CM431A LOW VOLTAGE ADJUSTABLE SHUNT REGULATOR

Transcription

1 GNR SCRIPTION FTURS Th is a thr-trminal adjustal shunt voltag rgulator with spcifid thrmal staility and pin-to-pin compatil with th arlir 431 sris. Th output voltag can adjustd to any valu twn RF and 18 y using two xtrnal rsistors. Th offrs low output impdanc for improvd load rgulation with a typical output impdanc of 200mΩ. Bcaus of th activ output circuitry, th can rplac th znr diods in applications such as switching powr supplis, OP crowar circuits, rfrncs for /, / convrtrs with improvd turn-on charactristics. PIN CONFIGURTION TO-92 Front iw SOT-23-3 Top iw 3 Initial voltag rfrnc accuracy of 1.0%. Sink currnt capaility from 1m to 100m Typical output dynamic impdanc lss than 200mΩ; djustal output voltag from RF to 18 vailal in SOT-23, SOT-89, TO-92, & SOP-8 ow output nois Typical quivalnt full rang tmpratur cofficint of 30ppm/ O C PPICTIONS oltag Rfrnc Prcision shunt rgulator High currnt shunt rgulator PWM down convrtr with rfrnc oltag monitor RF NO CTHO XCM233 XCM2R3 Pin 1 RF CTHO Pin 2 CTHO RF Pin 3 NO NO 1 2 Suffix X : Grad, B, C,, or SOT-23-5 Top iw 5 4 SOT-89 Top iw SOP-8 Top iw 1 CTHO RF 8 NC NO NC RF CTHO RF NO CTHO NC NC NC NC NO NC /10/11 Rv1.2 Champion Microlctronic Corporation Pag 1

2 TYPIC PPICTION BOCK IGRM + O = 5 CTHO R Not: R should provid cathod currnt 1m R1 27.5K 0.1% R2 27.5K 0.1% RF + - RF NO 5 Prcision Rgulator 2006/10/11 Rv1.2 Champion Microlctronic Corporation Pag 2

3 ORRING INFORMTION PCKG TORNC 0.5% 1.0% 1.5% T/R Quantity SOT-23-3 (1) CM233 BCM233 CM233 TR=3K SOT-23-3 (1) CM2R3 BCM2R3 CM2R3 TR=3K SOT-23-5 (1) CM235 BCM235 CM235 TR=3K SOT-89 (1) CM89 BCM89 CM89 TR=1K TO-92 (2) CN BCN CN T=2K SOP-8 CS BCS CS SOT-23-3 (1) GCM233* GBCM233* GCM233* TR=3K SOT-23-3 (1) GCM2R3* GBCM2R3* GCM2R3* TR=3K SOT-23-5 (1) GCM235* GBCM235* GCM235* TR=3K SOT-89 (1) GCM89* GBCM89* GCM89* TR=1K TO-92 (2) GCN* GBCN* GCN* T=2K SOP-8 GCS* GBCS* GCS* Nots: (1) dd suffix TR for Tap & Rl. (2) dd suffix T for Tap mmo. (3) *Not: dd suffix G for P Fr Product 2006/10/11 Rv1.2 Champion Microlctronic Corporation Pag 3

4 BSOUT MXIMUM RTINGS Cathod to nod oltag ( K ) (Not 2) -0.3 to 18 Continuous Cathod Currnt (I K ) -100m to 150m Rfrnc Input Currnt (I RF ) -50u to 10m Maximum junction tmpratur rang, T J 150 O C Storag tmpratur rang -65 O C to 150 O C ad tmpratur (soldiring, 10 sconds) 260 O C Not 1: xcding ths ratings could caus damag to th dvic. ll voltags ar with rspct to Ground. Currnts ar positiv into, ngativ out of th spcifid trminal. Not 2: oltag valus ar with rspct to th anod trminal unlss othrwis notd. POWR ISSIPTION TB Packag θ J ( O C/W ) rating factor ( mw/ O C ) T 25 O C T 25 O C Powr rating(mw) T =70 O C Powr rating(mw) T = 85 O C Powr rating (mw) T = 105 O C Powr rating (mw) SOP TO SOT-89 71(not) SOT Not : 1. For SOT-89 packag, Thrmal Rsistanc-Junction to Ta ( θ JT ) = 35 O C/W. T J = T TB + (P x θ JT ) 2. θ J: Thrmal Rsistanc-Junction to mint Junction Tmpratur Calculation: T J = T + (P x θ J ). Th θ J numrs ar guidlins for th thrmal prformanc of th dvic/pc-oard systm. ll of th aov assum no amint airflow. RCOMMN OPRTING CONITIONS Min Max Units Oprating fr air tmpratur rang, T O C Cathod currnt, I K m Cathod voltag, K /10/11 Rv1.2 Champion Microlctronic Corporation Pag 4

5 CTRIC CHRCTRISTICS Unlss othrwis spcifid, ths spcifications apply ovr th oprating amint tmpraturs with T = 25 C. Paramtr Symol Tst Conditions Min Typ Max Units I K = 10m, K = RF,0.5% Rfrnc Input oltag RF I K = 10m, K = RF,1.0% I K = 10m, K = RF,1.5% Rfrnc rift I K = 10m, K = RF, 0 O C T 70 O C 4 17 m oltag Ratio, Rf to Cathod (not 4) IK = 10m, K = 2.5 to m/ Rfrnc Input Currnt I RF I K = 10m, K = RF 2 4 I K = 10m, K = RF, 0 O C T 70 O C 2.3 μ Minimum Oprating Currnt IMIN K = RF m Off-Stat Cathod Currnt IOFF K = 18, RF = μ ynamic Impdanc Z K K = RF, I K = 1m to 100m, f 1kHz Ω Not 3: Ths paramtrs ar guarantd y dsign Not 4: RF K Ratio of chang in rfrnc input voltag to th chang in cathod voltag 2006/10/11 Rv1.2 Champion Microlctronic Corporation Pag 5

