MITSUBISHI <Dig./Ana. INTERFACE> MS294P SYSTEM RESET IC WITH LOW INPUT-OUTPUT VOLTAGE DIFFERENTIAL TYPE+SV REGURATOR, AND 3.0V REGULATOR FOR MUTE FUNCTION DESCRIPTION M5294P is a semiconductor integrated circuit designed for PIN CONFIGURATION (TOP VIEW) dual tracking type voltage regulator, which includes system reset circuit, and 3.0V regulator for mute function. Since the output voltage (5V, 3V) are fixed inside, and Voo1) +Voc(1) this IC includes pull-up registor (10kQ) of reset output, BALANCE REFERENCE User can omit the outside parts. +5V output is low power ADJUSTMENT VOLTAGE dissipation type, that is to say, this is able to operate even ig . : G + Voc l2) if input-output voltage difference is very low status such as No [4] ce 0.2V (@lg = 100mA). Therefore, User can shrink the input Voc(2) +Vo (2) PHASE transformer. COMPENSATION (6 | ON/OFF User can be prevent making a noise by means of operating VM Ca mute function before Power supply (+5V) of Amplifier starts Coa [8] [9] RST up, for 3.0V regulator for mute function starts up earlier than +5V output. Outline 16P4 FEATURES @ Fixed output voltage Note 1: Please use the capacitor not to depend on the ambient temperature. @ Power supply for mute function 2: Please connect -Vcell) and -Vee(2). +Veet) @ Very low input-output voltage differential operation and +Vcc (2), tVo(1) and +Vg(2), firmly each Current limiting circuit other. t6V output... 2.2.2.2 207. short circuit protection with current fold back mute output ............. short circuit protection @ Thermal protection circuit Capable on/off control (11?-pin terminal) @ Internal system reset circuit with pull-up registor, hysteresis detectable voltage .. 6... eee eee 3.9V (delay time is variable by connecting capacity at 7-pin terminal) APPLICATION CD, VCR and dual power supply power system EQUIVALENT CIRCUIT DIAGRAM +Vcc +5V BV Vv a\tVee 5 +3.0V cc + ref 13 14 12H15 t RESET REFERENCE OUTPUT VOLTAGE RESET DELAY CAPACITY GND BALANCE ADJUSTMENT ON/OFF ON/OFF ONTRO +5V DELAY CAPACITY THERMAL PROTECTION | 6 | PHASE Vec 5V Vec CONPENSATION MITSUBISHI 150 ELECTRICMITSUBISHI <Dig./Ana. INTERFACE> MS294P SYSTEM RESET IC WITH LOW INPUT-OUTPUT VOLTAGE DIFFERENTIAL TYPE+5V REGURATOR, AND 3.0V REGULATOR FOR MUTE FUNCTION ABSOLUTE MAXIMAM RATINGS (1a=25C. unless otherwise noted! Symbol Parameter Conditions Ratings Unit Voo Supply voltage + 15(30) Vv ILPa@ Positive load current + 200 mA ILPS Negative load current ~ 200 mA ILPmM Mute regulator load current 10 mA. VolF Input/Output voltage difference +10 Vv 1.0 Pd Power dissipation without sheet for Ww setting free fever 10.0 Ke Thermal derating Tazese without sheet for mW/ setting free fever Topr Ambient temperature 20~ +75 C Tstg Storage temperature 55--4125 c THERMAL DELATING 2000 * Condition as follow We) = 1600 N 2 * \ 8 1200 - * \ q @ N\ . 