M5293L MITSUBISHI | Alldatasheet
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Technical content
MITSUBISHI <LINEAR ICs> FLUORESCENT CHARACTER DISPLAY TUBE (—32V FIXED-VOLTAGE POWER SUPPLY) IC
DESCRIPTION
The M5293L is a semiconductor integrated circuits that is PIN CONFIGURATION (TOP VIEW) designed as a constant-voltage negative power supply. Since this high-voltage type integrated circuits accepts a maximum [5] REFERENCE VOLTAGE input voltage of -60V and provides a fixed output voltage [4] on/OFF of —32V, it serves, for instance, as an ideal fluorescent [3] oureur character display tube drive power supply. As the output GROUND voltage is fixed inside the integrated circuits, only a capacitor is needed as the external part. Further, the use of a small-size J] spur 5-pin SIP assures high packaging density for power supply circuits. Outline 5P5T
FEATURES
Variable with an external resistor... Vo=-10~-50V © Built-in current-limiting circuit. © Built-in overheat protection circuit. APPLICATION CD players, VTR, and other general electronic equipment BLOCK DIAGRAM crouno (2) 5kO REFERENCE ' © Vorrace aKa K (3) outPut onorF (4) - 8 | inpur (1) MITSUBISHI 4—40 ate MSS .
MITSUBISHI <LINEAR ICs> FLUORESCENT CHARACTER DISPLAY TUBE (—32V FIXED-VOLTAGE POWER SUPPLY) IC _ 6 82V FIXED-VOLTAGE POWER SUPPLY) IC ABSOLUTE MAXIMUM RATINGS (ta=25°, unless otherwise noted) [=e re ee re Pa | Inteinatpower consumpvon Ss [Ke | Themmalseratng | Tames mr [oor | Operaing ambient wmparawre | es [stg | Storage temperaure | tes | ELECTRICAL CHARACTERISTICS (viw=—40v. lo=-10mA, Ta=25) [Min [te [Mex | Vin= = 40~—S0V [fos | 02! %v [Regto | LoadvanatonSSCSCS~*dC tment [ato |v [RR | Ropiorewcnonrato =| (One OtaF fe teore | Sof | ["Vno | Outputnose votage—SS*idtC ee too || 00] ves [Vow | Output cutotvetage id Onsvavescnd | | ft [vot | Reterencevorage | Cd gs | 8s [Vor | Inpuvoutout vohage diferent) ——s| = |TV TYPICAL CHARACTERISTIC THERMAL DERATING OUTPUT VOLTAGE VS. INPUT VOLTAGE 2°C _ [LITT] 2 rH | “sr Ct = ww :_ || Ae : PIN 2 ann : s [Tis ETT E500 N a —25| fh, i TVET 6 5 20 . 5 5 an . 2“ TAT TTT Fd N 5 x 2 aon z ‘| 5-10 Zz 100 3 & \\ 5) [| E : Ht TT tty = 6 N 0 0 25 50 75 100 125 Q —10—20 —30 —40 —50 —60 —70 —80 AMBIENT TEMPERATURE Ta (“C) INPUT VOLTAGE Vege (V) MITSUBISHI eters . 4—a1
MITSUBISHI <LINEAR ICs> MS293L FLUORESCENT CHARACTER DISPLAY TUBE (—32V FIXED-VOLTAGE POWER SUPPLY) IC CIRCUIT CURRENT VS. INPUT VOLTAGE RIPPLE REJECTION RATIO 4.0 807>-——— SA >. (ee ta ttt tg PTT era pot ttt tit CHIE pet ee CHR po ee GH eel > EEE “of LETT ET EHH Cotter, Poi INPUT VOLTAGE Vec (V) FREQUENCY f (Hz) OUTPUT VOLTAGE VS. REFERENCE VOLTAGE VS. AMBIENT TEMPERATURE AMBIENT TEMPERATURE “fee “ELL —35 flo=—10mA s- GS ee eSCCCCeTe eee CCC cee SCOCOAA sce SCC Coo —40—20 0 20 40 60 80 100 120 —40—20 0 20 40 60 80 100 120 AMBIENT TEMPERATURE Ta (°C) AMBIENT TEMPERATURE Ty (°C) CIRCUIT CURRENT VS. AMBIENT TEMPERATURE “eee TTT CC Co =SCCCC ee COOP CCC eeCcccooo So Beceuseta oan 20 0 20 40 60 80 100 120 AMBIENT TEMPERATURE Ta (°C) ern MITSUBISHI 4—az pales .
MITSUBISHI <LINEAR ICs> FLUORESCENT CHARACTER DISPLAY TUBE (—32V FIXED-VOLTAGE POWER SUPPLY) IC SSN APPLICATION EXAMPLES (1) Standard Application Circuit Example ps When terminal @ is set at the ground level! (0 to -0.3V), 9 an output voltage of OV can be obtained. © @ 2 Crer Cin Com ° © 104 SL — Connection of this capacitor provides ripple rejection ratio improvement, output noise voltage improvement, and Mo 1) M5293L. G3) Sy, output voltage rise time constant adjustment (use a 1000pF ~. to 1uF capacitor).
72 Cret
S + Ole NOTE: Ensure that the capacitance of the employed capacitor does not significantly vary with the temperature. (2) Output Voltage Variation Procedure Cin Oo) ar Wn SP Vora Blt iy oF Dyaat)) VREF 5k//3.: “s © © “ve ern - Ti Cret Re 1 1 Oo ® + 0.1 Ft Vv (YO 1) «8k /73.aK 27K 3. 3k, Ver BUILT-IN RESISTORS BETWEEN TERMINALS @ AND ©): SkQ BETWEEN TERMINALS @) AND ©): 27k a MITSUBISHI Ja liees . 4—43