0.05 1 0.6max 0.22 0.05 0.5 5 1.6 0.05 0.13 0.05 0.2max 2 1.6 0.05 ( max 1.28 include bu rr) sot89-3f 4.5 1 2 3 2.5
datasheet 4/13 bu48xx series bu49xx series tsz02201-0r7r0g300060-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.008 www.rohm.com tsz22111 ? ? lineup output type open drain cmos detection voltage marking part number marking part number 4.8v jr bu4848 lh bu4948 4.7v jq bu4847 lg bu4947 4.6v jp bu4846 lf bu4946 4.5v jn bu4845 le bu4945 4.4v jm bu4844 ld bu4944 4.3v jl bu4843 lc bu4943 4.2v jk bu4842 lb bu4942 4.1v jj bu4841 la bu4941 4.0v jh bu4840 kz bu4940 3.9v jg bu4839 ky bu4939 3.8v jf bu4838 kx bu4938 3.7v je bu4837 kw bu4937 3.6v jd bu4836 kv bu4936 3.5v jc bu4835 ku bu4935 3.4v jb bu4834 kt bu4934 3.3v ja bu4833 ks bu4933 3.2v hz bu4832 kr bu4932 3.1v hy bu4831 kq bu4931 3.0v hx bu4830 kp bu4930 2.9v hw bu4829 kn bu4929 2.8v hv bu4828 km bu4928 2.7v hu bu4827 kl bu4927 2.6v ht bu4826 kk bu4926 2.5v hs bu4825 kj bu4925 2.4v hr bu4824 kh bu4924 2.3v hq bu4823 kg bu4923 2.2v hp bu4822 kf bu4922 2.1v hn bu4821 ke bu4921 2.0v hm bu4820 kd bu4920 1.9v hl bu4819 kc bu4919 1.8v hk bu4818 kb bu4918 1.7v hj bu4817 ka bu4917 1.6v hh bu4816 jz bu4916 1.5v hg bu4815 jy bu4915 1.4v hf bu4814 jx bu4914 1.3v he bu4813 jw bu4913 1.2v hd bu4812 jv bu4912 1.1v hc bu4811 ju bu4911 1.0v hb bu4810 jt bu4910 0.9v ha BU4809 js bu4909
datasheet 5/13 bu48xx series bu49xx series tsz02201-0r7r0g300060-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.008 www.rohm.com tsz22111 ? ? absolute maximum ratings parameter symbol limits unit power supply voltage v dd -0.3 to +7 v output voltage nch open drain output v out gnd-0.3 to +7 v cmos output gnd-0.3 to v dd +0.3 output current io 70 ma power dissipation ssop5 *1*4 pd 540 mw sop4 *2*4 400 vsof5 *3*4 210 operation temperature range t opt -40 to +125 c ambient storage temperature tstg -55 to +125 electrical characteristics parameter symbol condition limits unit min. typ. max. detection voltage v det v dd =h l , ta=25 , ? ? ? h l ta=-40 ?
datasheet 6/13 bu48xx series bu49xx series tsz02201-0r7r0g300060-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.008 www.rohm.com tsz22111 ? ? ? ? v det (t) : standard detection voltage (0.9v to 4.8v, 0.1v step) r l : pull-up resistor to be connected between v out and power supply. block diagrams
datasheet 7/13 bu48xx series bu49xx series tsz02201-0r7r0g300060-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.008 www.rohm.com tsz22111 ? ? typical performance curves fig.3 circuit current 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0 1 2 3 4 5 6 7 v dd supply voltage
datasheet 8/13 bu48xx series bu49xx series tsz02201-0r7r0g300060-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.008 www.rohm.com tsz22111 ? ? typical performance curves C continued 0.0 0.1 0.2 0.3 0.4 0.5 -40 0 40 80 120 temperature ?
