U210B1

www.DataSheet4U.com U210B1 Phase Control Circuit–Load Current Feedback Applications Description The interated circuit, U210B1, is designed as a phasecontrol circuit for load-current feedback application in bipolar technology. To realize motor control systems, it has integrated load current detection, voltage monitoring and soft-start functions. The voltage obtained due to load current proportionality, can be used according to the application i.e., load-current compensation or loadcurrent regulation. Features D Externally controlled integrated amplifier D Variable soft start D Automatic retriggering D Voltage and current synchronization D Triggering pulse typ. 125 mA D Internal supply voltage monitoring D Temperature constant reference source D Current requirement ≤ 3 mA Package: DIP14 14 Voltage detector 1 Current detector Automatic retriggering Output pulse 4 5 Control amplifier 6 8 + – 7 Phase control unit ö = f (V12) 3 Supply voltage limitation Reference voltage Voltage monitoring 2 13 –VS GND Load current detection Soft start 12 11 9 10 95 10686 Figure 1. Block diagram TELEFUNKEN Semiconductors Rev. A1, 28-May-96 1 (12) U210B1 2 (12) 1N4007 D1 R1 M L 18 k W 1.5 W R3 220 kW 95 10693 R4 470 k W 1 Current detector Output pulse 100 W 5 6 3 Supply voltage limitation Reference voltage Voltage monitoring R 2 220 k W 10 nF C2 2 –VS 13 GND C1 C5 50 m W R8 Automatic retriggering 4 R 12 BTA 12–800 VM = 230 V 14 Voltage detector R9 10 kW Set speed voltage ...