LRC LESHAN RADIO COMPANY,LTD. LR431 LINEAR INTEGRATED CIRCUIT 352*5$00$%/(35(&,6,21 5()(5(1&( '(6&5,37,21 7KH LRC LR LV D WKUHHWHUPLQDO DGMXVWDEOH UHJXODWRU ZLWK D JXDUDQWHHG WKHUPDO VWDELOLW\ RYHU DSSOLFDEOH WHPSHUDWXUH UDQJHV 7KH RXWSXW YROWDJH PD\ EH VHW WR DQ\ YDOXH EHWZHHQ 9UHIDSSUR[LPDWHO\ 9 DQG 9 ZLWK WZR H[WHUQDO UHVLVWRUV ,W SURYLGHV YHU\ ZLGH DSSOLFDWLRQV LQFOXGLQJ VKXQW UHJXODWRU VHULHV UHJXODWRU VZLWFKLQJ UHJXODWRUYROWDJHUHIHUHQFHDQGRWKHUV 1 23 72 )($785(6 3URJUDPPDEOHRXWSXW9ROWDJHWR9 /RZG\QDPLFRXWSXWLPSHGDQFHΩ. 6LQNFXUUHQWFDSDELOLW\RIWRP$ (TXLYDOHQWIXOOUDQJHWHPSHUDWXUHFRHIILFLHQWRISSP°& W\SLFDOIRURSHUDWLRQRYHUIXOOUDWHG RSHUDWLQJWHPSHUDWXUH UDQJH SOT-23 72 5HI $QRGH &DWKRGH SOT-23 1: Ref; 2: Cathode; 3: Anode %/2&.',$*5$0 &$7+2'( 5()(5(1&( CATHODE(K) REFERENCE(R) 99UHI ANODE(A) $12'( 1/6 LRC LESHAN RADIO COMPANY,LTD. LR431 LINEAR INTEGRATED CIRCUIT A%62LUTE 0A;I0U0 RATING6 2SHUDWLQJ WHPSHUDWXUH UDQJH DSSOLHV XQOHVV RWKHUZLVH VSHFLILHG 3ARA0ETER 6<0%2L 9ALUE UNIT 9.A I.A IUHI TM TRSU TVWJ 3 1 a 1 a 1 1 4 a 70 a 1 9 PA PA °C °C °C CDWKRGH 9ROWDJH CDWKRGH CXUUHQW RDQJHCRQWLQXRXV RHIHUHQFH IQSXW CXUUHQW RDQJH 2SHUDWLQJ -XQFWLRQ THPSHUDWXUH 2SHUDWLQJ APELHQW THPSHUDWXUH 6WRUDJH THPSHUDWXUH THPSHUDWXUH REC200ENDED 23ERATING C2NDITI2N6 3ARA0ETER 6<0%2L 0IN 9.A I.A 9RE) 1 CDWKRGH 9ROWDJH CDWKRGH CXUUHQW ELECTRICAL C+ARACTERI6TIC6 TD 3ARA0ETER T<3 DHYLDWLRQ RI UHIHUHQFH IQSXW 9ROWDJH 2YHU WHPSHUDWXUHQRWH 1 RDWLR RI CKDQJH LQ RHIHUHQFH IQSXW 9ROWDJH WR WKH CKDQJH LQ CDWKRGH 9ROWDJH RHIHUHQFH IQSXW CXUUHQW DHYLDWLRQ RI RHIHUHQFH IQSXW CXUUHQW 2YHU )XOO THPSHUDWXUH RDQJH 0LQLPXP CDWKRGH CXUUHQW IRU RHJXODWLRQ 2II6WDWH CDWKRGH CXUUHQW D\QDPLF IPSHGDQFH UNIT 3 1 9 PA °C XQOHVV RWKHUZLVH VSHFLILHG 6<0%2L RHIHUHQFH IQSXW 9ROWDJH 0A; 0IN TE6T C2NDITI2N6 T<3 0A; UNIT 9UHI 9.A 9RE)I.A 1PA 0 ∆9UHI∆T 9.A 9RE)I.A 1PA T0IN TA T0A; ∆9.A 19a9RE) ∆9.A 39a19 I.A 1PA 4 1 P9 1 P99 1 4 4 1 µA µA 4 1 PA 1 1 µA Ω ∆9UHI ∆9.A IUHI ∆IUHI∆T I.APLQ I .A2)) =.A I.A 1PAR1 1NΩ R ∞ I.A 1PAR1 1NΩ R ∞ TA IXOO THPSHUDWXUH 9.A 9RE) 9.A 399RE) 9.A 9RE) I.A 1 WR 1PA I≤1N+] 9 NRWHT0IN °CT0A; °C CLASSIFICATION OF Vref AND PACKAGE Device LR431A Rank 0.5% Range(V) 2.487~2.512 Marking LR431A Package TO-92 LR431B 1% LR431C 2% 2.475~2.525 LR431B TO-92 2.450~2.550 LR431C TO-92 LR431ALT1 0.5% 2.487~2.512 RA SOT-23 LR431BLT1 1% 2.475~2.525 RB SOT-23 LR431CLT1 2% 2.450~2.550 RC