M51903L MITSUBISHI | Alldatasheet
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6249826 MITSUBISHI] ELEK (LINEAR) ___. 80C 09161 Dd’ T-52-13-07 -oL C8 SHIRE asP ES LED LINEAR LEVEL INDICATOR | DESCRIPTION” = |, The MBI903L, Is @ semiconductor integrated clrcult consist-. | PIN CONFIGURATION (TOP VIEW) Ing of a circuit designed for use in level meters. It Is cap- ” able of driving 5 LEDs to create a bar-type display. In . ly ourrur 3 accordance with the input level, the uppermost LED bright- ness varies to form a linear indicator, making this device {2} ourrur 2 ideal for use in signal meters and VU meters. A low-voltage 7 [e] OuTPUT 1 reference power supply is built in, so that the only external . Fa 13) Voc components required are "LEDs, resistors and capacitors. = . = fa) INPUT FEATURES [3] GNo © Bar-type display of input level using 5 LEDs [2 ourrur 6 © The uppermost LED brightness varies linearly with ~ Ly oureur 4 respect to the input level resulting in a high-resolution display with no radiation. Outline 8P5 © By changing the external resistance values, the LED brightness can be adjusted **+-"---+++-+-" [o=15mA(max.) © Operates over a wide range of supply voltages crstusstusesitnneiusinuniiunenneenseneennenes Vgg=4~18V . P : © Built-in reference supply © High input impedance srr yy =100nA (typ.) . APPLICATION : ~~ Signal meters; VU meters, tuning meters, and other general eS . display applications Qe > RECOMMENDED OPERATING CONDITIONS ‘Supply voltage range svss-sseeeseeseeeneereeenees AN TBV 8-pin molded plastic SIP Rated supply voltage---scsersesesteteeeeseseseeees 1OV ; BLOCK DIAGRAM = : . won >t] Se | Hier] db eums | EP E Detector k DETECTOR L Berecton cn : a 8-6 % MITSUBISHI ° . : ELECTRIC
: oT EY. DRE ves Bae ay LED LINEAR LEVEL INDICATOR “ABSOLUTE MAXIMUM RATINGS (1e=25%, untess otnerwise noted): 9 on + So Simos] Parmar eis Pee A Contes oe eT pts Tit] [vec [swine a ee ————e a en ae a) ee Powe despation (copper clad are 45 650m, thickness 25, board teekness 2.0mm) [Ker | owsin | tomes | A [tei | swome tempore tomes ELECTRICAL CHARACTERISTICS (12-25, Veo=210V, untoss otherwise noted) cond Test conditions [se Tone Te | [veo | Sera Pe a a [iw | wetonen | Ware wen | ve | | a [rea [0 ov] [Miva [Tours teoarvevorwm PL a8 | taro [eo |v] Note 1, Current flowing from pin @) is taken as positive current. . TYPICAL CHARACTERISTICS (ta=25%, voc 10V. nies otherwise noted) ° {Fo the fotowieg typical characteristic, Fin the aplication example (1 is 1.5KAL and red GAAIAS LEDs re used for measorements) F THERMAL DERATING CIRCUIT CURRENT VS (MAXIMUM RATING) SUPPLY VOLTAGE 1000-7) Device alone . 8 in =omv | fat With the m5 19031 soldered oa printed = circuit board (copper-clad area 4.5 x 6.5em,| E 800 thickness 36, board thickness 2.0mm) ~ z 6 7 EBS , | | $ 2. z B =, z SN] 5 Fa 3 i Nn g .
