FLC10-200B

FLC10 Fire lighter circuit Datasheet − production data Description The FLC10 series has been especially developed for high power capacitance discharge operation. The main applications are gas lighters or ignitors such as cookers / gas boilers / gas hobs... TAB TAB 1 1 2 3 IPAK 2 3 DPAK It provides a fully integrated function, with high performance and reliability levels, adapted to severe and hot temperature environment. – Th: Thyristor for switching operation – Z: Zener diode to set the threshold voltage – D: Diode for reverse conduction – R: 2 k Ω resistor Figure 1. Functional diagram Features pin 2 (or tab) • Dedicated thyristor structure for capacitance discharge ignition operation • High pulse current capability: – 240 A at tp = 10 µs Z • Fast turn-on operation • Designed for high ambient temperature (up to 120° C) Th D Benefits • Space saving thanks to monolithic function integration R • High reliability with planar technology pin 1/3 * * Pin1 and pin3 must be shorted together in the application circuit layout June 2014 This is information on a product in full production. DocID5202 Rev 8 1/11 www.st.com 11 Characteristics 1 FLC10 Characteristics Table 1. Absolute ratings (limiting values) Symbol ITRM Parameter Repetitive surge peak on state current for thyristor -30° C ≤ Tamb ≤ 120° C Value Unit 240 A 200 A/µs tp = 10 µs (Figure 3) IFRM Repetitive surge peak on state current for diode -30° C ≤ Tamb ≤ 120° C dl/dt Critical rate of rise time on state current -30° C ≤ Tamb ≤ 120° C Tstg Tj Storage junction temperature range Maximum junction temperature - 40 to + 150 + 125 °C Toper Operating temperature range - 30 to + 120 °C 260 °C TL Maximum lead temperature for soldering during 10s Table 2. Thermal resistance Symbol Parameter Rth(j-a) IPAK thermal resistance junction to ambient Rth(j-a) DPAK thermal resistance junction to ambient S = 0.5 cm² Value Min. 100 ° C/W 70 ° C/W Figure 2. Electrical characteristics (definitions) I IF Symbol = Parmeter VRM VBO VT VF IBO IRM T = = = = = = Stand-off voltage Breakover voltage On-state voltage Diode forward drop Breakover current Leakage current V BO VRM V T VF V IRM I BO = Temperature coefficient for VBO IT Table 3. Electrical characteristics: diode (D) parameter Symbol VF 2/11 Test Conditions IF = 2 A tp ≤ 500 µs Tj = 25° C DocID5202 Rev 8 MAX Value Unit 1.7 V FLC10 Characteristics Table 4. Electrical characteristics: Thyristor (Th) and Zener (Z) parameters Symbol Test Conditions Min. Typ. Max Unit Tj = 25° C 1 µA Tj = 125° C 100 µA 250 V mA IRM VRM = 200 V VBO at IBO Tj = 25° C IBO at VBO Tj = 25° C 0.5 VT IT = 2 A, tp ≤ 500 µs Tj = 25° C 1.7 200 225 ⍺T V -4 13 Figure 3. Test current waveform 10 /° C Figure 4. Relative variation of breakover current versus junction temperature k = I BO (Tj) / I BO (25°C) 2.5 2 1.5 1 10µs 0.5 200ms 0 -20 0 20 40 60 80 100 Tj (°C) Figure 5. Basic application Ic Ic t Rs c Ds Th AC Z MAINS D R FLC10-200x DocID5202 Rev 8 3/11 Characteristics FLC10 The applications of the lighter using the capacitance discharge topology operate in 2 phases: Phase 1 The energy coming from the mains is stored into the capacitor C. For that, the AC voltage is rectified by the diode Ds. Phase 2 At the end of the phase 1, the voltage across the capacitor C reaches the avalanche threshold of the zener. Then a current flows through the gate of the thyristor Th which fires. – The firing of the thyristor causes an alternating current to flow through the capacitor C – The positive parts of this current flow through C, Th and the primary of the HV transformer – The negative parts of the current flow through C, D and the primary of the HV transformer RS resistor calculation The Rs resistor allows, in addition with the capacitor C, the spark frequency to be adjusted and the current from the mains to be limited. Its value shall allow the thyristor Th to fire even in the worst case. In this case the system must fire with the lower RMS mains voltage value while the breakdown voltage and current of the FLC are at the maximum. The