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1/16 www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. small-sized class-d speaker amplifiers analog input monaural class-d speaker amplifier BD5460GUL description BD5460GUL is a low voltage drive class-d monaural speake r amplifier that was developed for cellular phones, mobile audio products and the others.lc-f ilter of speaker output is unnecessary, and t he number of external components is three. it is suitable for the application of battery drive bec ause of high efficiency and low power consumption. also, stand-by current is 0a (typ.), and fast transitions fr om standby to active with little pop noise. it is suitable for applications that switch repeatedly between stand-by and active. features 1) no lc filter required 2) only three external components 3) high power 2.5w/4 ? /btl (vdd=5v, rl=4 ? , thd+n=10%, typ.) 4) high power 0.85w/8 ? /btl (vdd=3.6v, rl=8 ? , thd+n=10%, typ.) 5) gain 6db 6) analog differential input / pwm digital output 7) pop noise suppression circuitry 8) built-in standby function 9) protection circuitry (short protection [auto recover wi thout power cycling], thermal shutdown, under voltage lockout) 10) very small package 9-bump wl-csp (1.6*1.6*0.55mmmax) applications mobile phones, mobile electronics applications absolute maximum ratings(ta=25 ) item symbol ratings unit power supply voltage vdd 7.0 v power dissipation pd 690 *1 mw storage temperature range ts t g -55 +150 stby terminal input range vstby -0.1 vdd+0.1 v in+, in- terminal input range vin -0.1 vdd+0.1 v *1 when mounted on a 50 mm 58mm rohm standard board, reduce by 5.52 mw/c above ta = +25 c. operating conditions item symbol ratings unit power supply voltage vdd +2.5 +5.5 v temperature range topr -40 +85 this product is not designed for protection against radioactive rays no.10101eat01 downloaded from: http:///
2/16 BD5460GUL www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. technical note electric characteristics (unless otherwise specified, ta=25 , vdd=3.6v, f=1khz, rl=8 ? , ac item=lc filter ; l=22h, c=1f ) parameter symbol limits unit conditions min. typ. max. circuit current (no signal) i cc D 2.0 4.0 ma active mode, no load circuit current (standby) i stby D 0.1 2 a standby mode output power 1 p o1 450 680 D mw btl, f=1khz, thd+n=1% *1 output power 2 p o2 550 850 D mw btl, f=1khz, thd+n=10% *1 voltage gain g v 5.4 5.9 6.4 db btl power supply rejection ratio p srr 45 53 D db btl,f=1khz, vripple=0.1vpp *2 output offset voltage vo -25 0 +25 mv vin=0v, btl switching frequency fosc 175 250 325 khz start-up time ton 0.39 0.51 0.73 msec standby input voltage high-level v stbyh 1.4 D vdd v active mode low-level v stbyl 0 D 0.4 v standby mode standby input current high-level i stbyh 6 12 18 a v stby =3.6v low-level i stbyl -5 0 5 a v stby =0v *btl=bridged tied load (voltage between a3-c3.), *1;b.w.=400 30khz,*2;din audio measurement circuit diagram active / standby control stby pin(c2pin) mode pin level conditions active h ic active standby l ic shutdown stby in+ in- bias osc pwm h-bridge 0.1 0.1 vdd c2 a1 c1 b1 b2 pvdd out- a3 out+ c3 pgnd a2 gnd b3 a v stby vdd 8 v 10 22 h 1 vripple a vin vin v 22 h 1 v v btl v se v se downloaded from: http:///
3/16 BD5460GUL www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. technical note package outlines wl-csp vcsp50l1 block diagram pin assignment chart pin no. pin a1 in+ a2 gnd a3 out- b1 vdd b2 pvdd b3 pgnd c1 in- c2 stby c3 out+ (unit : mm) bottom view top view 5460 lot no. stby in+ in- out- out+ bias osc pwm h- bridge gnd vdd pvdd c2 a1 c1 a3 c3 a2 b3 pgnd b1 b2 downloaded from: http:///
4/16 BD5460GUL www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. technical note application circuit example fig.2 differential input with coupling input capacitors y fig.3 single-ended input y fig.1 differential input for mobile phone y downloaded from: http:///
5/16 BD5460GUL www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. technical note evaluation board circuit diagram y = = please connect to gnd line. please connect to power supply (vdd=+2.5 5.5v) line. please connect to input signal line. please connect to speaker . downloaded from: http:///