SOT-23 2/6 LRC LESHAN RADIO COMPANY,LTD. LR431 LINEAR INTEGRATED CIRCUIT T<3ICAL 3ER)2R0ANCE C+ARACTERI6TIC6 Fig 1 Cathode Current Vs Cathode Voltage )LJ CDWKRGH CXUUHQW 9V CDWKRGH 9ROWDJH TD C 9.A 9RE) 1 TD C 9.A 9RE) CDWKRGH CXUUHQW PA CDWKRGH CXUUHQW PA 1 4 I.APLQ 1 1 1 3 1 )LJ 3 CKDQJH LQ RHIHUHQFH IQSXW 9ROWDJH 9V CDWKRGH YROWDJH I.A 1PA TD C 1 1 3 3 TD C 4 3 1 1 3 3 4 1 )LJ D\QDPLF IPSHGDQFH 9V )UHTXHQF\ 4 9ROWDJH APSOLILFDWLRQ G% IPSHGDQFH ȍ" 3 )LJ 6PDOO 6LJQDO 9ROWDJH APSOLILFDWLRQ 9V )UHTXHQF\ TD C I.A PA WR 1PA 1 TLPH PV CDWKRGH 9ROWDJH 9 1 3 1 4 1 1 )LJ 4 3XOVH RHVSRQVH IQSXW DQG 2XWSXW 9ROWDJH 9 CKDQJH IQ RHIHUHQFH INSXW 9ROWDJH P9 CDWKRGH 9ROWDJH 9 CDWKRGH 9ROWDJH 9 1 TD C I.A 1PA 4 3 1 1 1 1 3 1 4 1 )UHTXHQF\ +] 1 1 1 3 1 1 4 1 1 1 )UHTXHQF\ +] 3/6 LRC LESHAN RADIO COMPANY,LTD. LR431 LINEAR INTEGRATED CIRCUIT TE6T CIRCUIT 9.A IN3UT 9.A IN3UT I.A 9.A IN3UT I.A I.A2)) R1 IRE) LR431 LR431 R 9RE) LR431 9RE) 9.A 9RE)1R1RIRE)R1 )LJ 7 THVW CLUFXLW )RU 9.A 9RE) )LJ 8 THVW CLUFXLW IRU 9.A ! 9RE) )LJ 9 THVW CLUFXLW )RU I.A2)) A33LICATI2N CIRCUIT 9L 9L 9R IN 9L LR C2002N R1 R1 9RE) R1 9RE) 9RE) R R R LR431 LR431 )LJ 1 6KXWGRZQ RHJXODWRU 9L LR431 9R 1R1R9RE) 9R 1R1R9RE) 9R 1R1R9RE) )LJ 11 2XWSXW CRQWURO RI D TKUHH THUPLQDO )L[HG RHJXODWRU IR 9R 9R 9R 2UT )LJ 1 +LJKHUFXUUHQW 6KXQW RHJXODWRU IR 9L 9R RCL RV RV LR431 LR431 I2 9RE)R6 )LJ 13 CRQVWDQWFXUUHQW 6LQN R6 9RE)RCL )LJ 14 CXUUHQW LLPLWLQJ RU CXUUHQW 6RXUFH 4/6 LRC LESHAN RADIO COMPANY,LTD. TO-92 PACKAGE OUTLINE DIMENSIONS D1 E C A A1 D b L ¶ e e1 Symbol Dimensions In Millimeters Dimensions In Inches Min Max Min Max A 3.300 3.700 0.130 0.146 A1 1.100 1.400 0.043 0.055 b 0.380 0.550 0.015 0.022 c 0.360 0.510 0.014 0.020 D 4.400 4.700 0.173 0.185 D1 3.430 E 4.300 0.185 0.169 1.270TYP e e1 0.135 4.700 0.050TYP 2.440 2.640 0.096 0.104 14.100 14.500 0.555 0.571 0.063 1.600 ¶ 0.000 0.380 0.000 0.015 5/6 LRC LESHAN RADIO COMPANY,LTD. SOT-23 PACKAGE OUTLINE DIMENSIONS D © b L E E1 L1 0.2 e C Symbol A A1 A2 e1 Dimensions In Millimeters Dimensions In Inches Min Max Min Max A 0.900 1.100 0.035 0.043 A1 0.000 0.100 0.000 0.004 A2 0.900 1.000 0.035 0.039 b 0.300 0.500 0.012 0.020 c 0.080 0.150 0.003 0.006 D 2.800 3.100 0.110 0.118 E 1.200 1.610 0.047 0.055 E1 2.250 2.550 0.089 e e1 1.800 L 0.100 0.037TPY 0.950TPY 2.000 0.071 0.550REF 0.079 0.022REF L1 0.300 0.500 0.012 0.020 © 0° 8° 0° 8° 6/6