IP3102 Versatile Gate Driver DESCRIPTIONS The IP3102 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. Preheating time, preheating frequency, operating frequency and ignition time can be controlled separately using external capacitors and resistor. No lamp protection or any required protection like over current protection can be realized by adding an external small signal transistor. ORDER INFORMATIONS Device IP3102 Package 8DIP Operating Temp ° ° 8DIP 8SOP FEATURES - Internal Soft Start - Programmable Preheating Frequency - Programmable Preheating Time - Programmable Ignition Time - Very Precision Internal Operating Frequency(+5%) - No Lamp Protection or Over Current Protection - Built-in Temperature Compensation circuit - Built-in surge protection circuit - Built-in UVLO circuit - Precision Internal Reference Voltage - 8DIP, 8SOP Packages -25 C ~ 125 C I3102 8SOP BLOCK DIAGRAM JUNE. 2007(REV1) http://www.interpionsemi.com -1- IP3102 Versatile Gate Driver PIN CONNECTIONS PIN DESCRIPTIONS NO SYMBOL I/O DESCRIPTION 1 CIGN I Ignition Time Control Pin with external Capacitor 2 CT I Internal Oscillator Timing Control Pin with Capacitor 3 RPHF I Preheating Frequency Control Pin with external Resistor 4 CPH I Preheating Time Control Pin with external Capacitor 5 GND - Ground 6 LO O Low Side Gate Drive Output 7 HO O High Side Gate Drive Output 8 VCC - Supply Voltage ABSOLUTE MAXIMUM RATINGS CHARACTERISTICS SYMBOL VALUE UNIT Maximum Supply Voltage VCCMAX 30 V Maximum Operating Supply Voltage VOPMAX 24 V Totem-pole Output Peak Current IPEAK +1 A Power Dissipation(8DIP) Pd 800 mW PIN1,2,3,4 Voltage VIN -0.4 ~ 6 V Output Clamp Diode Current ICLAMP 30 mA Operating Junction Temperature Tj -25 ~ +125 Storage Temperature Tstg -65 ~ 150 JUNE. 2007(REV1) http://www.interpionsemi.com ° ° C C -2- IP3102 Versatile Gate Driver ELECTRICAL CHARACTERISTICS ° (Ta = 25 C, Vcc=14V, fosc=47KHz, unless otherwise specified.) CHARACTERISTICS SYMBOL CONDITIONS MIN TYP MAX UNIT Total Supply Current Section Start-up Current IST Vcc = 9V - 125 250 uA Quiescent Current IQ Not Switching 3 7.5 12 mA fosc=47KHz, Co=1nF 4 9 14 mA Vcc Increasing 9 10 11 V - 1.5 2 2.5 V Operating Supply Current ICC Under Voltage Lock Output Section Vcc Turn-On Voltage UVLO Hysteresis Voltage VCCON HYS Oscillator Section Operating Frequency Note1 fop CT=220pF 42 47 52 V Output Delay Time Td PIN1=PIN4=3V 1 1.75 2.35 uS Preheating Frequency fph PIN4=0V, Rphf=27K 66 78 90 mV Output Preheating Delay Time Tpd PIN4=0V 0.6 1 1.4 uS Pin4(CPH) Threshold Voltage VPH PIN4 Voltage Increasing, Rphf=27KΩ 1.8 2.0 2.2 V Pin4(CPH) Charging current IPH Pin4=0V -1.9 -1.6 -1.3 uA Pin4=Open 3.2 3.7 4.2 V IPHF= -100uA 1.95 2.00 2.05 V Preheating Section (Pin3, Pin4) Pin4(CPH) High clamp voltage Pin3(PHF) Reference Voltage VPHT(H) VPHF Pin3(PHF) Reference Voltage Line Regulation DVPHF1 Vcc=14~20V -6 0.1 6 mV Pin3(PHF) Reference Voltage Load Regulation DVPHF2 Io=-50uA ~ -200uA -12 -0.1 12 mV JUNE. 2007(REV1) http://www.interpionsemi.com -3- IP3102 Versatile Gate Driver ELECTRICAL CHARACTERISTICS (Continue) ° (Ta = 25 C, Vcc=14V, fosc=47KHz, unless otherwise specified.) CHARACTERISTICS SYMBOL CONDITIONS MIN TYP MAX UNIT Ignition Section (Pin1) Pin1(CIGN) Threshold Voltage VIGN PIN4 Voltage Increasing, Rphf=27KΩ 1.8 2.0 2.2 V Pin1(CIGN) Charging current IIGN Pin4=0V -14 -11 -8 uA VIGN(H) Pin4=Open 3.8 4.3 4.8 V Output High Voltage VOH Io = -100mA 11 12 - V Output Low Voltage VOL Io = 100mA - 0.9 1.4 V Pin1(CIGN) High clamp voltage Output Section Output Maximum Voltage VHOMAX Vcc=20V, No Load 13 15 17 V Output Voltage with UVLO activated VUV Vcc=5V, Io=100uA - 0.2 1 V Thermal Shut Down protection Thermal Shut Down Note2 Ttsd - - 175 - Thermal Shut Down Hysteresis Note3 Thys - - 20 - * Note 1: Output frequency is half