| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
1,000 pcs
|
1000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Control Features | |
| Duty Cycle | |
| Fault Protection | |
| Frequency | |
| Internal Switch(s) | |
| Mounting Type | |
| Operating Temperature | |
| Output Isolation | |
| SVHC Present | |
| Supplier Device Package | |
| Topology | |
| Voltage |
The NCP1239LD65R2G from ON Semiconductor is a fixed-frequency, current-mode controller specifically designed for flyback converter applications. This integrated circuit features a high-voltage start-up current source for efficient power-on sequences and operates with a supply voltage range of 8.8V to 35V.
Key electrical specifications include a nominal switching frequency of 65kHz, with frequency foldback down to 26kHz for improved light-load efficiency. It offers a duty cycle of 80% and incorporates various fault protection mechanisms such as over load, over power, over temperature, over voltage, and short circuit protection. The controller also features soft start functionality.
Packaged in a 7-SOIC (8-SOIC) surface mount package, the NCP1239LD65R2G is designed for efficient operation in AC-DC converters for devices like TVs, set-top boxes, and printers, as well as offline adapters for notebooks and netbooks. Its operating temperature range is -40°C to 125°C (TJ).
| Qty | Low | High |
|---|---|---|
| 1+ | $0.75 | $0.75 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operating voltage range is 8.8V to 35V.
The nominal switching frequency is 65kHz, with frequency foldback down to 26kHz.
It is available in a surface mount 7-SOIC package (8-SOIC with 7 leads).
The operating junction temperature range is -40°C to 125°C.
It includes current limiting, over load, over power, over temperature, over voltage, and short circuit protection.
No, it does not have an internal switch.
It is designed for flyback topology with output isolation.