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IP3101 Versatile Gate Driver DESCRIPTIONS The IP3101 provides simple and high performance control functions for the half bridge L/C resonant system, specially electronic ballast . It internally integrated the essential functions of the half bridge L/C resonant system so the conventional system can be realized a minimum board area, small external components and low power dissipation. Internally integrated soft-start circuit eliminated the need for external soft-start circuit. And the initial preheating switching frequency and preheating time can be easily programmable with only one capacitor (preheating frequency capacitor) and one resistor (preheating time capacitor) depending on the types of lamps. Also the normal operating frequency can be easily adjusted by timing resistor (Rt) and timing capacitor (Ct). The cold cathode current can be limited by changing the normal operating frequency to soft-start frequency with an external small signal transistor. No lamp protection or any required protection like over current protection can be realized by adding an external small signal transistor. 8DIP 8SOP FEATURES - Internal Soft Start - Programmable Soft Start Frequency - Programmable Preheating Time - Very Precision Internal Operating Frequency(+5%) - No Lamp Protection or Over Current Protection - Precision Internal Reference Voltage - 8DIP, 8SOP Packages ORDER INFORMATIONS Device IP3101 Package 8DIP 8SOP Operating Temp -25 C ~ 125 C BLOCK DIAGRAM I3101 Vz Ipht PHT 1 Iss Voltage Reference (Vz,Vref) Pre-Heat Oscillator Reference Output UVLO (10V/8V) 8 VCC 1.5V UVLO Vcc CT 2 Ichg 7 OSCILLATOR HO Idis I(CT)=I(RT)+I(PHF) I(CT) OUTPUT LOGIC Vcc I(RT) RT 3 I(PHF) OSC, PHT, HO,LO Shutdown Iss Delay Timer 6 LO PHF 4 1.0V Protection Comparator 5 GND September. 2003 http://www.interpionsemi.com -1- IP3101 Versatile Gate Driver PIN CONNECTIONS PIN DESCRIPTIONS NO 1 2 3 4 5 6 7 8 SYMBOL PHT CT RT PHF GND LO HO VCC I/O I I I I O O DESCRIPTION Preheating Time & Soft-start Time Control Pin with Capacitor Internal Oscillator Timing Control Pin with Capacitor Internal Oscillator Timing Control Pin with Resister Preheating Frequency & Soft-Start Frequency Control Pin with Resister Ground Low Side Gate Drive Output High Side Gate Drive Output Supply Voltage ABSOLUTE MAXIMUM RATINGS CHARACTERISTICS Maximum Supply Voltage Maximum Operating Supply Voltage Totem-pole Output Peak Current Power Dissipation(8DIP) PIN1,2,3,4 Voltage Output Clamp Diode Current Operating Junction Temperature Storage Temperature SYMBOL VCCMAX VOPMAX IPEAK Pd VIN ICLAMP Tj Tstg VALUE 30 24 300 800 -0.4 ~ 6 30 -25 ~ +125 -65 ~ 150 UNIT V V +mA mW V mA C C September. 