Recherchez avec le numéro de pièce ainsi que le fabricant ou la description
Pin N5 PDIP−8 TSSOP−6 11 62 Pin Name GND FB 8 3 OPP/OVP 5 4 CS 4 5 VCC 2 6 DRV Function − Feedback pin Adjust the Over Power Protection Latches off the part Current sense + ramp compensation Supplies the controller Driver output Pin Description The controller ground. Hooking an optocoupler collector to this pin will allow regulation. A resistive divider.
• Fixed−Frequency 65 or 100 kHz Current−Mode Control Operation
• Internal and Adjustable Over Power Protection (OPP) Circuit
• Frequency Foldback Down to 26 kHz and Skip−Cycle in Light Load
Conditions
• Internal Ramp Compensation
• Internal Fixed 4 ms Soft−Start
• 100 ms Timer−Based Auto−Recovery Short−Circuit Protection
• Frequency Jittering in Normal and Frequency Foldback Modes
• Option for Auto−Recovery or Latched Short−Circuit Protection
• OVP Input for Improved Robustness
• Up to 28 V VCC Operation
• +300 mA/−500 mA Source/Sink Drive Capability
• Less than 100 mW Standby Power at High Li.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | NCP1251 |
ON Semiconductor |
Current-Mode PWM Controller |
|
| 2 | NCP12510 |
ON Semiconductor |
Current-Mode PWM Controller |
|
| 3 | NCP1252 |
ON Semiconductor |
PWM Controller |
|
| 4 | NCP1253 |
ON Semiconductor |
Current-Mode PWM Controller |
|
| 5 | NCP1254 |
ON Semiconductor |
Current-Mode PWM Controller |
|
| 6 | NCP1255 |
ON Semiconductor |
Current-Mode PWM Controller |
|
| 7 | NCP1256 |
ON Semiconductor |
Low Power Offline PWM Controller |
|
| 8 | NCP120 |
ON Semiconductor |
Very Low Dropout Bias Rail CMOS Voltage Regulator |
|
| 9 | NCP1200 |
ON Semiconductor |
PWM Current-Mode Controller |
|
| 10 | NCP1200A |
ON Semiconductor |
PWM Current-Mode Controller |
|
| 11 | NCP1200CH |
ON Semiconductor |
PWM Controller |
|
| 12 | NCP1200D |
ON Semiconductor |
PWM Controller |
|