Str F6267 Datasheet Pdf Updated -

| Pin No. | Symbol | Description | Voltage/Function | | :--- | :--- | :--- | :--- | | 1 | | MOSFET drain & internal start-up current input | High voltage (650V max) | | 2 | S (Source) | MOSFET source & primary ground reference | 0V (GND) | | 3 | VCC | Control IC supply voltage | 16V typ. (OVP at 24V) | | 4 | FB (Feedback) | Feedback pin from secondary side (opto-coupler) | 0 to 6V range | | 5 | OCP/FB (Combined) | Overcurrent/FB latch input (often labeled as "GND" in older datasheets) | < 0.75V for operation |

: Includes integrated over-voltage (OVP), over-current (OCP), and thermal shutdown (OTP) protection. Operational Range str f6267 datasheet pdf updated

| Parameter | Symbol | Rating | Unit | | :--- | :--- | :--- | :--- | | Drain-Source Voltage | Voss | 650 | V | | Drain Current (Pulsed) | Id(pulse) | 16 | A | | Supply Voltage (VCC) | Vcc | 32 (OVP at 24V) | V | | Feedback Voltage Range | Vfb | -0.3 to +6 | V | | Operating Junction Temp | Tj | -40 to +150 | °C | | Minimum ON Resistance | Rds(on) | 1.5 (typ at 25°C) | Ω | | Pin No

Use a multimeter to check for a short between Pin 1 (Drain) and Pin 2 (Source). A short here indicates internal catastrophic failure. Operational Range | Parameter | Symbol | Rating

The updated document clarifies which faults cause vs latch-off . Overload (OLP) triggers auto-restart (1 second hiccup), while OVP on VCC triggers a full latch (requires AC power cycling).