U2350B-FP Datasheet | TEMIC Semiconductors

Description The monolithic integrated bipolar circuit U2350B is a MOSFET or IGBT - control circuit which works on the principle of pulse width modulation (PWM). The overall concept enables the construction of a power controller with mains voltage pensation where intermittent operation is also possible. In addition, the circuit also enables mains-voltage pensated current control, which maintains the power supplied at a constant level after the preset threshold has been exceeded. Features D D D D D D D D Pulse width control up to 30 k Hz clock frequency Mains supply pensation Current regulation Temperature monitoring with indicator Active operation indicator Blink-warn indicator Switchable to interval operation Push-pull output stage for separate supply Package: SO16 D Supply voltage monitoring D Temperature pensated supply voltage limitation Applications D Domestic equipment D Tools Block Diagram 2 LED control 1 +VS 16 GND Voltage limitation 12 Push- pull output 15 14 13 8 6 7 Oscillator Temperature monitoring Output control PWM Control 10 9 5 Tristate Program logic Current limitation 95 10873 Figure 1. Block diagram TELEFUNKEN Semiconductors Rev. A1, 29-May-96 1 (9) 2 (9) R1 VM = 230 V~ 56 k W/ 2W +VS D3 red 2 LED - logic IGBT 14 T1 3 420 m V + - 100% 4 GND 12 Multi Stop Normal Progr.- logic parator 2 - + R 11 6 Voltage monitoring Oscillator 1.2 V/ 1.5 V 10 S1 R9 120 k W Impedance converter S3 S2 8 parator 1 - + 9 C1 10 n F 95 10868 D2 M green 1 16 D1 15 Push pull stage BYT86 - 800 47 m F/ 350 V C6 Supply voltage limitation R 12 R10 82 k W 80% Q S 13 R Q R12 10 k W Output stage logic C7 + 350 m V - +V S open...