6/16 BD5460GUL www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. technical note evaluation board parts list qty. item description smd size manufacturer/ part number 2 c1, c2 capacitor, 0.1f 0603 murata grm188r71c104ka01d 1 c3 capacitor, 10f a (3216) rohm tcfga1a106m8r 1 s1 slide switch 4mm x 10.2mm nkk ss-12sdp2 1 u1 ic, BD5460GUL, mono class-d audio amplifier 1.6mm x 1.6mm wlcsp package rohm BD5460GUL 1 pcb1 printed-circuit board, BD5460GUL evm D D description of external components input coupling capacitor (c1,c2) it makes a input coupling capacitor 0.1f. input impedance is 100k ? (typ.). it sets cut-off frequency fc by the following formula by input coupling capacitor c1 (=c2) and input impedance ri. in case of ri =100k ? , c1 (=c2) =0.1f, it becomes fc = about 16 hz. power decoupling capacitor (c3) it makes a power decoupling capacitor 10 f. when making capacitance of the power decoupling capacitor, there is an influence in the audio characteristic. when making small, careful for the audio char acteristic at the actual application. [hz] c1 ri 2 1 fc ? ? ? downloaded from: http:///
7/16 BD5460GUL www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. technical note evaluation board pcb layer top layer silk pattern top layer bottom layer downloaded from: http:///
8/16 BD5460GUL www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. technical note the way of evaluating audio characteristic evaluation circuit diagram when measuring audio characteristics, inse rt lc filter during the out put terminal of ic and the speaker load and measure it. arrange lc filter as close as possi ble to the output terminal of ic. in case of l=22h, c=1f, the cut-off frequency becomes the following. use a big current type - inductor l. (reference) tdk: slf12575t-220m4r0 stby in+ in- out- out+ bias osc pwm h- bridge 0.1 0.1 diff erent ial input h active l shutdown audio input+ audio input- gnd pgnd vdd pvdd 10 c2 a1 c1 a3 c3 0.1 vdd vdd c2 c1 c3 a2 b3 c4 b1 300k b2 ri=100k ri=100k 22 h 22 h 1 f 1 f r l btl audio precision etc rl=speaker load measument instrumen + - khz 34 f1 h 22 2 1 lc 2 1 fc ? ? ? ? downloaded from: http:///
9/16 BD5460GUL www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. technical note about the thermal design by the ic characteristics of an ic have a great deal to do with the temperature at which it is used, and exceeding absolute maximum ratings may degrade and destroy elements. careful consider ation must be given to the heat of the ic from the two standpoints of immediate damage and long-term reliability of oper ation. pay attention to points such as the following. since an maximum junction temperature (tjmax.) or operating temperature range (topr) is shown in the absolute maximum ratings of the ic, to reference the va lue, find it using the pd-ta charac teristic (temperature derating curve). if an input signal is too great when there is insufficient radiation, tsd (therma l shutdown) may operate. tsd, which operates at a chip temperature of approximately +180 , is canceled when this goes below approximately +100 .since tsd operates persistently with the purpose of preventing chip damage , be aware that long-term use in the vicinity that tsd affects decrease ic reliability. temperature derating curve power dissipation values vary according to the board on which the ic is mounted. the power dissipation of this ic when mounted on a multilayer board designed to radiate is greater than the val ues in the graph above. note) values are actual meas urements and are not guaranteed. reference data vcsp50l1 1.5 1.0 0.5 0.0 0 25 50 75 100 125 150 ambient temperature ta( ) power dissipation pd (w) 0.69w measurement conditions ic unit and rohm standard board mount board size 50mm 58mm ja = 181.8 /w 85 downloaded from: http:///
10/16 BD5460GUL www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. technical note typical characteristics table of graphs items parameter figure efficiency vs output power 4, 6 supply current (icc) vs output power 5, 7 vs supply voltage 8 shutdown current (istby) vs supply voltage 9 output power (po) vs load resistance 10, 11 vs supply voltage 12 total harmonic distortion plus noise (thd+n) vs output power 13, 14 vs frequency 15, 16, 17, 18, 25, 26, 27 vs common-mode input voltage 19 supply voltage rejection ratio (psrr) vs frequency 20, 21, 22, 23 common-mode rejection ratio (cmrr) vs frequency 24 gain vs frequency 28, 29, 30, 31 downloaded from: http:///
11/16 BD5460GUL www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. technical note reference data [] [] [] [] =% = [] [] = = = =% = [] [] = = = = = [] [%] = = = = = [] [] = = = = = [] [%] = = = = = [] [] = = = fig.4 fig.5 fig.6 fig.7 fig.8 fig.9 fig.10 fig.11 downloaded from: http:///