5 NOS =g00 J x a NQ N c \ \ = we @ 400 NEE oa A XN ~ N Say 0 CUPPER 0 25 50 75 10 12 YY 0 5 WZ H V7 H H O | SHEET AMBIENT TEMPERATURE T, (C) L) a 7 BYUeeuedk4 JA BAAS AEP vA Li 20mm *@ Allowable Power dissipation in setting free fever 20mm infinityly When the Power loss in the IC is large, please design for A . - setting free fever not to be 125 C at junction. MITSUBISHI J ELECTRIC 7-51MITSUBISHI <Dig./Ana. INTERFACE> M5294P SYSTEM RESET IC WITH LOW INPUT-OUTPUT VOLTAGE DIFFERENTIAL TYPE+5V REGURATOR, AND 3.0V REGULATOR FOR MUTE FUNCTION ELECTRICAL CHARACTERISTICS (Vin= 7V, toe = 100mA, log = ~100mA, Ta= 25) Limits Symbol Parameter Test conditions Unit Min Typ Max #Floc Positive circuit current without load _ 6 10 mA Clec Negative circuit current without load _ 1.5 -5.0 mA lLoss#1 lo# = 100mA _ 10 30 mA ILoss.i2 loa =200mA _ 30 90 mA Loss current lLoss=} low = - 100mA _ -2 20 mA ILossc2 loge = 200mA 5 40 mA REGULATOR PART Limits Symbol Parameter Test conditions Unit Min Typ Max Vo Output voltage +4.75 |) +5.0 | +5.25 Vv REG-in Input voltage rejection Veco t~ 10V _ 0.05 0.2 %IN REG-o Lording vo'tage rejection Io = 1-~ 100mA _ 20 100 mv RRA Positive ripple reyection Crer = 1uF, f= 120Hz 60 85 _ dB R.RO Negative ripple rejection Crer= le, f= 120Hz 50 60 _ dB NBO Dual voltage tracking _ 0.5 5 % VNo Output noise voltage f=20Hz~ 100kKHz _ 20 _ eVrms Volo? Output cut-off voltage OV S44 pin vollage S0,2V _ _ Q.1 Vv Vref Reference input voltage 1.43 1.24 1.36 v VOIR Input-Output voltage differential loz = 100mA _ 0.2 0.5 Vv VolIFS Input-Output voltage differential los = 100mA _ 0.2 0.5 Vv Tod Output delay tme #1 Cod =0.14F 4.5 9 18 ms los+ T)= 125C _ 30 _ mA Qutput short current los T)= 125C _ 30 _ mA MUTE REGULATOR PART Limits Symbol Parameter Test conditions Unit Min Typ Max Vu Mute output voltage ILu=3mA 2.7 3.0 3.3 Vv Vo IrFM Input/Output voltage difference ILm=3mA _ 2.5 3.2 Vv RESET PART Lumits Symbol Pararreter Test conditions Unit Min Typ Max Vs Detected voltage 3.70 3.9 4.10 Vv AVS Hysteresis voltage 50 100 200 mv Tod Delay ime *2 Cd=0.1uF 5.5 WW 22 mS Vsat Output saturation voltage RL=10kQ _ 0.2 0.4 Vv * 1. The penod by when +5 output starts up since MUTE Reg. rises up to 1.5V. #2. Reset output includes resistor | 10k:2) from the +5V output, but cutput saturation voltage 1s condition with outside registor (1Oks2) 752 MITSUBISHI ; ELECTRICMITSUBISHI <Dig./Ana. INTERFACE> MS294P SYSTEM RESET IC WITH LOW INPUT-OUTPUT VOLTAGE DIFFERENTIAL TYPE+SV REGURATOR, AND 3.0V REGULATOR FOR MUTE FUNCTION TYPICAL CHARACTERISTICS CIRCUIT CURRENT VS. CIRCUIT CURRENT VS. POWER SUPPLY AMBIENT TEMPERATURE < = E <x = 3 Plec Oo D vv 3 When the input-output + 2 voltage are inverted 8 a drive circutt sink to be & = own ability. Z e cc WwW s Sr 3 we 3 5 EB oO 4020 0 20 40 60 80 100 120 POWER SUPPLY Vec (V} AMBIENT TEMPERATURE Tg (C) OUTPUT VOLTAGE VS. OUTPUT VOLTAGE VS. POWER SUPPLY AMBIENT TEMPERATURE Voo=7V Bio=100MA Slg=100mA loP=100MA IpO=100mA OUTPUT VOLTAGE Vo, Vo (V) OUTPUT VOLTAGE @Vo, Vg (V) 40-20 0 20 40 60 80 100 120 POWER SUPPLY Vee (V) AMBIENT TEMPERATURE Ta (C) OUTPUT SHORT CURRENT VS. JUNCTION TEMPERATURE RIPPLE REJECTION VS. FREQUENCY 500 100 a 400 _ 9 3 a 300 = 80 fe 3 a6 > 70 (OC=?. 5Vv : 8 oP AC=0dBm e 200 5 60 Cref=1 uF 5 w BR, =500 oO 150 ao 50 - us OR, =500 9 100 & 40 wn Cc & 50 30 a a) 0 20 0 20 40 60 80 100 120 140 160 10 100 Ik 10k JUNCTION TEMPERATURE Tj (C) FREQUENCY (Hz) MITSUBISHI ; ELECTRIC 753MITSUBISHI <Dig./Ana. INTERFACE> MS294P SYSTEM RESET IC WITH LOW INPUT-OUTPUT VOLTAGE DIFFERENTIAL TYPE=+SV REGURATOR, AND 3.0V REGULATOR FOR MUTE FUNCTION MUTE VOLTAGE Vw (V) RESET OUTPUT SATURATION VOLTAGE VS. AMBIENT TEMPERATURE MUTE VOLTAGE VS. POWER SUPPLY 8 0.4 7 6 0.3 0.2 0.1 0 40 20 0 20 40 60 1 120 0 2 4 6 8 10 12 14 16 RESET OUTPUT SATURATION VOLTAGE Vaz (mV} POSITIVE POWER SUPPLY +Vee (V) AMBIENT TEMPERATURE Tg (C) RESET OUTPUT SATURATION VOLTAGE VS. RESET OUTPUT REJECTION DELAY TIME VS. DELAY CAPACITY 0.8 1000 0. 