200 S 5
; 1 ty ; . > 2 50 cy 100 125, oO 5 10 15 20 AMBIENT TEMPERATURE Ta (0) ° INPUT VOLTAGE (V) : a MITSUBISHI : : es Tae - 8-7
ig peegy fe sara oF LED LINEAR LEVEL INDICATOR WE $e ene) CIRCUIT CURRENT VS 738 INPUT CURRENT VS a 2 oS ses". 2 INPUT VOLTAGE ke SUPPLY VOLTAGE |. - : iz ELL 4+] gm : Sr FA k = ae | 3 3 40) % 700 800 12007600 °F 5 10 is 20 INPUT VOLTAGE Vin (mV) SUPPLY VOLTAGE Vec (V) PIN@OUTPUT CURRENT PIN@OUTPUT CURRENT VS INPUT VOLTAGE VS INPUT VOLTAGE ~ 10) 10 24 — z 4 — . £ Ga . g i B . ZA i We z [7 |__} 41 ‘Zep | pee 200 “300 200303 G0 50 “S00 600 70 a0 INPUT VOLTAGE Vin (mV) INPUT VOLTAGE Vow (mv) . PIN@OUTPUT CURRENT . PIN@OUTPUT CURRENT VS INPUT VOLTAGE VS INPUT VOLTAGE 10 10 z | qf — ‘ PL iA EL we TY : 7 ‘47 TZ 600 700 800 300 1000 800 900 1000, 1100 1200 © INPUT VOLTAGE Vin (mv) INPUT VOLTAGE Vin (mV) Se % MITSUBISHI 8-8 ELECTRIC
Be BeSP EE ges SORES Ey “0 7% LED LINEAR LEVEL INDICATOR os ote Gas - cap She ats PIN@OUTPUT CURRENT VS ~ . +2 Js. PIN@OUTPUT CURRENT INPUT VOLTAGE TEMPERATURE , °*~ Cea tuts... VS INPUT VOLTAGE ho onli CHARACTERISTICS ras 10) 19) oa ta=- 20T oe 3 nae 2 joa q y 4 3 wi4 P| | Ass : 3 demaan| ) Y_ | 5 oy PL ITA Zam 3 3 LL Be rt TL i 4 Z| Le | . 1000 1100 1200 1300 1400 200 300 400 S00 600 . INPUT VOLTAGE Vin (mv) . INPUT VOLTAGE Vi (mv) PIN@OUTPUT CURRENT VS PIN@OUTPUT CURRENT VS INPUT VOLTAGE TEMPERATURE INPUT VOLTAGE TEMPERATURE CHARACTERISTICS __ CHARACTERISTICS \\or——=—Ta=—200 ere ees 7 se Tose se = |—-— pe g |= se <i - 4 zg 4 — 6 a” yaa : | Poo PT RTE) alee d_A1 t_e| 00 $00,600 700800 00 Tod 800 S00 v000 INPUT VOLTAGE Vin (mV) INPUT VOLTAGE Vin (mv) : PIN@ OUTPUT CURRENT Vs PIN@OUTPUT CURRENT VS INPUT VOLTAGE TEMPERATURE INPUT VOLTAGE TEMPERATURE CHARACTERISTICS CHARACTERISTICS ee se z 4 z 4 z y z ol Zl ol B 800-300 100011001200 000 “tt00 12001800 Ta00 . INPUT VOLTAGE Vix (mv) : INPUT VOLTAGE Vins (mV) a titgueiset me ELECTRIC
Re OE ie Ra meas ae : LED LINEAR LEVEL INDICATOR - APPLICATION EXAMPLES oc .cj-00 22 00) BGS ers . ° s © Voc ‘ : @HSe® mL Bt08 a ©O0OO® . “nv © fm | © kB Note 1. Thevalueof Ri ischoen to sult the LED devices tbe Used. The maximum LED erent IV-D forward voltae crop 1.0V/R = 15mA (2) M51903L used in cascade connection . (i) Circuit for a maximum input voltage of 7V PED #10 eae ] p ODOO® OOOO® © ° © © “ 108 wweur © Ry , | 6) ® : oxo: VR ts fm [| 4 i Note 1. Resitance Ry isoacted 3 thatthe un-n vologe fr LED #58 approximately 62OmV higher thn a of LED #5 {3} Circuit for a maximum input voltage of 2.3V : QOWPV@® OOOY®D Va mZ _ ° ° | Ei; i “ a LI ‘i — - nf ° aire ion a dihy Z 2802291 . Note 1. Resistance A selected so that the turn-on voltage for LED #6 is approximately 210mV higher than that of LED #5. ° 8-10 : % MITSUBISHI . ELECTRIC