(China (Mainland))
Product Summary
The versatile SMPS control TDA4718A comprises digital and analog functions which are required to design highquality flyback, single-ended and push-pull converters in normal, half-bridge and full-bridge configurations. The TDA4718A component can also be used in single-ended voltage multipliers and speed-controlled motors. Malfunctions in electrical operation are recognized by the integrated operational amplifiers, which activate protective functions.
Parametrics
TDA4718A absolute maximum ratings: (1)Supply voltage Voltage at Q1, Q2, VS: - 0.3 to 33V; VQ: - 0.3 to 33V; (2)Current at Q1, Q2: 70 mA; (3)Symmetry 1, 2 TDA 4700; A VSYM: - 0.3 to 33 V; (4)Output K5 VQ K5: -0.3 to 33 V; (5)Input op amp TDA 4700; A VI Op Amp: - 0.3 33 V; (6)Output op amp TDA 4700; A VQ Op Amp: - 0.3 VS - 1; (7)Reference voltage VREF: - 0.3 VREF V; (8)Input Csoft start VI soft start: - 0.3 7 V; (9)Junction temperature, Tj: 150℃; (10)Storage temperature, Tstg: - 55 to 125 ℃.
Features
TDA4718A features: (1)Feed-forward contro(line hum suppression); (2)Symmetry inputs for push-pulconverter (TDA 4700); (3)Push-puloutputs; (4)Dynamic output current limitation; (5)Overvoltage protection; (6)Undervoltage protection; (7)Soft start; (8)Double pulse suppression.
Diagrams
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