754 s = 3 > Ww 3 E < 0.6 = 3 a Oo e 100 > O05 3 Z e ~ 04 Ww 4 = z zo > 10 3 0, 2 = 5 . O a = Ol 5o t+ 0,0 \ % 100 1k 10k 100k 0.01 x 0.1 Ty TO n cc RESET OUTPUT REJECTION R, (KQ) DELAY CAPACITY Cog, Cq (F) MITSUBISHI W ELECTRICMITSUBISHI <Dig./Ana. INTERFACE> MS294P SYSTEM RESET IC WITH LOW INPUT-OUTPUT VOLTAGE DIFFERENTIAL TYPE+5V REGURATOR, AND 3.0V REGULATOR FOR MUTE FUNCTION OUTPUT TIMING CHART a oo ~ +Voc 4 t Vu b--- @M1.5VP- = +3.0V +Vo aA - ' | RESET 1 OPERATING EXPLANATION @) M5294P amplifies the stable reference voltage, and it makes Mute voltage Vay (3.0V) and Positive output voltage +Vo (5.0V), Via Veet (14) Ve +Vo=VeerX (14-22) Vec Vu +Vo R I " , I " . Each +Vo includes the short-circuit protection with current foldback. +VM includes the short-circuit protection without current foldback. @ +Vo (45V) output rise up since Vy (1.5V) rises up to (@ Vay is composed through the diode, therefore the trans- 1.5V. ient time rises varies by external capacity and load +Vq output delay time Tog is set by adding external condition. Consequently, +Vg had been down, and if capacitor Cod. your system needs MUTE voltage, you have to increase Tod = 9x 10% x Cog (s) the external capacity. @ Low Reset output is cancelled when +V, output ruses ) The Reset output is low when the +Vg is down to Vz. up to Vs + AVs (4.0VTYP). The delay time Tog is set (3.9V). by adding external capacitor Cq. Tpd = 11x 107 x Cg (s) 9 MITSUBISHI ELECTRIC 755MITSUBISHI <Dig./Ana. INTERFACE> MS294P SYSTEM RESET IC WITH LOW INPUT-OUTPUT VOLTAGE DIFFERENTIAL TYPE+SV REGURATOR, AND 3.0V REGULATOR FOR MUTE FUNCTION TYPICAL APPLICATION Cree Connection of this capacitor gives the following charac- AG E +> teristics. + 1. The ripple rejection ratio is improved. aH 470 nF 2. Output noise voltage is reduced down to 1/10. ro 3. The rise time of the output voltage can be adjusted. + i 470 pF Cree TO RESET TERMINAL OF MCU -_ fl fl fl fa r 10 1 QZ lt Vcc(1) Vret FSVC1} +Vee(2) +5V(2) ON/OFF M5294P + qm BALANCE PHASE Vec() apjustMent 5V GND Vec(2) CONPENSATION +3. 0V capacity RESET RESET DELAY OUTPUT CAPACITY rey Joe Gl Ww tl LT 71 Co- 47 uF {tJ 1000pF + Coe The all output is shut down by connecting the 4) terminal to GND level (OS VG) <0.2V). When -Vg is shorted to GND, -Vo sometimes causes OSC condition, therefore please add the capacitor between and ) terminal. The capacity is about 1000pF. 1. In adjusting the output voltage (use @pin} 2. In adjusting the tracking valtage (user (2) pin) -- TTI I < x + | O 10nF OY 25 +3. 0v @ to 4 ) re Tyr \ | M5294P is fixed the output voltage by inside resistors, (s)4> but user can adjust it by using the outside resistor. j {inside resistor: 1.6KQ 9) to @ 4.85KQ | Lo_4 M5294P is fixed the tracking voltage by inside resistor, but user can adjust it by using the output resistor. {inside resistor: 49to @ @to@, 5K) MITSUBISHI 756 . ELECTRIC