datasheet 9/13 bu48xx series bu49xx series tsz02201-0r7r0g300060-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.008 www.rohm.com tsz22111 ? ? typical performance curves C continued 0.0 0.2 0.4 0.6 0.8 1.0 -40 0 40 80 120 temperature
datasheet 10/13 bu48xx series bu49xx series tsz02201-0r7r0g300060-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.008 www.rohm.com tsz22111 ? ? application information explanation of operation for both the open drain type(fig.12)and the cmos output type(fig.13), the detection and release voltages are used as threshold voltages. when the voltage applied to the v dd pins reaches the applicable threshold voltage, the v out terminal voltage switches from either ?high? to ?low? or from ?low? to ?high?. because the bu48xx series uses an open drain output type, it is possible to connect a pull-up resistor to v dd or another power supply [the output ?high? voltage (v out ) in this case becomes v dd or the voltage of the other power supply]. fig.12 (bu48xx type internal block diagram) fig.13 (bu49xx type internal block diagram) reference data examples of output rising value(t plh )and output falling value(t phl ) part number t plh [s] t phl [s] bu4845 23.3 275.9 bu4945 3.5 354.3 v dd =4.3v 5.1v v dd =5.1v 4.3v * this data is for reference only. this figure will vary with the application, so please confirm actual operation conditions before use. timing waveforms example:the following shows the relationship between the input voltage v dd , the c t terminal voltage v ct and the output voltage v out when the input power supply voltage v dd is made to sweep up and sweep down (the circuits are those in fig.12 and 13).
datasheet 11/13 bu48xx series bu49xx series tsz02201-0r7r0g300060-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.008 www.rohm.com tsz22111 ? ? circuit applications 1) examples of a common power supply detection reset circuit application examples of bu48xx series (open drain output type) and bu49xx series (cmos output type) are shown below. case1:the power supply of the microcontroller (v dd 2) differs from the power supply of the reset detection (v dd 1). use the open drain output type (bu48xx series). attach a load resistance (r l ) between the output and v dd 2. (as shown fig.15) case2:the power supply of the microcontroller (v dd 1) is same as the power supply of the reset detection (v dd 1). use cmos output type (bu43xx series) or open drain output type (bu48xx series). attach a load resistance (r l ) between the output and v dd 1. (as shown fig.16) when a capacitance c l for noise filtering for setting the output delay time is connected to the v out pin (the reset signal input terminal of the microcontroller), please take into account the waveform of the rise and fall of the output voltage (v out ). 2) the following is an example of a circuit application in which an or connection between two types of detection voltage resets the microcontroller. to reset the microcontroller when many independent power supplies are used in the system, or connect an open drain output type (bu48xx series) to the microcontroller?s input with pull-up resistor to the supply voltage of the microcontroller (v dd3 ) as shown in fig. 20. by pulling-up to v dd3 , output ?high? voltage of micro-controller power supply is possible. v dd1 bu48xx v dd2 gnd c l (capacitor for noise filtering) r l c in r st micro controller c l (capacitor for noise filtering) v dd1 bu49xx c in gnd r st micro controller fig.15 open drain output type fig.16 cmos output type v dd1 v dd3 gnd r st
datasheet 12/13 bu48xx series bu49xx series tsz02201-0r7r0g300060-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.008 www.rohm.com tsz22111 ? ? 0.001 0.01 0.1 1 10 3 4 5 6 7 8 9 10 idd-peak[ma] vdd[v] vdd - idd peak current ta=25?c bu49xx,bu43xx bu48xx,bu42xx bd52xx bd53xx t em p - id d (b u 42xx) 0.0 0.5 1.0 1.5 2.0 2.5 -50 -30 -10 10 30 50 70 90 110 130 t em p idd peak current[ma] v d d 3v v d d 6v v d d 7v v d d 4v
datasheet 13/13 bu48xx series bu49xx series tsz02201-0r7r0g300060-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.008 www.rohm.com tsz22111 ? ? operational notes 1) absolute maximum ratings operating the ic over the absolute maximum ratings may damage the ic. the damage can either be a short circuit between pins or an open circuit between pins. therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the ic is operated over the absolute maximum ratings. 2) ground voltage the voltage of the ground pin must be the lowest voltage of all pins of the ic at all operating conditions. ensure that no pins are at a voltage below the ground pin at any time, even during transient condition. 3) recommended operating conditions these conditions represent a range within which the expected characteristics of the ic can be approximately obtained. the electrical characteristics are guaranteed under the conditions of each parameter. 4) bypass capacitor for noise rejection to help reject noise, put a 1f capacitor between v dd pin and gnd and 1000pf capacitor between v out pin and gnd. be careful when using extremely big capacitor as transient response will be affected. 5) short between pins and mounting errors be careful when mounting the ic on printed circuit boards. the ic may be damaged if it is mounted in a wrong orientation or if pins are shorted together. short circuit may be caused by conductive particles caught between the pins. 6) operation under strong electromagnetic field operating the ic in the presence of a strong electromagnetic field may cause the ic to malfunction. 7) the v dd line impedance might cause oscillation because of the detection current. 8) a v dd to gnd capacitor (as close connection as possible) should be used in high v dd line impedance condition. 9) lower than the mininum input voltage puts the v out in high impedance state, and it must be v dd in pull up (v dd ) condition. 10) external parameters the case of needless ?delay time?, recommended to insert more 470k ? ? ? ? ? ? ?
