UAA145 TEMIC Semiconductors, UAA145 Datasheet
UAA145
Available stocks
Related parts for UAA145
UAA145 Summary of contents
Page 1
... Phase Control Circuit for Industrial Applications Description The UAA145 is a bipolar integrated circuit, designed to provide phase control for industrial applications. It permits the number of components in thyristor drive Features D Separate pulse output synchronized by mains half wave D Output pulse-width is freely adjustable D Phase angle variable from >0° to <180° ...
Page 2
... UAA145 General Description The operation of the circuit is best explained with the help of the block diagram shown in figure 1. It comprises a synchronizing stage, ramp generator, com-parator, pulse generator, channel selecting stage and two output amplifiers. The circuit diagram in figure 2 also shows the external components and terminal connections necessary for operation of the circuit ...
Page 3
... Pin 16. The pulse shape is valid only ö sync ) are at h for sync pulse of 230 V∼. The lower the sync voltage, longer is the sync pulse minimum (max. 200 required for a pulse symmetry of UAA145 , and charge C . The sync s , the relationship input sync pulse is x" ...
Page 4
... UAA145 v sync 10,14 ö h ö ö Figure 4. Pulse phasing P 7 –0mA P 7 –0V 95 10105 m Charging time 10 Figure 5. Pulse Phasing Limits The pulse phasing front limit is determined by limiting the maximum shift voltage applied to Pin 8 which is thus adjustable by external circuitry. This can be done by connecting a Z-diode between Pin 8 and Pin 3. The pulse ö ...
Page 5
... Rev. A1, 29-May-96 200 160 120 Ref. Voltage 2V/div. 80 20V/div. 20V/div 10295 10 Ref. Voltage 2V/div 20V/div. 4 20V/div 10296 Ref. Voltage 2V/div. 20V/div. 20V/div. UAA145 Pulse Phasing Rear Limit V =0, C =100nF B s 200 40 80 120 160 Figure 10. Output Pulse Width C =50nF t 200 40 80 120 ...
Page 6
... UAA145 0.6 0.5 Saturation Output Voltages 0.4 0.3 0.2 0 10298 10 14 Figure 12. Absolute Maximum Ratings Reference point Pin 25°C, unless otherwise specified amb Parameters Positive supply voltage Shift voltage Reverse voltage, control input Negative supply current Synchronization current Control input pulse current ...
Page 7
... Pin 14 V Osat Symbol Min. Pin Pin 14 Pin 10 t 0.1 p Pin 14 t 0.1 p Dö Dö ö v 177 ö h ö = 0 0°, figures 4 and UAA145 Typ. Max. Unit 30 mA 9.0 V 9.0 9 0.3 1.0 V 0.3 1.0 Type. Max. Unit m s 0.5 0.5 ...
Page 8
... UAA145 Figure 14. Test circuit for ac characteristics Applications Parallel connection for three-phase current applications Figure 15. Parallel connection for three-phase current applications. For polyphase operation connect all Pins 15 and Pins 16. To ensure good pulse phasing symmetry as well as identical shift characteristics in three-phase applications, when three devices are employed, two parallel connection pins (figure 15) are provided on each device ...
Page 9
... Figure 16. Speed control with tacho-generator TELEFUNKEN Semiconductors Rev. A1, 29-May-96 UAA145 9 (11) ...
Page 10
... UAA145 Dimensions (11) Case: DIP 16 (Special case) TELEFUNKEN Semiconductors Rev. A1, 29-May-96 ...
Page 11
... TEMIC against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone 7131 67 2831, Fax number 7131 67 2423 TELEFUNKEN Semiconductors Rev. A1, 29-May-96 unauthorized use. UAA145 11 (11) ...