UNISONIC TECHNOLOGIES CO., LTD 51494 LINEAR INTEGRATED CIRCUIT DESCRIPTION The UTC 51494 is a monolithic bipolar integrate circuit that provides same 494 function and built in power good signal circuit for easy using 51494 can be easily implemented by just adding a capacitor. SOP-16 FEATURES * Fully integrated with compact 16-pin dip * All necessary functions included for most popular half bridge circuit. * Built-in power good delay and power fail lead function. * Power good delay time is linearly. * Proportional to external capacitor value. * Reduced external components for cost down and components for cost down and compact size. DIP-16 ORDERING INFORMATION Ordering Number Lead Free 51494L-S16-R 51494L-S16-T 51494L-D16-T Halogen Free 51494G-S16-R 51494G-S16-T 51494G-D16-T www.unisonic.com.tw Copyright © 2012 Unisonic Technologies Co., LTD Package Packing SOP-16 SOP-16 DIP-16 Tape Reel Tube Tube 1 of 5 QW-R103-005.Ba 51494 LINEAR INTEGRATED CIRCUIT PIN ASSIGNMENT PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 NAME EA1+ EA1EA0 DT CT RT GND C1 GND CPG C2 VCC P.G. VREF EA2EA+ EA1+ 1 16 EA2+ EA1- 2 15 EA2- EA0 3 14 VREF DT 4 13 P.G. CT 5 12 VCC RT 6 11 C2 GND 7 10 CPG C1 8 9 GND FUNCTION Error amplifier noninverting input, same as pin 1 of 494 Error amplifier inverting input, same as pin 2 of 494 Error amplifier output and feedback, same as pin 3 of 494 Dead time control input, same as pin 4 of 494 Connect capacitor to oscillator circuit for operating frequency, same as pin 5 of 494 Connect resistor to oscillator circuit for operating frequency, same as pin 6 of 494 Ground terminal of IC, same as pin 7 of 494 Collector of output transistor one, same as pin 8 of 494 Ground terminal of IC Terminal for capacitor to determine power good delay time Collector of output transistor two, same as pin 11 of 494 Supply voltage, same as pin 12 of 494 Output for power good signal Reference voltage output, same as pin 14 of 494 Error amplifier inverting input, same as pin 15 of 494 Error amplifier noninverting input, same as pin 16 of 494 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 5 QW-R103-005.Ba 51494 LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM VCC 12 Ref Out 14 GND 7 Reference Regulator C1 8 TF.E C2 11 RT CT Dead-Time Control 6 Osc 5 + 4 GND 9 Dead Time COMPARATOR - + - EA1 Non-inv Input 1 Inv Input 2 - Non Inv Input 16 + Inv Input 15 Feed-Back 3 + PWM COMPARATOR EA2 - P.G. - 13 + 1.25V 10 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw CPG 3 of 5 QW-R103-005.Ba 51494 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (Unless otherwise specified, all is over operating free-air temperature Range) CHARACTERISTIC SYMBOL RATING Supply Voltage VCC 42 Voltage from any pin to ground (except pin8 & pin11) VIN VCC +0.3 Collector Output Voltage VC1, VC2 42 Peak Collector Output IC1, IC2 250 Power Dissipation PD 1500 Operating Temperature TOPR 0 ~ +70 Storage Temperature TSTG -40 ~ +150 Junction Temperature TJ 125 Note: 1. Absolute maximum ratings are those values beyond which the device could be permanently Absolute maximum ratings are stress ratings only and functional device operation is not implied. UNIT V V V mA mW ℃ ℃ ℃ damaged. ELECTRICAL CHARACTERISTICS (Unless otherwise specified, TA=0~70℃, VCC=15V, f=10kHz) PARAMETER REFERENCE SECTION Reference Voltage Line Regulation Load Regulation Temperature Coefficient OSCILLATOR SECTION Oscillator Frequency Oscillator Frequency Change Over Operating Temperature Range DEAD TIME CONTROL SECTION Input Bias Current ( Pin 4) SYMBOL Maximum Duty Cycle, Each Output DC(MAX) Zero Duty Max Duty ERROR AMPLIFIER SECTION Input Offset Voltage Input Offset Current Input Bias Current Input Common-mode Voltage Range Large Signal Open-Loop Voltage Range Unity-Gain Band width Input Threshold Voltage VREF VLINE VILOAD IREF =1.0mA 7V<VCC<40V 1mA<IREF<5mA 0℃ <FA<70℃ FOSC CT=0.01μF, RT=12kΩ ΔfOSC CT=0.01μF, RT=12kΩ IIB(DT) VCC =15V, 0V<V4<5.25V VCC = 15V, Pin 4 = 0V Output Control Pin = VREF VTH VICS IICS IIB VICR GVO fC UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw TEST CONDITIONS MIN TYP MAX UNIT 4.75 5 2 1 0.01 5.25 25 15 0.03 V mV mV %/℃ 10 -2 43 kHz 2 % -10 μA 45 % 3 3.3 2 25 0.2 10 250 1 VCC 0 V3=2.5V V3=2.5V V3=2.5V 7V <VCC< 40V 0.5V < V3 < 3.5V -0.3 60 74 650 V mV nA μA V dB kHz 4 of 5 QW-R103-005.Ba 51494 LINEAR INTEGRATED CIRCUIT ELECTRICAL CHARACTERISTICS(Cont.) PARAMETER SYMBOL TEST CONDITIONS OUTPUT SECTION Collector Off-State Current IC(OFF) VCC=VC=40V,VE=0 Emitter Off-State Current IE(OFF) VCC=VC=40V,VE=0 Output Saturation Voltage Common-Emitter VCE(SAT) VE=15V, LC=200mA OUTPUT CONTROL (pin13) Standby Power Supply Current ICC Output AC Characteristic Raise Time Common-Emitter TR Fall Time Common-Emitter TR PWM COMPARATOR SECTION Inhibit Threshold Voltage VTHI Zero Duty cycle Output Source Current IO + 0.5V < V3 < 3.5V Output Sink Current IO0.5V < V3 < 3.5V POWER GOOD SECTION CD = 1μF Power Good Delay Time tPD CD = 0.47μF Power Fail Lead Time TP1 Output High Voltage VOH VPINN = 5V, IL = 1mA Output Saturation Voltage VSAT VPINN = 5V, ISINK = 4mA Output Leakage Current IOH MIN 2 -0.2 230 108 TYP MAX UNIT 2 1.1 100 -100 1.3 μA μA V 6 10 mA 100 25 200 100 ns ns 4 4.5 V mA mA -0.6 280 130 4 330 160 4.75 0.4 100 ms ms V V μA UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 5 QW-R103-005.Ba