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U2008B

TEMIC Semiconductors
Part Number U2008B
Manufacturer TEMIC Semiconductors
Description Low Cost Current Feedback Phase Control Circuit
Published Apr 16, 2005
Detailed Description U2008B Low Cost Current Feedback Phase Control Circuit Description The U2008B is designed as a phase control circuit in ...
Datasheet PDF File U2008B PDF File

U2008B
U2008B

Overview
U2008B Low Cost Current Feedback Phase Control Circuit Description The U2008B is designed as a phase control circuit in bipolar technology.
It enables load-current detection as well as mains-compensated phase control.
Motor control with load-current feedback and overload protection are preferred applications.
Features D Full wave current sensing D Mains supply variation compensated D Variable soft-start or load-current sensing D Voltage and current synchronization D Automatic retriggering switchable D Triggering pulse typ.
125 mA D Internal supply-voltage monitoring D Current requirement 3 mA v Applications D Low cost motor control D Domestic appliance Package: DIP8, SO8 Block Diagram 22 kW/2W 230 V ~ 330 kW Load 7 Limiting detector Voltage detector 6 Mains voltage compensation R2 R1 BYT51K D1 amax 1 MW 96 11643 R8 Automatic retriggering Phase control unit 5 TIC 226 R3 180W 8 Current detector –VS 22 mF/ 25 V C1 ö = f (V3) Supply voltage limiting 4 GND 1 Full wave load current detector Soft start 2 3 + – Reference voltage Voltage monitoring R14 47 kW R10 R6 ^ V(R6) = ±250 mV C3 3.
3 nF C4 100 nF 100 kW Set point R7 P1 50 kW Load current compensation 12 kW Figure 1.
Block diagram with typical circuit: Load current sensing TELEFUNKEN Semiconductors Rev.
A1, 28-May-96 1 (10) U2008B 230 V ~ L 680 kW Load 7 Limiting detector Voltage detector 6 Mains voltage compensation R2 22 kW/2W R1 D1 BYT51K amax 470 kW 96 11644 R8 Automatic retriggering TIC 226 R3 180W 8 Current detector Phase control unit ö = f (V3) Supply voltage limiting 5 –VS C1 100 mF/ 25 V 4 GND 1 Full wave load current detector Soft start 2 3 + – Reference voltage Voltage monitoring R10 C5 Soft start 4.
7mF/ 25 V C3 10 nF N C4 100 nF 68 kW Set point R7 50 kW P1 220 kW Figure 2.
Block diagram with typical circuit: Soft start 2 (10) TELEFUNKEN Semiconductors Rev.
A1, 28-May-96 U2008B Pin Description Isense Cϕ Control 1 8 Output Pin 1 2 3 4 5 6 7 8 Symbol Isen...


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