U217B-FP
U217B-FP is Zero Voltage Switch / Temperature Control manufactured by TEMIC Semiconductors.
Features
D Direct supply from the mains
D Current consumption ≤ 0.5 m A
D Very few external ponents
D Full wave drive
- no d.c. current ponent in the load circuit
D Negative output current pulse typ. 100 m A
- short circuit protected
D Simple power control D Ramp generator D Reference voltage
Case: DIP 8, SO 8
Figure 1 Block diagram and pin connections
Preliminary Information
U 217 B / U 217 B- FP
TELEFUNKEN Semiconductors
Figure 2 Typical circuit
- Period group control 0 ... 100 %
General Description
Integrated circuit, U 217 B, is a triac controller for zero crossing mode. It is meant to control power in switching resistive loads of mains supply.
Informations regarding supply sync. is provided at Pin 8 via resistor RSync.
To avoid d.c. load on the mains, full wave logic guarantee that plete mains cycles are used for...
