Recherchez avec le numéro de pièce ainsi que le fabricant ou la description
Pin Name Pin Number Function Fault 1 The controller enters fault mode if the voltage on this pin is pulled above or below the fault thresholds. A precise pull up current source allows direct interface with an NTC thermistor. FB 2 Feedback input for the QR Flyback controller. Allows direct connection to an optocoupler. ZCD/OPP 3 A resistor divider.
a precise, primary side based output current limiting circuit to ensure a constant output current limit regardless of programmed output voltage, or nameplate output power. The quasi−resonant (QR) current−mode flyback stage features proprietary valley−lockout circuitry to ensure stable valley switching down to the 6th valley, then transitions to frequency foldback mode to reduce switching losses. As the load decreases further, the NCP1345 enters skip mode to manage the power delivery. To help ensure converter ruggedness, the NCP1345 implements several key protective features such as internal br.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | NCP134 |
ON Semiconductor |
Very Low Dropout Bias Rail CMOS Voltage Regulator |
|
| 2 | NCP1340 |
ON Semiconductor |
Controller Featuring Valley Lock-Out Switching |
|
| 3 | NCP1341 |
ON Semiconductor |
quasi-resonant flyback controller |
|
| 4 | NCP1342 |
ON Semiconductor |
Quasi-Resonant Flyback Controller |
|
| 5 | NCP130 |
ON Semiconductor |
Very Low Dropout Bias Rail CMOS Voltage Regulator |
|
| 6 | NCP1308 |
ON Semiconductor |
PWM Current Mode Controller |
|
| 7 | NCP133 |
ON Semiconductor |
Very Low Dropout Bias Rail CMOS Voltage Regulator |
|
| 8 | NCP1336A |
ON Semiconductor |
Quasi-Resonant PWM Controller |
|
| 9 | NCP1336B |
ON Semiconductor |
Quasi-Resonant PWM Controller |
|
| 10 | NCP1337 |
ON Semiconductor |
PWM Current Mode Controller |
|
| 11 | NCP1338 |
ON Semiconductor |
PWM Controller |
|
| 12 | NCP1339 |
ON Semiconductor |
QuasiResonant Controller |
|