maximum Rs value is equal to: (V AC min ⋅ 2) – [ V BO max ⋅ ( 1 + αT ⋅ ( T amb – 25 ) ) ] Rsmax = ---------------------------------------------------------------------------------------------------------------------------------------k ⋅ I BO ( 1 ) (1) See Figure 4 Figure 6. Spark frequency versus RS and C F (Hz) Vac=220Vrms, Vbo=225V, Tamb=25°C 20 C=0 .47μ 10 C=1 .5μF C=2 C=2 F C=1 μF .2μF .7μF 5 C=3 .3μF 3 2 1 4.7 6.8 10 12 Rs (k Ω ) 15 18 22 27 30 The couple Rs/C can be chosen with the previous curve. Keep in mind the Rs maximum limit for which the system would not work when the AC 4/11 DocID5202 Rev 8 FLC10 Characteristics mains is minimum. The next curve on the next page shows the behavior with RS = 15 k Ω and C = 1 µF. Figure 7. Voltage across the capacitance with Rs = Rs 15 k Ω , C = 1 µF and VBO = 225 V Peak current limit This component is designed to withstand ITRM = 190 A for a pulse duration of 10 µs for an ambient temperature of 120° C in repetitive surge. The curve of peak current versus the pulse duration allows us to verify if the application is within the FLC operating limit. Figure 8. Peak current limit versus pulse duration ITRM(A) 250 Tj max=120°C 200 150 100 50 5.0 7.5 10.0 tp (µs) 12.5 15.0 Power losses (for 10 µs, see Figure 3) To evaluate the power losses, please use the following equations: – For the thyristor: P = 1.18 x IT(AV) + 0.035 I2T(RMS) – For the diode: P = 0.67 x IF(AV) + 0.106 I2F(RMS) DocID5202 Rev 8 5/11 Package information 2 FLC10 Package information • Epoxy meets UL94, V0 • Lead-free package • Recommended torque: 0.4 to 0.6 N·m In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. Figure 9. DPAK dimension definitions A E b4 c2 E1 L2 D1 D D A1 H E1 L4 b e1 c V2 A2 Note: 6/11 L This package drawing may slightly differ from the physical package. However, all the specified dimensions are guaranteed. DocID5202 Rev 8 FLC10 Package information Table 5. DPAK dimension values Dimensions Ref. Millimeters Min. Typ. Inches Max. Min. Typ. Max. A 2.18 2.40 0.086 0.094 A1 0.90 1.10 0.035 0.043 A2 0.03 0.23 0.001 0.009 b 0.64 0.90 0.025 0.035 b4 4.95 5.46 0.195 0.215 c 0.46 0.61 0.018 0.024 c2 0.46 0.60 0.018 0.023 D 5.97 6.22 0.235 0.244 D1 5.10 E 6.35 E1 0.201 6.73 0.250 0.264 4.32 0.170 e1 4.40 4.70 0.173 0.185 H 9.35 10.40 0.368 0.409 L 1.00 1.78 0.039 0.070 L2 1.27 0.05 L4 0.60 1.02 0.023 0.040 V2 0° 8° 0° 8° Figure 10. Footprint (dimensions in mm) 6.7 3.0 3.0 5.094 6.7 B A 1.6 The device must be positioned within 0.05 A B DocID5202 Rev 8 7/11 Package information FLC10 Figure 11. IPAK dimension definitions E b4 A c2 V1 L2 D C L1 A1 e b2 b e1 Note: 8/11 H L c This package drawing may slightly differ from the physical package. However, all the specified dimensions are guaranteed. DocID5202 Rev 8 FLC10 Package information Table 6. IPAK dimension values Dimensions Ref. Millimeters Min. Typ. Inches Max. Min. Typ. Max. A 2.20 2.40 0.086 0.094 A1 0.90 1.10 0.035 0.043 b 0.64 0.90 0.025 0.035 b2 0.95 0.037 b4 5.20 5.43 0.204 0.213 c 0.45 0.60 0.017 0.023 c2 0.46 0.60 0.018 0.023 D 6 6.20 0.236 0.244 E 6.40 6.70 0.252 0.263 e e1 2.28 4.40 H 0.090 4.60 0.173 16.10 0.181 0.634 L 9 9.60 0.354 0.377 L1 0.8 1.20 0.031 0.047 L2 0.80 V1 10° 1.25 0.031 0.049 10° DocID5202 Rev 8 9/11 Ordering information 3 FLC10 Ordering information Figure 12. Order information scheme FLC 10 - 200 x y Fire Lighter Circuit Circuit number 10 = thyristor + diode + zener + resistance (high power version) Stand-off voltage 200 = 200 V Package H = IPAK B = DPAK Packing mode Blanck = Tube Table 7. Ordering information 4 Order code Marking Package Weight Base qty Delivery mode FLC10-200H FLC01-200H IPAK 0.4 g 75 Tube FLC10-200B FLC01-200B DPAK 0.3 g 75 Tape and reel Revision history Table 8. Document revision history 10/11 Date Revision Changes Sept-2001 7 First issue. 04-Jun-2014 8 Updated DPAK and IPAK package information and reformatted to current standard. DocID5202 Rev 8 FLC10 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. 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