Str F6267 Datasheet Pdf Updated [2021] Jun 2026

: Limits peak drain current pulse-by-pulse.

Off-line SMPS (Switching Mode Power Supply) Primary IC [3] Key Features: Internal high-voltage avalanche-guaranteed MOSFET. Built-in Pulse Width Modulation (PWM) control.

The STR-F6267 is a hybrid integrated circuit (IC) designed specifically for switch-mode power supplies (SMPS). Manufactured by Sanken Electric, this device integrates a power MOSFET and a controller chip into a single package. This documentation serves as an updated technical guide for engineers, technicians, and electronics hobbyists looking for data sheets, pin configurations, and operational parameters. Technical Specifications Overview

A typical application circuit using the STR-F6267 involves a rectifier bridge, a high-voltage capacitor, a transformer, and the STR-F6267 acting as the main switcher.

Inputs error-amplifier control signals and monitors cycle-by-cycle overcurrent conditions. 3. Absolute Maximum Ratings str f6267 datasheet pdf updated

The updated STR-F6267 datasheet highlights three critical protection layers engineered to maximize system reliability:

: Slightly varies the internal switching frequency to distribute harmonic energy, significantly suppressing EMI noise and simplifying line-filtering requirements.

The STR-F6267 belongs to the STR-F6200 series of regulators. It is widely used in consumer electronics like CRT televisions, monitors, and audio power supplies due to its robust protection features and minimal external component requirements. Key Features Avalanche-energy guaranteed. Low Startup Current: Only maximum startup current.

Note: The exact pinout numbering might slightly vary depending on the manufacturer’s revision, so verify with the PDF schematic. Application Circuit and Typical Usage : Limits peak drain current pulse-by-pulse

: Features frequency jittering to reduce EMI noise and a soft-start circuit to prevent power-up stress. Pinout Configuration

) will often burn open. Always replace it with a flameproof resistor of the exact same value.

Fully integrated protection matrices safeguard the power supply against catastrophic failures.

While different manufacturers may use slightly varied naming conventions, the typical 5-pin configuration for the Sanken STR-F6267 series is often focused on the following functions: Pin Number Description Ground reference. Vcc Power supply input for the IC. FB Feedback input for voltage regulation. CS Current sense input for peak current detection. DRAIN High-voltage MOSFET drain connection. The STR-F6267 is a hybrid integrated circuit (IC)

Pin 5 is crucial for sensing current. If the current exceeds a set threshold, the IC stops switching, preventing damage to the power supply.

Local source for industrial components. Conclusion

pin. If the auxiliary winding voltage surges beyond due to an open feedback loop, the OVP latching circuit halts the switching operation. Power must be cycled to reset this state.

The is a highly integrated, off-line switching regulator IC specifically engineered for Switched-Mode Power Supplies (SMPS). Found globally in legacy consumer electronics—such as CRT television chassis like the Sony KV-21CL1K —this powerful component consolidates a high-voltage power MOSFET and a current-mode PWM controller into a single, compact package.