datasheet datasheet notice - rev.004 ? 2013 rohm co., ltd. all rights reserved. notice general precaution 1) before you use our products, you are requested to care fully read this document and fully understand its contents. rohm shall not be in any way responsible or liable for fa ilure, malfunction or accident arising from the use of any rohm?s products against warning, caution or note contained in this document. 2) all information contained in this document is current as of the issuing date and subjec t to change without any prior notice. before purchasing or using rohm?s products, please confirm the la test information with a rohm sales representative. precaution on using rohm products 1) our products are designed and manufactured for applicat ion in ordinary electronic equipments (such as av equipment, oa equipment, telecommunication equipment, home electroni c appliances, amusement equipment, etc.). if you intend to use our products in devices requiring extremel y high reliability (such as medical equipment, transport equipment, traffic equipment, aircraft/spacecra ft, nuclear power controllers, fuel c ontrollers, car equipment including car accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or serious damage to property (?specific applications?), please consult with the rohm sale s representative in advance. unless otherwise agreed in writing by rohm in advance, rohm shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of any ro hm?s products for specific applications. 2) rohm designs and manufactures its products subject to strict quality control system. however, semiconductor products can fail or malfunction at a certain rate. please be sure to implement, at your own responsibilities, adequate safety measures including but not limited to fail-safe desi gn against the physical injury, damage to any property, which a failure or malfunction of our products may cause. the following are examples of safety measures: [a] installation of protection circuits or other protective devices to improve system safety [b] installation of redundant circuits to reduce the impact of single or multiple circuit failure 3) our products are designed and manufactured for use under standard conditions and not under any special or extraordinary environments or conditio ns, as exemplified below. accordin gly, rohm shall not be in any way responsible or liable for any damages, expenses or losses arising from the use of an y rohm?s products under any special or extraordinary environments or conditions. if you intend to use our products under any special or extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of product performance, reliability, etc, prior to use, must be necessary: [a] use of our products in any types of liquid, incl uding water, oils, chemicals, and organic solvents [b] use of our products outdoors or in places where the products are exposed to direct sunlight or dust [c] use of our products in places where the products ar e exposed to sea wind or corrosive gases, including cl 2 , h 2 s, nh 3 , so 2 , and no 2 [d] use of our products in places where the products are exposed to static electricity or electromagnetic waves [e] use of our products in proximity to heat-producing components, plastic cords, or other flammable items [f] sealing or coating our products with resin or other coating materials [g] use of our products without cleaning residue of flux (ev en if you use no-clean type fluxes, cleaning residue of flux is recommended); or washing our products by using water or water-soluble cleaning agents for cleaning residue after soldering [h] use of the products in places subject to dew condensation 4) the products are not subjec t to radiation-proof design. 5) please verify and confirm characteristics of the final or mounted products in using the products. 6) in particular, if a transient load (a large amount of load applied in a short per iod of time, such as pulse) is applied, confirmation of performance characteristics after on-boar d mounting is strongly recomm ended. avoid applying power exceeding normal rated power; exceeding the power rating under steady-state loading c ondition may negatively affect product performance and reliability. 7) de-rate power dissipation (pd) depending on ambient temper ature (ta). when used in seal ed area, confirm the actual ambient temperature. 8) confirm that operation temperature is within t he specified range described in the product specification. 9) rohm shall not be in any way responsible or liable for fa ilure induced under deviant condi tion from what is defined in this document.