6 PRMTR MSURMNT INFORMTION Input K Input K R1 I RF R R2 F (1 + R1/R2) + I x R1 RF Figur 1. Tst Circuit for K = RF Figur 2. Tst Circuit for K > RF Input K I OFF Figur 3. Tst Circuit for I OFF 2006/10/11 Rv1.2 Champion Microlctronic Corporation Pag 6

7 TYPIC CHRCTRISTICS Cathod Currnt vs. Cathod oltag Cathod Currnt vs. Cathod oltag Rf. Input oltag vs. Fr-ir Tmpratur Rf. Input Currnt vs. Fr-ir Tmpratur I K -Cathod Currnt (m) Stal Staility Boundray Conditions B C -oad Capacitanc(uF) C Stal 2006/10/11 Rv1.2 Champion Microlctronic Corporation Pag 7

8 PPICTION INFORMTION BTT R* O BTT R1 0.1% RF R2 0.1% Input th = 2.5 O on 2 off BTT GN O = (1 + R1/R2) RF Not: R should provid 1m cathod currnt to th of minimum BTT Figur 4. Shunt Rgulator Figur 5. Singl Supply Comparator With Tmpratur compnsatd thrshold. BTT O BTT O R1 R1 R2 R2 C O = (1 + R1/R2) RF Figur 6. High-Currnt Shunt Rgulator Figur 7. Crowar Circuit 2006/10/11 Rv1.2 Champion Microlctronic Corporation Pag 8

9 PPICTION INFORMTION (continud) BTT O = 5/1.5 BTT M KΩ djust 243Ω 0.1% I O = RF/RS 243Ω 0.1% RS 0.1% Figur 8.Prcision 5, 1.5 Rgulator Figur 9. Prcision Constant Currnt Sink BTT IN 7805 OUT O BTT RC 0.1% I O Common R1 R1 R2 I OUT = ( RF /R C ) + I K R1 = BTT /((I O /h F ) + I K ) O = (1 + R1/R2) RF Min O = RF + 5 Figur 10. Output Control of a Thr-Trminal Fixd Rgulator Figur 11. Prcision Currnt imitr 2006/10/11 Rv1.2 Champion Microlctronic Corporation Pag 9

10 PCKG IMNSION TO-92 θ 1 1 θ θ1 1 1 θ1 SOT With Plating 1 Bas Mtal c c Sction B-B c c1 1 2 θ θ θ1 θ2 2 θ θ2 1 S Sction B-B /10/11 Rv1.2 Champion Microlctronic Corporation Pag 10

11 PCKG IMNSION (CONTINU) SOT With Plating 1 Bas Mtal c c Sction B-B c c θ θ θ1 θ2 2 θ θ2 1 S Sction B-B 1 SOT-89 1 φ1.0 H 5 1 C C 1 H /10/11 Rv1.2 Champion Microlctronic Corporation Pag 11

12 θ PCKG IMNSION (CONTINU) 8-PIN SOP (S08) PIN 1 I θ 2006/10/11 Rv1.2 Champion Microlctronic Corporation Pag 12

13 NUMBRING SCHM Ordring Numr: XYZ (not1) Ordring Numr: GXYZ (not2) not1: X : Suffix for Rfrnc oltag Tolranc (not 3) Y : Suffix for Tmpratur Rang (not 4) Z : Suffix for Packag Typ (not 5) not2: G : Suffix for P Fr Product X : Suffix for Rfrnc oltag Tolranc (not 3) Y : Suffix for Tmpratur Rang (not 4) Z : Suffix for Packag Typ (not 5) not 3: s th Rfrnc oltag Tolranc Suffix Tal not 4: Y= C: 0 ~+105 not 5: Z is singl alphat with or without digits M233 : SOT-23-3 (TR only) M2R3: SOT-23-3 (TR only) ut pin assignmnt is diffrnt with M233 M235 : SOT-23-5 (TR only) M89:SOT-89(TR only) N:TO-92(T only) S:SOP-8(TR only) Rfrnc oltag Tolranc Suffix Tal Tolranc Suffix 0.5% 1% B 1.5% 2006/10/11 Rv1.2 Champion Microlctronic Corporation Pag 13

14 IMPORTNT NOTIC Champion Microlctronic Corporation (CMC) rsrvs th right to mak changs to its products or to discontinu any intgratd circuit product or srvic without notic, and adviss its customrs to otain th latst vrsion of rlvant information to vrify, for placing ordrs, that th information ing rlid on is currnt. fw applications using intgratd circuit products may involv potntial risks of dath, prsonal injury, or svr proprty or nvironmntal damag. CMC intgratd circuit products ar not dsignd, intndd, authorizd, or warrantd to suital for us in lif-support applications, dvics or systms or othr critical applications. Us of CMC products in such applications is undrstood to fully at th risk of th customr. In ordr to minimiz risks associatd with th customr s applications, th customr should provid adquat dsign and oprating safguards. HsinChu Hadquartr 5F, No. 11, Park vnu II, Scinc-Basd Industrial Park, HsinChu City, Taiwan Sals & Markting 7F-6, No.32, Sc. 1, Chnggong Rd., Nangang istrict, Taipi City 115, Taiwan, R.O.C. T : T : FX: F X : /10/11 Rv1.2 Champion Microlctronic Corporation Pag 14