ua BS BIPOLAR ANALOG INTEGRATED CIRCUIT uPC1094 SWITCHING REGULATOR CONTROL CIRCUIT FOR 500 kHz OPERATION DESCRIPTION uPC1094C, uPC1094G are PWM type switching regulator control circuit up to 500 kHz switching frequency. These devices feature low standby current, totem pole output circuit which can directly drive the gate of power MOS FET at high speed, and various protection circuits. These devices are optimum choise for the single ended primary control method switching regulator. FEATURES @ Directly switching the gate of an external power MOS FET at high speed. (Ic(peak) = 1.2 A) Low supply current. Internal low voltage stop circuit. Internal ON/OFF control circuit. Over current sense pin appendant. Capable of master slave operation. ORDERING INFORMATION Part Number Package uPC1094C 14-PIN PLASTIC DIP (300. mil) uPC1094G 14-PIN PLASTIC SOP (225 mil) CONNECTION DIAGRAM (Top View) Remote Veer Control NC Emitter Output Collector Voc bel fel pal_f_pel fe) fa LOW VOLTAGE STOP | REFERENCE REGULATOR OSCILLATOR UEP ee be? a Dead Feed Over NC Cr Ry GND Time Back Current Control Sense NEC cannot assume any responsibility for any circuits shown or represent that they are free from patent infringement. NEC Corporation 1989ABSOLUTE MAXIMUM RATINGS (Tg = 25 C) VCC(H to L) Supply Voltage Vec 26 V Output Voltage Ve 26 Vv Output Current (DC) le(pe) 100 mA Output Current (Peak) Ic (peak) 1.2 A Total Power Dissipation pPC1094C P+ 570 mW uPC1094G P+ 550 mw Operating Temperature Range Topt 20 to +85 c Storage Temperature Range Tstg 55 to +150 c RECOMMENDED OPERATING CONDITIONS CHARACTERISTIC SYMBOL MIN, TYP, MAX. UNIT Supply Voltage Vcc 11 15 24 Vv Oscillation Frequency Tose 50 200 500 kHz Output Load Capacitance CL 2 200 3 000 pF OPERATING WAVEFORM VCC(L to H) > Supply Voltage | VIN(ON) ! I | Remote Control Pin \ | Voltage | VIN(OFF) ! : ! ! | Feed Back | | \ D-T CONT } vate | ! ocs | | | ALAA A yas i 1 | Oscillation Waveform STOrr I" | | | | I I | | \ I | I | Output Waveform | | j | | | t | | | | | ! | ! ! | __/ _/ELECTRICAL CHARACTERISTICS (Tg = 25 C, Voc = 15 V, RT 45 36 kS, CT = 1 000 pF, fose = 200 kHz) CHARACTERISTIC SYMBOL MIN, TYP. MAX, UNIT TEST CONDITIONS Stand-by Current lccisB) 09 1.6 mA | Voc =8 V,-10CS Tg S485 C Voc = Vc 20 V, Vp =2.15 V Circuit C t I 6 10 mA ircuit Curren cc No Load *4 & 5 Start-up Voltage VceC(LtoH) 9.6 10.3 11 Vv ze2o 5285 | Hysteresis Voltage Vy 18 2.0 2.2 V Fe) Reference Voltage VREEF 4,75 5.0 5.25 Vv IREF =0 8 Line Regulation REGn 1 10 mV | 11VS Voc $20 V, Irer=0 gd Loaci Regulation REG. 65 12 mV | OSIREFS<3mMA ge 5 Temperature Coefficient AVrer/AT 400 700 uVPC | IREF =0,-10C ST, S+85C & tc Short Circuit Current Ishort 13 mA VREF =0 Input Bias Current lB 10 RBA 2 Low Level Threshold Voltage VTH{L) 16 Vv 5 High Level Threshold Voltage VTH(H) 2.5 Vv = Vp =043 V = Dead Time Temperature Coefficient 3 % D REF, -10C< Ty < 485C 5 Oscillation Frequency fosc 180 200 220 kHz g = 5 Frequency Line Regulation AtlAV 1 % 11VSVcec S20V ge 6o Frequency Temperature Coefficient At/AT 2 5 % 10C ST, =+85C Low Level Output Voltage VOL 0.5 Vv IsINK =3mA *1 s # High Level Output Voltage VoH Vcc-1.6 Vv ISOURCE = 30 mA *1 a 5 | Output Voltage Rise Time te 60 ns o - RL=152,CL=2200pF *1, *2 Output Voltage Fali Time tt 40 ns 6 = | Input Voltage (ON) VIN(ON) 2.4 V EES 36 | Input Voltage (OFF) VIN(OFF) 0.5 V *2 RL: Load Resistance *1 Vec Collector (pin 