M5292P MITSUBISHI | Alldatasheet
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MITSUBISHI <Dig./Ana. INTERFACE> M5292P,FP +12V TRACKING REGULATOR WITH RESET CIRCUIT DESCRIPTION on ace PIN CONFIGURATION (TOP VIEW) M5292 is a semiconductor integrated circuit designed for voltage regulator which is dual tracking type (positive/ coutectoa ~¥e* Veco negative output voltage) with system reset circuit. OUTPUT (-) [15] EMITTER OUTPUT (+) Since the output voltage is fixed inside, User can omit the EMITTER OUTPUT (-) tna] SossecTer Outside resistors, and this IC includes the system reset circuit ve [a] OETECTION for detecting the abnormal status of Power Supply. When ourrur caw fst ourpur wiv) Power Supply of system is in abnormal status, this IC sends BALANCE ' the system reset output (Low) to the MPU/CPU, so User can aosustwent LS HL] REFERENCE INPUT make the system operate safely. JOELAY CAPACITANCE [10] ON/OFF aeser outeur [B| [a} ono
FEATURES
© High input voltages:+-+-10 restric £20 Outline 16P4 @ Fixed output voltages: eeceeeesesne Mg= £12V @ Internal system reset circuit (with hysteresis) Vee [i lia] Veo Vee detectable voltag 4.2 OUTPUT &) EMITTER OUTPUT (+) (deray time is variable by connecting capacity at 7pin ewit1en ovrtur t COLLECTOA (6pin for the FP)) aan OUTPUT (+i © Current limiting circuit, thermal protection circuit ourrur (-12vi [4] DETECTION © Capable of ON/OFF contro! (10pin) apietwens 3] [12] outPuT (+12v) © Very Low input-output voltage differential operation by DeLay capacitance [6] [iT] REFERENCE INPUT using transistor RESET OUTPUT [10] on/OFF @ Variable output voltage (with external resistors connected ne [8] [3] cno between terminals { and GND and between positive output terminals). Outline 16P28-A NC: NO CONNECTION APPLICATION Dual power supply for CD players and stereo set pre-/main- amplifiers BLOCK DIAGRAM emitter — coLLector OUTPUT OELAY OUTPUT (4) OUTPUT [-) DETECTION 12) CAPACITANCE Q El REFEREN — ICE 1 x5] RESET | {ie O oureur perenne OVERREAT Be} LIMITER PROTECTION mw Or ON/OFF ()}—JONTROE () satance ADJUSTMENT] ciwiren Vee EMITTER COLLECTOR NC OUTPUT OUTPUT (—} OUTPUT (-) {(-12V) MITSUBISHI ae ELECTRIC as
MITSUBISHI <Dig./Ana. INTERFACE> MS292P,FP +12V TRACKING REGULATOR WITH RESET CIRCUIT ABSOLUTE MAXIMUM RATINGS (1a=25°, uniess otherwise noted) _ Parameter Conditions Unit Supp voltage =20(40) v re ae | Pa | Internal power consumption 1.0(P)/0.55(FP) ELECTRICAL CHARACTERISTICS (ta=25%. Voc= #15V, i= +10mA, unless otherwise steted) Symbol Paramet Test condi Unit [Min [Wo [Max | log [crew current | vig sy Eo eo Ta] REGULATOR PART Symbol , Test conde yb arameter jest conditions [Mn [ive | Avo ___| Postive/negatwve voltage vackng ; [os] 2) % | Input voltage varaton Vie 215-2 18V [ foeosl 02 Load variation i =0-20mA es | RESET PART ‘Symbol Parameter Test conditions Unit fp — Vs Detected voltage _ [3.95 [a2 [eas |v | ‘oa Deiay wmne Ca=0.14F posta [a | ms | Vaai | Output sotwravon vorage Tsink= 3A [fee foal v_ Note: The employed measurement crcut conforms ta application orcurt exampla (1) 7-46 ate MTSUES
MITSUBISHI <Dig./Ana. INTERFACE> MS292P,FP +12V TRACKING REGULATOR WITH RESET CIRCUIT APPLICATION EXAMPLES Cc REF (1) Standard Application Circuit Example Connection of this capacitor gives the following charac- teristics.