12/16 BD5460GUL www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. technical note = [] [] =?=% =?=% =?=% =?=% = = [] [%] = = = = = [] [%] = = = = = [] [%] = = = = = [] [%] = = = = = [] [%] = = = = = [] [%] = = = __ = = = [] [%] = = fig.12 fig.13 fig.14 fig.15 fig.16 fig.17 fig.18 fig.19 downloaded from: http:///
13/16 BD5460GUL www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. technical note = = [] [] = = = = = [] [] = = = = = [] [] = = = = = [] [] = = = = = [] [%] = = = = = [] [%] = = = = = [] [%] = = = = = [] [] = = = fig.20 fig.21 fig.22 fig.23 fig.24 fig.25 fig.26 fig.27 downloaded from: http:///
14/16 BD5460GUL www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. technical note fig.28 fig.29 fig.30 fig.31 __ = = [] [] = = = = = [] [] = = = __ = = [] [] = = = __ = = [] [] = = = BD5460GUL BD5460GUL downloaded from: http:///
15/16 BD5460GUL www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. technical note notes for use (1) numbers and data in entries are representative desi gn values and are not guarantee d values of the items. (2) although we are confident recommending the sample applicat ion circuit, carefully check their characteristics further when using them. when modifying externally attached component c onstants before use, determine them so that they have sufficient margins by taking into account variations in exte rnally attached components and the rohm ic, not only for static characteristics but also including transient characteristics. (3) absolute maximum ratings this ic may be damaged if the absolute maximum ratings fo r the applied voltage, tem perature range, or other parameters are exceeded. therefore, av oid using a voltage or temperature that exceeds the absolute maximum ratings. if it is possible that absolute maximum ratings will be exceeded, use fuses or other phy sical safety measures and determine ways to avoid exceeding the ic's absolute maximum ratings. (4) gnd terminals potential try to set the minimum voltage for gnd terminal s potential, regardless of the operation mode. (5) shorting between pins and mounting errors when mounting the ic chip on a board, be very careful to set the chip's orientation and position precisely. when the power is turned on, the ic may be damaged if it is not mo unted correctly. the ic may also be damaged if a short occurs (due to a foreign object, etc.) between two pins, between a pin and the power supply, or between a pin and the gnd. (6) operation in strong magnetic fields note with caution that operation faults may occur when this ic operates in a strong magnetic field. (7) thermal design ensure sufficient margins to the thermal design by taking in to account the allowable power dissipation during actual use modes, because this ic is power amp. when excessive signal in puts which the heat dissipation is insufficient condition, it is possible that thermal shutdown circuit is active. (8) thermal shutdown circuit this product is provided with a built-in thermal shutdown circuit. when the ther mal shutdown circuit operates, the output transistors are placed under open status. the thermal shutdown circuit is primarily intended to shut down the ic avoiding thermal runaway under abnormal conditions wi th a chip temperature exceeding tjmax = +150 , and is not intended to protect and secure an electrical appliance. (9) load of the output terminal this ic corresponds to dynamic speaker load, and doesn't correspond to the load except for dynamic speakers. (10) the short protection of the output terminal the short-circuiting protection of this ic corresponds only to v dd-short (the short-circuiting with the power) of the output terminal and gnd-short (the short-circuiting with gnd) of the output terminal. it doesn't correspond to the short-circuiting among the output terminals. also, when the short-circuiting condition of the output termi nal is canceled, it detects th e high impedance of the output terminal and it is equipped with the auto recover without powe r cycling(the cancellation) function in the short-circuiting protection. be careful of the output termi nal, because, there is a fear not to return automatically when the short-circuiting condition occurs in pull-up or the pull-down at equal to or less than about 1m ? impedance, (11) operating ranges the rated operating power supply voltage range (vdd=+2.5v +5.5v) and