9) connection, CL: Load Capacitance GND Emitter (pin 11) connectionTYPICAL CHARACTERISTICS (Tg = 25 C, Voc = 15 V) MAXIMUM POWER DISSIPATION vs, AMBIENT TEMPERATURE | LOW VOLTAGE STOP CIRCUIT VecPin9 Connection GNDPin11 Connection No Load Vcc Vcc (H to L) (L to H) VcOutput VoltageV PTMaximum Power DissipationmW 75 100 TaAmbient TemperatureC STAND-BY CURRENT vs. AMBIENT TEMPERATURE 5 10 VocSupply VoltageV CIRCUIT CURRENT vs. SUPPLY VOLTAGE VccPin9 Connection GNDPin11 Connection No Load VocPin9 Connection GNDPin11 Connection No Load r_| | | ICC(SB)Stand-by CurrentmA iccCircuit CurrentmA Se 50 75 TaAmbient Temperature"C REFERENCE VOLTAGE DEVIATION vs. AMBIENT TEMPERATURE = 5 10 15 20 VcocSupply VoltageV OSCILLATION FREQUENCY vs, TIMING RESISTANCE, CAPACITANCE IREF=0 I AVREFReference Voltage DeviationmW foscOscillation FrequencykHz 50 75 TaAmbient Temperature"C 20 50 100 200 500 RtTiming ResistancekQfoscOscillation FrequencykHz DutyOn Duty% tr, tf ~Output Voltage Rise Time, Fall Timens OSCILLATION FREQUENCY vs. AMBIENT TEMPERATURE 525 Ct=470 pF 500 }-}== > 475 + an x xy ~ aw 225 CT=1 000 pF 206 et 175 25 0 25 50 75 100 TaAmbient TemperatureC ON DUTY vs. AMBIENT TEMPERATURE 45 Vp =0.43-VREF fose=200 kHz (CT=1 000 pF) l ' 1 fose=500 kHz (CT=470 pF) 40 Ss 35 25 0 25 50 75 100 TaAmbient Temperature C OUTPUT VOLTAGE RISE TIME, FALL TIME vs, AMBIENT TEMPERATURE 100 Voc=Ve RL=15 0 CL=2 200 pF 80 tr |_| 60 |__= ene] 40 7 20 0 25 oO 25 50 75 100 TaAmbient TemperatureC VOL: VOH~Low Level, High Level Output Voltage V VTH(L): TH(H)Low Level, High Level Threshold VoltageV DutyOn Duty % LOW LEVEL, HIGH LEVEL THRESHOLD VOLTAGE vs. OSCILLATION FREQUENCY 3.5 CrT=1 000 pF 3 2.5 2 1.5 ~ 1 20 50 100 200 500 1000 foscOscillation Frequency kHz ON DUTY vs. DEAD TIME PIN VOLTAGE 100 fosc=200 kHz (Cr=1 000 pF) 1 _~ fose= 500 kHz (CT=470 pF) 80 \ 60 x 40 \ 20 XK 0 16 2.0 2.5 VpDead Time Pin VoltageV LOW LEVEL, HIGH LEVEL OUTPUT Voc VOLTAGE vs. AMBIENT TEMPERATURE 2 ISINK=3 mA V ISOURCE=30 mA oo __| . Voc -1 a x a ~ _ 0.05 | nan | eennernnnny 0.025 |} eeeennenecenternr | 0 25 0 25 50 75 100 TaAmbient Temperature CTYPICAL APPLICATION Current Transformer Primary Side Secondary Side Input Voltage(DC) WW On/Off Control Vo SENSE(+) uPC1093 Vo SENSE()14-Pin Plastic DIP (300 mil) {C Package) pr rf Fir WY LILILI LIU tu NOTES 1) Each fead centerline is located within 0.25 mm (0.01 inch) of its true position (T.P.) at maximum material condition. 2) Item K to center of leads when formed parallel. 0~15 P14C-100-300B1 ITEM MILLIMETERS INCHES A 20.32 MAX. 0.800 MAX. B 2.54 MAX. 0.100 MAX. Cc 2.54 (T.P.) 0.100 (T.P.) D 0.50*' 0.020 78:888 F 1.2 MIN, 0.047 MIN. G 3.67% 0.142*'? H 0.51 MIN. 0.020 MIN. | 4.31 MAX. 0.170 MAX. J 5.08 MAX. 0.200 MAX. K 7.62 (T.P.) 0.300 (T.P.) L 6.4 0.252 M 0.25 *8:68 0.01028:883 N 0.25 0.0114-Pin Plastic SOP (225 mil) (G Package) 5 ARAAARA O HEE HEPES A Oo bon on on ce ! t uw | Cc oi m_@] NOTE Each lead centerline is located within 0.12 mm (0.005 inch) of its true position (T.P.) at maximum material condition. IC1862 January 1989M Printed in Japan H | fT. He L S14GM-50-2258, C ITEM MILLIMETERS INCHES A 10.46 MAX. 0.412 MAX. B 1.42 MAX. 0.056 MAX. Cc 1.27 (T.P.) 0.050 (T.P.) D 0.40 18:68 0.016 ~9:808 E Oo 470! 0.004 *:90% F 1.8 MAX. 0.071 MAX. G 1.49 0.059 H 6.573 0.256 79-012 { 4.4 0.173 J 1 0.043 K 0.15 28:08 0.006 *8:882 L 0.67? 0.024 ~8:088 M 0.12 0.005