U210B Datasheet (TEMIC Semiconductors) - Phase Control Circuit

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

U210B 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 Bl