SPH4692

Siemens Power Hybrid for SMPS Preliminary Data SPH 4692 Bipolar IC Features q Fold-back characteristics provides overload protection for q q q q q q q external components Burst operation under secondary short-circuit condition implemented Protection against open or a short of the control loop Switch-off if line voltage is too low (undervoltage switch-off) Line voltage depending compensation of fold-back point Soft-start for quiet start-up without noise generated by the transformer Chip-over temperature protection implemented (thermal shutdown) On-chip ringing suppression circuit against parasitic oscillations of the transformer P-DIP-18-4 Power MOSFET q VDS = 600 V q R DS ON = 3.0 Ω q Repetitive Avalanche Type SPH 4692 Ordering Code Q67000–A5069 Package P-DIP-18-4 The Siemens Power Hybrid SPH 4692 contains the SMPS IC TDA 4605-3 as well as the SIEMENS POWER MOSFET in a P-DIP-18 package. The IC TDA 4605-3 controls the MOS-power transistor and performs all necessary control and protection functions in free running flyback converters. Because of the fact that a wide load range is achieved, this IC is applicable for consumer as well as industrial power supplies. Semiconductor Group 1 02.95 SPH 4692 The serial circuit and primary winding of the flyback transformer are connected in series to the input voltage. During the switch-on period of the transistor, energy is stored in the transformer. During the switch-off period the energy is fed to the load via the secondary...