1 The rise time of the output voltage can be adjusted
+Vee DETECTION (slowed) fe) somes 2 The ripple rejection ratio is improved. 5V ic 3 Output noise voltage is reduced down to 1/10 of three yi terminal regulator IC 47 uF @ ty HF + H— 2200? ? we cba be i [re] [i] 2] fu} fro] [I FV co TER COLLECTOR cevection +¥o RFFERENCE ON/OFF GND COLLECTOR EMITTER DeLay RESET —Vec ouTPUT (=) OUTPUT I~) NC —Vo_ BALANCE CAPACITANCE OUTPUT] LJ L4] Ls] Le] TO BE CONNECTED TO A MICROCOMPUTER tt Tora OF OTHER RESET TERMINAL £ } Ca 47ur T+ 47 uF fh The output is cut off when 10pin is con- + nected to the GND terminal. Veco NOTE: Ensure that the capacitance of the employed capacitor does not significantly vary with the temperature. (2) Very Low Input/Output Voltage Differential Application Example ay. oe Stable operations are expected even if the input-output o. SUPPLY ' voltage. Differences are quite low as 0.2V 5 ler a aan Lie] ia] [o_o] “ve TER CO eCT OR perecriON vy FEERENCE ON/OFF GND COLLECTOR EMITTER pray RESET =Vee qurruti-y_oureuTin NC —Vo BALANCE capacitance OUTPUT LJ LT Ly Le Le] TO BE CONNECTED TO A MICROCOMPUTER + OR OTHER RESET TERMINAL, ° Ca 10kQ pF @ + 100,.F 2 J oo a Oe LRH 5v Vee A It is possible to drive 1A by connecting Power Transistor By shorting the 10pin to the GND, the output is shut down. ¢ MITSUBISHI A ELECTRIC 747
MITSUBISHI <Dig./Ana. INTERFACE> MS292P,FP +12V TRACKING REGULATOR WITH RESET CIRCUIT (3) Foldback Protection Circuit Application Example (M5292P Foldback System) The input/output voltage differential Vio should be ad- justed to be high enough considering the voltage difference developed at Ry. DETECTION ° von 2100 pF ° ° © | Ad oooaneonadg Hoe EMTTER, COLLECTOR pcrection +vo PEFERENCE ON/OFF GND COLLECTOR Emr r <vec_OunPuTer OUTPUT NO —Yo_ BALANCE capncitance OUTPUT — + a 10k ve iy Bari “ Ris a] sv ) Re} Oz, 100 nF —Vee When two protective transistors are employed, the M5292P/FP can provide foldback characteristic for pro- tection purposes. The |; and |; values are determined according to the external resistance. Yo R,+R = Rot Ry / Wa RRL x0-65 (A) Ry ' beht ag, X12 (A) 1 tb Ls Cases where ILipeax) = 12 * 1.0A and |, ~ 200mA Ry =Rr =4.09, Re=Ree=1.0KQ, Ry=Rs3=3.9kQ The required input/output voltage differential is 6V or greater. ¢ MITSUBISHI
748 ELECTRIC
MITSUBISHI <Dig./Ana. INTERFACE> MS292P,FP +12V TRACKING REGULATOR WITH RESET CIRCUIT a PRECAUTIONS 1. In adjusting the output voltage (use ‘1! pin) roU Ve ' | M5292P, FP is fixed the output voltage by inside resistors, a \\ but user can adjust it by using the outside resistor. © H | (inside resistor:2.4kQ 1) to 9, 21.7k2 @ toG) | 1 LoI-4 2. In adjusting the tracking voltage (use ()pin ( Spin on FP)) ) @) tee) ae VR ro | vR | { i Hi M5292P, FP is fixed the tracking voltage by inside resistor, | djust it by using the output resistor ow Ce i but user can adjust it by using p . “ ! ! ' {inside resistor:'2 to 6 6 to 5, 10k@ for the M5292P } t H j 1 2 to. § S to 4, 10k for the M5292FP Loi-4 Lod 3. Explaining figure of reset operation 5 a a a a) ey Ae Gy fox ge When the positive output voltage is normal, the Reset 5 5 output is High gs If it is lower than 4.2V, the Reset output is low t (delay time is variable by connecting capacity at 7pin (6pin for the FP)) o . toa= 7.0% 10**C (sec) Es pd] Itpdl C:delay time capacity Fd L © t a ¢ MITSUBISHI y WELECTRIC 749