Protects the primary switch from sudden inductive voltage spikes occurring across the main transformer. Practical Applications
Full PDF datasheets and technical diagrams can be sourced from major electronic component distributors:
High-voltage DC (around 300V DC from the rectified AC mains) flows through a high-value startup resistor to Pin 4 ( VCCcap V sub cap C cap C end-sub VCCcap V sub cap C cap C end-sub str f6267 datasheet pdf upd
When AC main power is applied, voltage feeds through a startup resistor to charge an external capacitor connected to the pin. Once the voltage hits the start-up threshold (
By checking for UPD information, designers and developers can ensure that they have the latest and most accurate information for their designs. Protects the primary switch from sudden inductive voltage
Power supply input pin for the internal control circuit. Startup current is fed here through a resistor from the main DC filter capacitor. FB (Feedback) / OLPs
: AC/DC adapters and high-efficiency battery chargers. Industrial Equipment : Motor drivers and LED drivers. Equivalents and Replacements Power supply input pin for the internal control circuit
: Includes over-voltage protection (OVP), over-current protection (OCP), and thermal shutdown (OTP) to prevent damage during fault conditions Soft Start