1、RT9245RT9245是一款4相電源控制，其設(shè)計符合el VRD10.1規(guī)格，具有Inetl CPU Prescott電壓調(diào)整功能，主要應(yīng)用于新型的915和945主板中。RT9245的電路框圖MAXPGOOD VCC DVDRT邏輯INH1VID4 VID3 VID2 VID1 VID0 VID125&驅(qū)動器過流設(shè)置上電復(fù)位振蕩器+ +DACCPINH邏輯INH2&驅(qū)動器+ +CPINH過壓設(shè)置3+ +CPINHPG信號4+ +CP相位控制器CSP1CSP2CSP3 CSP4電流比較器誤差放大器GAP放大器MUX關(guān)斷設(shè)置MUX軟啟動CSNSUM/MVOSSFBCOMPSSADJGNDRT92

2、45的針腳封裝圖VID4 VID3 VID2 VID1 VID0 VID125 SGNDFB COMPVCC282726251234423123DVD SS RT VOSSCSN IMAX邏輯&驅(qū)動器邏輯&驅(qū)動器RT9245的各引腳功能引腳號引腳名稱引腳功能14 DI V23 DI V，此 3”模C式P無U在“工2 D作I V，則懸空模腳式均電個壓6CP引U 若這端。識別時41別DI端V出識號輸制信無控50 DI V612D5I V7DNGS端接地8BF端反饋9P MOC 出端器輸放大誤差10端PGOO輸D入信號GROEOD11DVD 檢測過壓電壓12V端輸入12SS制端動控軟啟13TR置端率

3、設(shè)器頻振蕩14置 S值O設(shè)V偏移S 最初電壓輸出15端 X設(shè)A M置I 電流啟動保護(hù)過流16）通道所以端NS（C輸入反相檢測電流17CN空腳18J DA端設(shè)置電流輸出19DNG端接地2011端PS C輸入檢測平衡電流2133端PS C輸入檢測平衡電流2222端PS C輸入檢測平衡電流2344端PS C輸入檢測平衡電流2444信號輸出端2533信號輸出端2622信號輸出端2711信號輸出端28端VCC輸入電壓供電12VRT9245的輸出電壓由引腳16控制，控制這些引腳的電平組合即可控制輸出端的電壓。RT9245引腳16的電平與輸出電壓的關(guān)系輸出電壓（V）VID4VID3VID2VID1VID0V

4、ID12511111不確定無CPU0101000.83750100110.8500100100.86250100010.8750100000.88750011110.9000011100.91250011010.9250011000.93750010110.9500010100.96250010010.9750010000.98750001111.0000001101.01250001011.0250001001.03750000111.0500000101.06250000011.0750000001.08751111011.1001111001.11251110111.1251110101

5、.1501110001.1751101101.200續(xù)表VID4VID3VID2VID1VID0VID125輸出電壓（V）1101001.2125V1100111.2251100101.23751100011.2501100001.26251011111.2751011101.28751011011.3001011001.31251010111.3251010101.33751010011.3501010001.36251001111.3751001101.38751001011.4001001001.41251000111.4251000101.43751000011.4501000001.

6、46250111111.4750111101.48750111011.5000111001.51250110111.5250110101.53750110011.5500110001.56250101111.5750101101.58750101011.600RT9245的典型應(yīng)用電路VIN1uHATX 12VC11C121uFATX 12V1000uFC14 1000uFC10 0.1uFC13C15 1000uFR2210 D1 1N41481uFR23 0Q1RT9603DRVH81BSTL11uH4VCC7IPD09N03LASWC9 0.1uFVCC 5VR25 2.2R24 0Q2

7、52INNCDRVLPGND3IPD06N03LAC163.3nFR9 106ATX 12VVC21 1000uFC18 0.1uFC20 1000uFC4INRT92450.1uF1VCC 28C19VID4 VID3 VID2VID1VID4R26 10VOUTR1001uF22726D2Q312R27VID3 VID2VID1RT96031N41488010R11BSTDRVH3L21uHC35 to C4641000uF x 12R120VCC7IPD09N03LA3 25+4SWC17 0.1uFR1304 24R28R295Q4VID0VID0VID125502.22R14 10k

8、IN NCDRVLCSP4 23+63VID125R1 0C5 0.1uFIPD06N03LAPGNDC2210kC47 to C50R152273.3nFCSP2610uF x 4SGNDC6 0.1uFR16 10kN.C8CSP3 21FBC70.ATX 12VC133pF920V1uFCOMPCSP1C26C27C24 0.1uFIN1000uF 1000uFR2 3kR1710kC2 10nFGND 19 R180C25R3 15kV10R30 10C8 0.1uFR19 82CC18PGOODDVDSS RT5VADJNCD31uFR31 0Q5R4 10kRT9603DRVH1N4148R5 9.1k118ATX 12V117BSTL31uH4C3R20 33012CSN 16VCCIPD09N03LA70.1uFSW13C23 0.1uFR62kR33R32 0Q630k15NCR714MAX52.2VOSS2INDRVLR8 100k3NCIPD06N03LAR21 6.8kC28PGND3.3nF6ATX 12VVINC30 0.1uFC32C33