For troubleshooting, a common practice is to disconnect the load (e.g., the horizontal output transistor) and connect a dummy load (like a 60W incandescent lamp) to the main B+ output. If the lamp lights up and the B+ voltage is present and stable, the STR-F6267 is likely functional, and the fault lies elsewhere in the secondary circuits.
The IC features a dedicated burst-mode or PRC (Pulse Ratio Control) operation during light-load conditions. This significantly drops standby power consumption to meet global energy-saving standards. 3. Comprehensive Protection Suite
If the IC has no voltage on Pin 4 despite the main filter capacitor being charged to roughly 300V DC, inspect the high-value startup resistors for open-circuit failure.
: Features a frequency jittering circuit to further minimize EMI and a feedback mechanism for precise voltage regulation. Soft Start Functionality str f6267 datasheet pdf
It is known for its robust protection suite. The thermal shutdown is particularly effective at preventing the IC from burning out during heavy loads or poor ventilation.
The is a highly efficient, off-line switching regulator integrated circuit (IC) manufactured by Sanken Electric Co., Ltd. , designed specifically for Switched-Mode Power Supplies (SMPS) and quasi-resonant flyback converter applications . By combining a primary control and drive circuit with an avalanche-guaranteed power MOSFET on a single monolithic chip, this IC radically reduces external component counts, simplifies PCB layout design, and improves thermal efficiency. STR-F6267 SANKEN Discrete Semiconductors
Utsource and Jotrin Electronics provide summarized parameters and functional descriptions. Are you planning to use this IC in a , or STR-F6267 - SANKEN - Jotrin Electronics For troubleshooting, a common practice is to disconnect
Automatically turns off the MOSFET if the junction temperature exceeds approximately 140°C. Standard Application Circuit
Important: Always verify the exact pin configuration via the , as variations can exist in different manufacturers' sub-versions. Common Applications The STR-F6267 is primarily used in:
: Low external component count needed to build a power supply. This significantly drops standby power consumption to meet
The STR-F6267 integrates:
Choosing the STR-F6267 for a power supply design offers several tangible benefits for engineers: