U210B - TEMIC Semiconductors

U210B Phase Control Circuit - Load Current Feedback Applications

Mains supply The U 210 B is fitted with voltage limiting and can therefore be supplied directly from the mains. The supply voltage between Pin 2 (+pol/ă) and Pin 3 builds up across D1 and R1 and is smoothed by C1. The vaIue of the series resistance can be approximated using: R1= VM–VS 2 IS Further information regarding the design of the mains supply can be .

Features

D Externally controlled integrated amplifier D Variable soft start D Automatic retriggering D Voltage and current synchronisation D Triggering pulse typ. 125 mA D Internal supply voltage monitoring D Temperature constant reference source D Current requirement ≤ 3 mA Case: DIP 14, SO 16 Figure 1 Block diagram Preliminary Information 1 U 210 B / U 210 B
  –FP TELEFUNKEN Semiconductors Figure 2 Block diagram with external circuitry Open loop control with load current compensation 2 Preliminary Information TELEFUNKEN Semiconductors U 210 B / U 210 B
  –FP Description Mains supply The U 210 B .