of the internal oscillator frequency. * Note 2, Note 3 : This characteristics can be guaranteed but not tested in final test step. JUNE. 2007(REV1) http://www.interpionsemi.com -4- IP3102 Versatile Gate Driver OPERATING TIMING CHART fph:Preheating Frequency (Rph) fop:Operating Frequency (CT) Tph:Preheating Time (Cph ) Tign:Ignition Time (Cign) JUNE. 2007(REV1) http://www.interpionsemi.com -5- IP3102 Versatile Gate Driver APPLICATION INFORMATIONS 1. Operating frequcncy Ch arg ing _ time :Tchg= CT × Vchg_pp Ichg Discharging _time : Tdis= CT : Pin2 Capacitor Vchg_pp :Amplitude of the Internal oscillator Ichg : Charging current (Internally fixed) Idis : Discharging current (Internally ) CT×Vchg_pp Idis Total _ period : T =Tchg +Tdis 1 1 1 1 Operating_Frequcncy(fo)= × = × 2 Total_Period 2 Tchg +Tdis Final formula F r e q u e n c y : fo = (1 0 .3 5 × 1 0 − 6 ) × 1 CT Example) CT=220pF fo = 10.35 × 10 − 6 × 1 = 47 KHz 220 × 10 −12 2. Preheating frequency Pr eheatingCh arg ing _ Time : Tchg_ph= CT × Vchg_ph_pp Ichg_ph Pr eheatingDisch arg ing _ Time: Tdis_ph= CT × Vchg_ph_pp Idis_ph CT : Pin2 Capacitor Vchg_pp :Amplitude of the Internal oscillator (When preheating) Ichg : Charging current (Internally fixed When preheating) Idis : Discharging current (Internally When preheating) Pr eheatingTotal _ Pr eiod : Tph = Tchg _ ph + Tdis _ ph 1 1 1 1 PreheatingFrequency(fph)= × = × 2 Pr eheatingTotal _ Period 2 Tchg _ ph + Tdis _ ph Final formula fp h = 0 .1 3 7 5 × 1 2 .0 × (78u A + ) CT Rph Example) CT=220pF, Rph=27K ohm fo = 0.1375 × JUNE. 2007(REV1) 1 2.0 1 2.0 × (78 × 10 −6 + ) = 0.1375 × × (78 × 10 −6 + ) = 95 KHz CT Rph 220 × 10 −12 27 × 103 http://www.interpionsemi.com -6- IP3102 Versatile Gate Driver APPLICATION INFORMATIONS 3. Preheating Time Preheating_Time : Tph = Cph × Vph Iph Cph : Pin4 Capacitor Vph: Constant Voltage (Internally fixed) Iph : Constant current (Internally fixed) Preheating_Time: Tph =1.25×106 ×Cph Example) Cph=0.33uF Tph = 1.25×106 × 0.33×10−6 = 413ms 4. Ignition Time Ignition _ Time : Tign = Cign : Pin1 Capacitor Vign: Constant Voltage (Internally fixed) Iign : Constant Current (Internally fixed) Cign ×Vign Iign Ignition_Time : Tign = 0.182 ×103 × Cign Example) Cign=47nF Tign = 0.182 × 10 6 × 47 × 10 −9 = 8.5 ms JUNE. 2007(REV1) http://www.interpionsemi.com -7- IP3102 Versatile Gate Driver TEST CIRCUIT 1 CIGN CIGN SW1 220pF RPHF 3 RPHF SW2 40K 4 CPH IP3102X 2 CT CT VCC 8 VCC 104 4.7uF 35V 1W HO 7 HO SW4 1nF LO 6 SW5 SW6 100 5W 100 5W SW7 1K 1W LO SW3 1nF GND 5 *Option CPH JUNE. 2007(REV1) http://www.interpionsemi.com -8- IP3102 Versatile Gate Driver TYPICAL APPLICATION CIRCUIT Cing: Ignition Timing Capacitor CT : Oscillator timing capacitor Rph : Pre-heating timing resistor Cph : pre-heating timing capacitor JUNE. 2007(REV1) http://www.interpionsemi.com -9- IP3102 Versatile Gate Driver ELECTRICAL CHARACTERISTICS CURVES VCC & ICC icc [mA] 20 16 12 8 4 0 0 10 20 30 40 VCC [V] STAND-BY CURRENT IST 0.5 [mA] 0.4 0.3 0.2 0.1 0 0 2 4 6 8 10 12 VCC [V] JUNE. 2007(REV1) http://www.interpionsemi.com - 10 - IP3102 Versatile Gate Driver ELECTRICAL CHARACTERISTICS CURVES(Continued) VCC & FOP1,2 fop 49 [KHz] 48 47 46 45 10 15 20 25 30 35 VCC [V] VCC & FPHT1,2 fpht 85 [KHz] 83 81 79 77 75 10 15 20 25 30 35 VCC [V] JUNE. 2007(REV1) http://www.interpionsemi.com - 11 - IP3102 Versatile Gate Driver ELECTRICAL CHARACTERISTICS CURVES(Continued) TEMP. & FOP1,2 fop 51 [KHz] 50 49 48 47 46 45 44 43 -30 0 30 60 90 120 TEMP.[℃] TEMP. & FPHT1,2 fpht 90 [KHz] 86 82 78 74 70 -30 0 30 60 90 120 TEMP.[℃] JUNE. 2007(REV1) http://www.interpionsemi.com - 12 - IP3102 Versatile Gate Driver PACKAGE DIMENSIONS JUNE. 2007(REV1) http://www.interpionsemi.com - 13 - IP3102 Versatile Gate Driver PACKAGE DIMENSIONS JUNE. 2007(REV1) http://www.interpionsemi.com - 14 -