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TDA1675 データシート(PDF) 4 Page - STMicroelectronics |
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TDA1675 データシート(HTML) 4 Page - STMicroelectronics |
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4 / 11 page ![]() AC ELECTRICAL CHARACTERISTICS (Refer to A.C. test circuit of fig. 2, Tamb = 25 oC, VS = 24V, f = 50Hz, unless otherwise specified) Symbol Parameter Test conditions Min. Typ. Max. Unit IS Supply Current IY = 2APP 295 mA I5 Sync Input Current Required to Sync 100 µA V1 Flyback Voltage Iy = 2App 50 V V3 Peak-to-peak Oscillator Sawtooth Voltage I5 = 0 I5 = 100 µA 3.6 3.4 V V V10TH(L) Start Scan Level of the Input Ramp 1.85 V tFLY Flyback Time Iy = 2App 0.6 ms tBLANK Blanking Pulse Duration fo = 50Hz, Tj = 75 oC fo = 60Hz, Tj = 75 oC 1.33 1.4 1.17 1.47 ms ms fo Free Running Frequency Ro = 7.5k Ω, Co = 330nF, Tj = 75oC Ro = 6.2k Ω, Co = 330nF, Tj = 75oC 42 43.5 52.5 46 Hz Hz ∆f Synchronization Range I5 = 100 µA, Tj = 75oC14 16 Hz Tj Junction Temperature for Thermal Shut-down 145 oC VON Peak-to-peak Output Noise 35 mVPP 0.22µF YOKE 10mH 47µF 2200µF R f 1 2 13 14 15 12 7 8 9 10 11 100k Ω 56k Ω 220k Ω HEIGHT 4 6 3 S2 SERVICE SWITCH 5 BLANKING OUT SYNC. IN +V S 2.4k Ω 1N4001 220µF TDA 1675A 2.4k Ω LINEARITY 0.1µF Co 0.1µF 0.1µF IY A B 4.7k Ω (FREQ.) t blank 100µA t sync. V10 V10thL 1/fo GND R f 1/fo Iy V3 1/fo t blank S1 (R ) o V1 1/fo GND t f Iy Figure 2 : AC Test Circuit TDA1675A 4/11 |
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