2003 http://www.interpionsemi.com -2- IP3101 Versatile Gate Driver ELECTRICAL CHARACTERISTICS (Ta = 25 C, Vcc=14V, fosc=46KHz, unless otherwise specified.) CHARACTERISTICS SYMBOL CONDITIONS MIN TYP MAX UNIT Total Supply Current Section Start-up Current Quiescent Current Operating Supply Current IST IQ ICC Vcc = 9V Not Switching fosc=46KHz, Co=1nF 3 4 125 7.5 9 250 12 14 uA mA mA Under Voltage Lock Output Section Vcc Turn-On Voltage UVLO Hysteresis Voltage Preheating (Soft Start) Section PHT Charging Current PHT Threshold Voltage PHF Reference Voltage PHF Reference Voltage Line Regulation PHF Reference Voltage Load Regulation Protection Section Protection Input Threshold Voltage Protection Triggering Current PHF Maximum Current VPROT IPROT IPHF PIN4=from 2.0V to 0V PIN4=0V VPHF=1.5V 0.7 200 1.0 -1 1.3 V mA uA IPHT VPHT VPHF DVPHF1 DVPHF2 PIN1=0V PIN1 Increasing, Rphf=33K IPHF=100uA Vcc=12~20V Io=50uA~200uA 0.7 1.2 1.95 -6 -12 0.9 1.5 2.00 0.1 -0.1 1.1 1.8 2.05 6 12 uA V V mV mV VCCON HYS Vcc Increasing 9 1.5 10 2 11 2.5 V V September. 2003 http://www.interpionsemi.com -3- IP3101 Versatile Gate Driver ELECTRICAL CHARACTERISTICS (Continued) CHARACTERISTICS Oscillator Section RT Reference Voltage RT Short to GND Current RT Reference Line Regulation RT Reference Load Regulation Soft Start Output Frequency Operating Frequency NOTE Frequency Variation With Vcc Dead Time Output Section Output High Voltage 11 Output High Voltage 12 Output Low Voltage 21 Output Low Voltage 22 Output Maximum Voltage Output Voltage with UVLO activated VOH11 VOH12 VOL21 VOL22 VHOMAX VUV Io = -10mA Io = -100mA Io = 10mA Io = 100mA Vcc=20V, No Load Vcc=5V, Io=100uA 11 10.5 0 0.05 11 12 11.5 0.05 0.4 14 0.6 13 12.5 0.4 1.2 17 1 V V V V V V VRT ISCRT DVRT1 DVRT2 FPHT11 FOSC1 DVFSC1 TD IRT=100uA PIN3=0V Vcc=12V~20V Io=100uA~500uA PIN1=0V,Rphf=33K, CT=470pF, RT=20K PIN1=5V, Rphf=33K, CT=470pF, RT=20K Vcc=14V~24V PIN1=5V, Rphf=33K, CT=470pF, RT=20K 1.95 1 -6 -12 61 43 1.15 2.00 2 0.1 -0.1 68 46 0.01 1.75 2.05 6 12 75 49 2.35 V mA mV mV KHz kHz % us SYMBOL CONDITIONS MIN TYP MAX UNIT * NOTE : FOSC (Operating Frequency) is the half of Oscillator Frequency. September. 2003 http://www.interpionsemi.com -4- IP3101 Versatile Gate Driver APPLICATION INFORMATIONS 1. Calculation for VPHT The VPHT is voltage of pin 1. The preheating time is decided by this voltage. V PHT = Where, 44000 R PHF + 0 . 05 RPHF is the value of resistor which is connected to pin 4. 2. Calculation for TPH The TPH is preheating time, from preheating frequency to normal operating frequency. When the voltage of pin 1 reach to the VPHT, the preheating will be completed. TPH = CPHT VPHT 0.9 x10-6 CPHT is the value of capacitor which is connected to pin 1. Where, 3. Calculation for fSW The fSW is normal operating frequency. f SW @ 1 2.2 x RT CT CT & RT are the value of capacitor & resistor which are connected to pin 2 & pin 3. Where, 4. Calculation for fPRH The fPRH is preheating frequency. f PRH @ R T + R PHF 2 . 5 x R T C T R PHF September. 2003 http://www.interpionsemi.com -5- IP3101 Versatile Gate Driver OPERATION TIMING CHART September. 2003 http://www.interpionsemi.com -6- IP3101 Versatile Gate Driver TEST CIRCUITS TYPICAL APPLICATION CIRCUITS September. 2003 http://www.interpionsemi.com -7- IP3101 Versatile Gate Driver PACKAGE DIMENSIONS September. 2003 http://www.interpionsemi.com -8- IP3101 Versatile Gate Driver PACKAGE DIMENSIONS September. 2003 http://www.interpionsemi.com -9- |
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