SIEMENS SLB 0587 free download

File name SLB0587 .pdf

SLB 0587 Dimmer IC for Halogen Lamps Preliminary Data Features q q q q q q q q SLB 0587 CMOS IC Phase control for resistive and inductive loads Sensor operation ­ no machanically moved switching elements Operation possible from several extensions Capable of replacing electromechanical wall switches in conventional light installations High interference immunity, even against ripple control signals Programming input for selection of three different functions (mode A/B/C) Soft start Safety turn-OFF Ordering Code Q67100-A8310 Q67106-A8315 Package P-DIP-8 P-DSO-8-1 (SMD) P-DSO-8-1 P-DIP-8 Type SLB 0587 SLB 0587 G t New Type For applications where the SLB 0586 A has been used, it is possible to replace the SLB 0586 A by the SLB 0587 if the appropriate external wiring in accordance with the data sheet is maintained. The SLB 0587 is a CMOS IC and the advanced version of the version SLB 0586 A. The IC permits the design of digital electronic phase controls for operation of incandes-cent lamps, low-voltage halogen lamps with in-series connected transformers, and universal as well as split-pole motors. Semiconductor Group 1 09.94 SLB 0587 SLB 0587 SLB 0587 G Pin Configuration (top view) Pin Definitions and Functions Pin 1 2 3 4 5 6 7 8 Symbol Function V DD IPROG IPLL ISYNC ISEN IEXT V SS QT Reference point (OV) Programming input Integrator for PLL Synchronizing input Sensor input Extension input Supply voltage Trigger pulse output Semiconductor Group 2 SLB 0587 Figure 1 Block Diagram Semiconductor Group 3 SLB 0587 Functional Description With the SLB 0587 it is possible to generate one defined current pulse per line half cycle. Together with a triac and a few extra passive components, a line-powered phase-control circuit can be designed. The phase-control angle (turn-ON time of the triac) can be set on the two control inputs, pins 5 and 6, of the IC. The voltage supply to the IC in a two-wire connection is ensured by limiting the angle of current flow to approx. 152°. This makes it simple to exchange mechanical wall switches in conventional lighting installations. The IC's internal logic is synchronized with the line by PLL. Thus a phase control range independent of the line frequency is obtained. Operation with Low-Voltage Halogen Lamps In normal, resistive operation of a phase control circuit there is alternately part of the positive and negative line-voltage half cycle applied to the load via the triac that has started to conduct because of the trigger pulse. Operation of the circuit with a transformer and low-voltage halogen lamp connected is largely identical to the operation of a normal filament lamp due to the primarily resistive nature of the load. In operation with resistive and inductive portions of load, the zero crossing of the current compared to that of the line voltage line is delayed. In operation with heavily inductive loads (eg an idling transformer after lamp failure), a highly lossy state (half cycle operation) can oc