(China (Mainland))
Product Summary
The LXT905LC control ICs comprise 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 component of the LXT905LC 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
LXT905LC absolute maximum ratings: (1)Output K5 VQ K5: – 0.3 33 V; (2)Input op amp TDA 4700; A VI Op Amp: – 0.3 33 V; (3)Output op amp TDA 4700; A VQ Op Amp: – 0.3 VS – 1max. 7V; (4)Reference voltage VREF: – 0.3 VREF V; (5)Input Csoft start VI soft start: – 0.3 7 V; (6)Junction temperature Tj: 150℃; (7)Storage temperature Tstg: 55~125℃; (8)Current at Q1, Q2 IQ: 70 mA Q1, Q2 low; (9)Symmetry 1, 2 TDA 4700; A VSYM: – 0.3 33 V.
Features
LXT905LC 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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