onsemi NCP1239KD65R2G, PWM Controller, 35 V, 65 kHz 7-Pin, SOIC
- RS Stock No.:
- 178-4345
- Mfr. Part No.:
- NCP1239KD65R2G
- Brand:
- onsemi
Available to back order for despatch 23/12/2024
Added
Price Each (On a Reel of 2500)
£0.284
(exc. VAT)
£0.341
(inc. VAT)
| Units | Per unit | Per Reel* |
| 2500 + | £0.284 | £710.00 |
| *price indicative | ||
- RS Stock No.:
- 178-4345
- Mfr. Part No.:
- NCP1239KD65R2G
- Brand:
- onsemi
Technical Reference
Legislation and Compliance
- COO (Country of Origin):
- PH
Product Details
The NCP1239 is a fixed-frequency current-mode controller featuring a high-voltage start-up current source to provide a quick and lossless power-on sequence. This function greatly simplifies the design of the auxiliary supply and the VCC capacitor by activating the internal start-up current source to supply the controller during start-up, transients, latch, stand-by etc. With a supply range up to 35 V, the controller hosts a jittered 65 or 100-kHz switching circuitry operated in peak current mode control.
Fixed-Frequency 65-kHz or 100-kHz Current-Mode Control Operation
Frequency Foldback Down to 26 kHz and Skip Mode to Maximize Performance in Light Load Conditions
Adjustable Over Power Protection (OPP) Circuit
High-Voltage Current Source with Brown-Out (BO) Detection
Internal Slope Compensation
Internal Fixed Soft-Start
Frequency Jittering in Normal and Frequency Foldback Modes
64-ms Timer-Based Short-Circuit Protection with Auto-Recovery or Latched Operation
Frequency Foldback Down to 26 kHz and Skip Mode to Maximize Performance in Light Load Conditions
Adjustable Over Power Protection (OPP) Circuit
High-Voltage Current Source with Brown-Out (BO) Detection
Internal Slope Compensation
Internal Fixed Soft-Start
Frequency Jittering in Normal and Frequency Foldback Modes
64-ms Timer-Based Short-Circuit Protection with Auto-Recovery or Latched Operation
Specifications
Attribute | Value |
|---|---|
| Maximum Switching Frequency | 65 kHz |
| Output Voltage | 16 V |
| Output Current | 500 mA, 500 mA |
| Control Method | Current |
| Number of Outputs | 1 |
| Fall Time | 30ns |
| Mounting Type | Surface Mount |
| Rise Time | 40ns |
| Package Type | SOIC |
| Pin Count | 7 |
| Topology | Flyback |
| Dimensions | 5 x 4 x 1.5mm |
| Maximum Duty Cycle | 84% |
| PWM Controller Type | Current Mode |
| Length | 5mm |
| Width | 4mm |
| Height | 1.5mm |
| Maximum Operating Supply Voltage | 35 V |
| Maximum Operating Temperature | +150 °C |