the rated operating temperature range (ta=-40 +85 ) are the range by which basic circuit functions is operated. characteristics and rated output power are not guaranteed in all power supply voltage ranges or temperature ranges. (12) electrical characteristics electrical characteristics show the typical performance of device and depend on board layout, parts, power supply. the standard value is in mounting device and parts on surface of rohms board directly. (13) power decoupling capacitor because the big peak current flows through the power li ne, the class-d amplifier has an influence on the audio characteristic by the capacitance value or the a rrangement part of the power decoupling capacitor. arrange a power decoupling capacitor as close as possible to the vdd terminal of ic. downloaded from: http:///
16/16 BD5460GUL www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. technical note ordering part number b d 5 4 6 0 g u l - e 2 part no. part no. 5460 package gul vcsp50l1 packaging and forming specification e2: embossed tape and reel ? order quantity needs to be multiple of the minimum quantity. embossed carrier tape tapequantity direction of feed the direction is the 1pin of product is at the upper left when you hold reel on the left hand and you pull out the tape on the right hand 3000pcs e2 () direction of feed reel 1pin (unit : mm) vcsp50l1 (BD5460GUL) s 0.08 s a b ba 0.05 1pin mark 3 0.3 0.1 9- 0.25 0.05 1.6 0.1 2 ( 0.15)index post c 1 0.3 0.1 b 0.55max 1.6 0.1 a 0.1 0.05 p=0.5 2 p=0.5 2 downloaded from: http:///
datasheet d a t a s h e e t notice - ge rev.002 ? 2014 rohm co., ltd. all rights reserved. notice precaution on using rohm products 1. our products are designed and manufac tured for application in ordinary elec tronic 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 ex tremely high reliability (such as medical equipment (note 1) , 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 hms products for specific applications. (note1) medical equipment classification of the specific applications japan usa eu china class class class b class class class 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 rohms 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 temperat ure is within the 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. 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 met hod is preferred, please consult with the rohm representative in advance. for details, please refer to rohm mounting specification downloaded from: http:///
datasheet d a t a s h e e t notice - ge rev.002 ? 2014 rohm co., ltd. all rights reserved. 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 independent 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 rohms 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. other precaution 1. this document may not be reprinted or reproduced, in whol e or in part, without prior written consent of rohm. 2. the products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written consent of rohm. 3. in no event shall you use in any wa y whatsoever the products 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. 4. the proper names of companies or products described in this document are trademarks or registered trademarks of rohm, its affiliated companies or third parties. downloaded from: http:///
datasheet datasheet notice C we rev.001 ? 2014 rohm co., ltd. all rights reserved. general precaution 1. before you use our pro ducts, you are requested to care fully read this document and fully understand its contents. rohm shall n ot be in an y way responsible or liabl e for fa ilure, malfunction or acci dent arising from the use of a ny rohms products against warning, caution or note contained in this document. 2. all information contained in this docume nt is current as of the issuing date and subj ec t to change without any prior notice. before purchasing or using rohms products, please confirm the la test information with a rohm sale s representative. 3. the information contained in this doc ument is provi ded on an as is basis and rohm does not warrant that all information contained in this document is accurate an d/or error-free. rohm shall not be in an y way responsible or liable for an y damages, expenses or losses incurred b y you or third parties resulting from inaccur acy or errors of or concerning such information. downloaded from: http:///

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