datasheet datasheet notice - rev.004 ? 2013 rohm co., ltd. all rights reserved. precaution for mounting / circuit board design 1) when a highly active halogenous (chlori ne, bromine, etc.) flux is used, the resi due of flux may negatively affect product performance and reliability. 2) in principle, the reflow soldering method must be used; if flow soldering method is preferred, please consult with the rohm representative in advance. for details, please refer to rohm mounting specification precautions regarding application examples and external circuits 1) if change is made to the constant of an external circuit, pl ease allow a sufficient margin considering variations of the characteristics of the products and external components, including transient characteri stics, as well as static characteristics. 2) you agree that application notes, re ference designs, and associated data and in formation contained in this document are presented only as guidance for products use. theref ore, in case you use such information, you are solely responsible for it and you must exercise your own indepen dent verification and judgment in the use of such information contained in this document. rohm shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of such information. precaution for electrostatic this product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. please take proper caution in your manufacturing process and storage so that voltage exceeding t he products maximum rating will not be applied to products. please take special care under dry condit ion (e.g. grounding of human body / equipment / solder iron, isolation from charged objects, se tting of ionizer, friction prevention and temperature / humidity control). precaution for storage / transportation 1) product performance and soldered connections may deteriora te if the products are stor ed in the places where: [a] the products are exposed to sea winds or corros ive gases, including cl2, h2s, nh3, so2, and no2 [b] the temperature or humidity exceeds those recommended by rohm [c] the products are exposed to di rect sunshine or condensation [d] the products are exposed to high electrostatic 2) even under rohm recommended storage c ondition, solderability of products out of recommended storage time period may be degraded. it is strongly recommended to confirm sol derability before using products of which storage time is exceeding the recommended storage time period. 3) store / transport cartons in the co rrect direction, which is indicated on a carton with a symbol. otherwise bent leads may occur due to excessive stress applied when dropping of a carton. 4) use products within the specified time after opening a humidity barrier bag. baking is required before using products of which storage time is exceeding the recommended storage time period. precaution for product label qr code printed on rohm products label is for rohm?s internal use only. precaution for disposition when disposing products please dispose them proper ly using an authorized industry waste company. precaution for foreign exchange and foreign trade act since our products might fall under cont rolled goods prescribed by the applicable foreign exchange and foreign trade act, please consult with rohm representative in case of export. precaution regarding intellectual property rights 1) all information and data including but not limited to application example contained in this document is for reference only. rohm does not warrant that foregoi ng information or data will not infringe any intellectual property rights or any other rights of any third party regarding such information or data. rohm shall not be in any way responsible or liable for infringement of any intellectual property rights or ot her damages arising from use of such information or data.: 2) no license, expressly or implied, is granted hereby under any intellectual property rights or other rights of rohm or any third parties with respect to the information contained in this document.
datasheet datasheet notice - rev.004 ? 2013 rohm co., ltd. all rights reserved. other precaution 1) the information contained in this document is provi ded on an ?as is? basis and rohm does not warrant that all information contained in this document is accurate and/or error-free. rohm shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties resulting from inaccuracy or errors of or concerning such information. 2) this document may not be reprinted or reproduced, in whol e or in part, without prior written consent of rohm. 3) the products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written consent of rohm. 4) in no event shall you use in any way whatsoever the pr oducts and the related technical information contained in the products or this document for any military purposes, incl uding but not limited to, the development of mass-destruction weapons. 5) the proper names of companies or products described in this document are trademarks or registered trademarks of rohm, its affiliated companies or third parties.

▲Up To Search▲

Price & Availability of BU4809

	To Download BU4809 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .