U211B3 Temic Semiconductors (acquired by ATMEL Corporation), U211B3 Datasheet - Page 14

• Manufacturer Part Number: U211B3
• Description: Phase Control Circuit - General Purpose Feedback
• Manufacturer: Temic Semiconductors (acquired by ATMEL Corporation)

The switch-off level at maximum load shows in principle
the same speed dependency as the original version (see
figure 2), but when reaching the maximum load, the
motor is switched off completely.
U211B2/ B3
14 (20)
Figure 23. Speed control, automatic retriggering, load switch-off, soft start
This function is effected by the thyristor (formed by T
and T
typ. 7.4 V (Reference point Pin 16). The circuit is thereby
switched into the “stand-by” over the release Pin 18.
2)
which ignites when the voltage at Pin 15 reaches
TELEFUNKEN Semiconductors
Rev. A1, 29-May-96
1