Recherchez avec le numéro de pièce ainsi que le fabricant ou la description
Pin No. Pin Name 1 GND 2 FB Function − Feedback pin 3 NC Non−connected pin 4 CS Current sense + ramp compensation 5 VCC Supplies the controller – protects the IC 6 DRV Driver output Description The controller ground. Hooking an optocoupler collector to this pin will allow regulation. The pin is electrically inert and can be grounded if nec.
Fixed−Frequency 65 kHz or 100 kHz Current−Mode Control
Operation
Frequency Foldback Down to 26 kHz and Skip−Cycle in Light Load
Conditions
Adjustable Ramp Compensation
Internally Fixed 4 ms soft−start
Timer−based Auto−Recovery or Latched Short−Circuit Protection
Frequency Jittering in Normal and Frequency Foldback Modes
Latched OVP on VCC
Up to 28 V VCC Operation
Extremely Low No−load Standby Power
These are Pb−Free Devices
Typical Applications
Ac−dc Converters for TVs, Set−top Boxes and Printers
Offline Adapters for Notebooks and Netbooks
MARKING DIAGRAM
TSOP−6
CASE.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | NCP1250 |
ON Semiconductor |
Current-Mode PWM Controller |
|
| 2 | NCP1251 |
ON Semiconductor |
Current-Mode PWM Controller |
|
| 3 | NCP12510 |
ON Semiconductor |
Current-Mode PWM Controller |
|
| 4 | NCP1252 |
ON Semiconductor |
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 |
|