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| BL6502 500:1 0.1% 0.1% REVPFAULT 2.5V8% 30ppm/ 5V 25mW 0.35um CMOS BL6502 BL6502 BL6502 12.5% Pin15FAULT BL6502 Pin18CF Pin20 F1 Pin19F2 Pin16REVP BL6502 5%Ib Ib=5A 0.1% VDD V1A V1B V1N V2N V2P NC 1 2 3 20 19 F1 F2 CF NC VREF input contron voltage reference internal oscillator AVDD power detector 18 4 17 5 6 BL6502 16 15 REVP FAULT G0 G1 S0 S1 V1A V1B V1N V2P V2N BL6502 high pass filter high pass filter digital multiplic ation low pass filter digital to frequency and output current sampling analog to digital analog to digital 7 8 9 10 14 13 12 11 voltage sampling FAULT REVP CF F1 F2 GND VREF SCF logic contron G0 G1 SCF S0 S1 DIP/SSOP 20 BL6502 http://www.belling.com.cn -1Total 11 Pages 8/9/2006 BL6502 1 23 4 56 7 8 9 10 1112 1314 15 16 17 18 VDD V1AV1B V1N V2NV2P NC GND VREF SCF S1S0 G1G0 FAULT REVP NC CF +5V 5V5% V1N 660mV 660mV 2.58% 30ppm/C 2.5V S1S0 CF S1S0 V1N V1B 12.5% V1N V1B FAULT 90 F1F2 BL6502 1920 F1F2 ( T = 25 ) VDD ( GND) ( GND) DIP20 VDD Vv Vi Topr Tstr -0.3~+7(max) VSS+0.5VvVDD-0.5 VSS+0.5ViVDD-0.5 -20~+70 -55~+150 400 V V V mW T=25,VDD= 5V, ) 1 2 G0,G1,SCF,S0,S1 http://www.belling.com.cn IVDD Pin1 Pin14,13 ,12,11,10 2 5 6.5 mA -2Total 11 Pages 8/9/2006 BL6502 4 F1,F2 5 CF,REVP,FAULT 6 7 V1A,V1B,V1N V2N,V2P 8 1 2 8 16 37C (PF=0.8 ) 60C (PF=0.5 ) 9 ISTART Ib=5A ,C=3200, cos=1 110mV 16 10 % ENP Vv=110mV, V(I)=2mV, cos=1 Vv=110mV, V(I)=2mV, cos=-1 Pin18 Pin18 Pin18 Pin18 ENL1 ENL2 ENL8 ENL16 660mV; 660mV 500:1 Pin18 Pin18 Pin18 Pin18 VAIN Pin2,3,4, 5,6 VOH2 VOL2 IO2 Vref VDD=5V Pin9 IH=10mA IL=10mA VOH1 VOL1 IO1 Pin18,16 ,15 IH=10mA IL=10mA VIH VIL CIN Pin20,19 VDD=5V 2 1 10 V V pF 4.4 0.5 10 V V mA 4.4 0.5 10 2.3 30 2.5 30 2.7 60 V V MA V ppm/C 1 330 6 10 V Kohm pF 0.1 0.1 0.1 0.1 % % % % 0.1 0.1 0.2%Ib 0.3 0.3 % % A 0.3 % http://www.belling.com.cn -3Total 11 Pages 8/9/2006 BL6502 11 12 13 ( ) 1% 5 1 4 4.1 % % V Gain error Vdown 3.5V~5V Pin18 Pin18 Pin18 0.2 3.9 BL6502 Pin6 V2PPin5V2N V(V)110mV cos=1 Pin3V1B Pin4V1N V(I) 5%Ib~800%Ib Ib 0.1% eNL%[X %-Ib %/1+Ib %]*100% 2 C=3200 Ib=5Acos=1V(V)=110mV5Ib Pin18CF 3% V(V)=110mVV(I) Ib BL6502 eNP%=|[eN%-eP%/1+eP%]*100%| eP%eN% 4(/) Pin6V2P Pin5V2N V(V) Pin3V1B Pin4V1N V(I) V(V)*V(I)*cos, 5 6 7 4 VDD=5V GND=0V-20~+70C t1 144ms F1 F2 F1F2 144ms F1 550ms F2 F1F2 F1F2 BL6502 t2 71ms F1 F2 CF CF 71msCF 180ms CF -4Total 11 Pages 8/9/2006 t2 t3 t4 http://www.belling.com.cn BL6502 t5 t6 CLKIN/4 F1F2 SCF=0S1=S0=1 CF 20us CF CF F1F2 BL6502 p (t ) = V cos( wt ) x I cos( wt + ) =0 : p (t ) = 0 : VI (1 + cos(2 wt ) 2 p (t ) = V cos( wt ) x I cos( wt + ) = V cos( wt ) x [I cos( wt ) cos() + sin( wt ) sin( )] VI (1 + cos(2 wt )) cos( ) + VI cos( wt ) sin( wt ) sin() 2 VI VI = (1 + cos(2 wt )) cos( ) + sin(2 wt ) sin() 2 2 = p(t) p(t) 2 http://www.belling.com.cn -5Total 11 Pages 8/9/2006 BL6502 I - - V p(t) V*I p(t)=i(t)*v(t) v(t)=V*cos(wt) i(t)=I*cos(wt) p(t)= t V*I 2 {1+cos(2wt)} CF F1 F2 V*I 2 V*I 2 t p(t) p(t) 1Hz - cos() Vos Ios, 1 =0 p(t)=(Vcos(wt)+Vos)*(Icos+Ios) =V*I/2+Vos*Ios+Vos*Icos(wt)+Ios*Vcos(wt)+(V*I)/2*cos(2wt) Ios=0 p(t)=(Vcos(wt)+Vos)*(Icos+0) =V*I/2+Vos*0+Vos*Icos(wt)+0*Vcos(wt)+(V*I)/2*cos(2wt) =V*I/2+Vos*Icos(wt)+(V*I)/2*cos(2wt) Vos*Ios Vos*I+Ios*V http://www.belling.com.cn -6Total 11 Pages 8/9/2006 BL6502 w 660mV 100mV 0V V1 +660mV V2P + - 660mV V1 V2N V2 V2 100mV -660mV AGND PT CT RF V2P CF RF CF + - 660mV AGND V2N AGND AGND Ra CF Rb AGND AGND Rv 660mV V2P AGND RF V2N CF AGND AGND + - Ra >> RF Rb+Rv=RF 660mV 100mV 0V http://www.belling.com.cn -7Total 11 Pages 8/9/2006 BL6502 V1 +660mV GAIN V1A + - 660mV V1 V2 V1N 100mV -660mV GAIN V2 V1 - V1B AGND + CT Rb 660mV/gain PT CT RF V1A + - Rb 660mV GAIN CF IP IN V1N AGND Rb 660mV GAIN RF CF + CT V1B CF Ra Rb AGND Ra >> RF Rb+Rv=RF Rv 660mV V1A + - AGND IP IN Rb V1N AGND 660mV GAIN RF CF + CT V1B FAULT BL6502 12.5%Pin15FAULT BL6502 V1A V2 V1A V1B 12.5 FAULT V1B V1A BL6502 V1B V1A V1B V1A V1B V1B 87.5V1A FAULT V1A http://www.belling.com.cn -8Total 11 Pages 8/9/2006 BL6502 V1A V1B 0V V1A V1B V1N V1B < 87.5% V1A FAULT V1A V1B V1B 114V1A FAULT V1B V1A 114V1B V1A V1A V1B 12.5V1BFAULT V1B V1A 0V V1A V1B V1N V1A < 87.5% V1B FAULT BL6502 F1F2 F1F2 Freq = 5.74 x V (V ) x V ( I ) x gain x FZ 2 VREF Freq---- F1F2 V(V)---- V(I)---- Gain---- G0 G1 Vref----2.58% Fz---- S0 S1 S1 0 0 1 1 S0 0 1 0 1 Fz(Hz) 1.7 3.4 6.8 13.6 CLKIN/2^21 CLKIN/2^20 CLKIN/2^19 CLKIN/2^18 Pin10SCF Pin11S1 Pin12S0 BL6502 +5V0VPin18CF Pin20F1 Pin19F2 http://www.belling.com.cn -9Total 11 Pages 8/9/2006 BL6502 1 2 3 4 5 6 7 8 SCF 1 0 1 0 1 0 1 0 S1 0 0 0 0 1 1 1 1 S0 0 0 1 1 0 0 1 1 Pin10SCF Pin11S1 Pin12S0 CF F1,F2 128 64 64 32 32 16 16 8 G0G1 5V 0V 0 G1 1 1 0 0 G0 1 0 1 0 1 2 8 16 660mV 330mV 82mV 41mV 660mV 100mV 660mV 100mV CFF1F2 SCF S1 S0 Fz F1,F2 (Hz) 1 0 1 0 1 0 1 0 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 1.7 1.7 3.4 3.4 6.8 6.8 13.6 13.6 0.68 0.68 1.36 1.36 2.72 2.72 5.44 5.44 0.34 0.34 0.68 0.68 1.36 1.36 2.72 2.72 CF (Hz) 128xF1,F2=87.04 64xF1,F2=43.52 64xF1,F2=87.04 32xF1,F2=43.52 32xF1,F2=87.04 16xF1,F2=43.52 16xF1,F2=87.04 8xF1,F2=43.52 128xF1,F2=43.52 64xF1,F2=21.76 64xF1,F2=43.52 32xF1,F2=21.76 32xF1,F2=43.52 16xF1,F2=21.76 16xF1,F2=43.52 8xF1,F2=21.76 http://www.belling.com.cn - 10 Total 11 Pages 8/9/2006 BL6502 1DIP20 2SSOP20 http://www.belling.com.cn - 11 Total 11 Pages 8/9/2006 |
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