U2008B Datasheet | TEMIC Semiconductors

Description The U2008B is designed as a phase control circuit in bipolar technology. It enables load-current detection as well as mains-pensated phase control. Motor control with load-current feedback and overload protection are preferred applications. Features D Full wave current sensing D Mains supply variation pensated D Variable soft-start or load-current sensing D Voltage and current synchronization D Automatic retriggering switchable D Triggering pulse typ. 125 m A D Internal supply-voltage monitoring D Current requirement 3 m A v Applications D Low cost motor control D Domestic appliance Package: DIP8, SO8 Block Diagram 22 k W/2W 230 V ~ 330 k W Load 7 Limiting detector Voltage detector 6 Mains voltage pensation R2 R1 BYT51K D1 amax 1 MW 96 11643 R8 Automatic retriggering Phase control unit TIC 226 R3 180W 8 Current detector - VS 22 m F/ 25 V C1 ö = f (V3) Supply voltage limiting Full wave load current detector Soft start 2 3 + - Reference voltage Voltage monitoring R14 47 k W R10 R6 ^ V(R6) = ±250 m V C3 3.3 n F C4 100 n F 100 k W Set point R7 P1 50 k W Load current pensation 12 k W Figure 1. Block diagram with typical circuit: Load current sensing TELEFUNKEN Semiconductors Rev. A1, 28-May-96 1 (10) 230 V ~ L 680 k W Load 7 Limiting detector Voltage detector 6 Mains voltage pensation R2 22 k W/2W R1 D1 BYT51K amax 470 k W 96 11644 R8 Automatic retriggering TIC 226 R3 180W 8 Current...