NCP1239LD65R2G AC-DC Power Conversion by ON Semiconductor
Fixed Frequency Current Mode Controller for Flyback Converter with HV startup
| Status: | Active |
|---|---|
| Series: | NCP1239 |
| RoHS: | Compliant |
Features
| Fixed-frequency 65-kHz or 100-kHz current-mode control operation |
| Frequency foldback down to 26 kHz and skip mode |
| Adjustable Over Power Protection (OPP) circuit |
| High-voltage Current Source with Brown-out (BO) detection |
| Internal fixed 8-ms soft-start |
| Frequency jittering in normal and frequency foldback modes |
| 64-ms timer-based short-circuit protection with auto-recovery or latched operation |
| Pre-short ready |
| Latched OVP on Vcc (NCP1239 A & B versions) |
| Latched OVP/OTP input for improved robustness |
| +500 mA/ -500 mA peak source/sink drive capability |
| Internal thermal shutdown |
| Extremely low no-load standby power |
| Pin-to-pin compatible with the existing NCP1236/1247 series |
| Internal ramp compensation |
| 35-V Vcc operation |
| Benefits |
|---|
| Fixed-frequency is simple to implement and predictable in term of EMI |
| Maximize performance in light load conditions |
| OPP can be adjusted to the need of specific applications |
| BO monitor and detect a falling input voltage, needed in some applications |
| Simplified implementation that does not require programming |
| Lowers switching frequency EMI |
| Allows for safe operation while tolerant to faults if needed |
| Safe operation yet tolerant to faults |
| Safe operation |
| Safe operation |
| Can drive larger FETs |
| Safe operation |
| Ideal for environmentally friendly applications |
| Enable cost saving compared to other device |
| Applications |
|---|
| Auxiliary Power |
| AC/DC Power Adapters |
| End Products |
|---|
| Industrial Power |
| Set-top Box |
Specifications
| Description | NCP1239 |
|---|---|
| Compliance | Pb-free Halide free |
| Topology | Flyback |
| Control Mode | Current Mode |
| fsw Typ (kHz) | 65 |
| Stand-by Mode | Yes |
| UVLO (V) | 8 |
| Short Circuit Protection | Yes |
| Latch | Yes |
| Soft Start | Yes |
| VCC Max (V) | 35 |
| Drive Cap. (mA) | 500 / 500 |
| Package Type | SOIC-7 |
Last 6 months Inventory & Pricing History
Alternative Descriptions
| Fixed Frequency Current Mode Controller For Flyback Converter With Hv Startup/ Reel |Onsemi NCP1239LD65R2G | Newark Electronics |
| PWM CONTROLLERS | Farnell |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a NCP1239LD65R2G?
Additional datasheets, footprints and schematics for NCP1239LD65R2G are listed on our Part Details page. You can also find images and similar parts to NCP1239LD65R2G on this page.
What pricing and inventory information can I view?
Distributor pricing and stock information is available for NCP1239LD65R2G on our Product Comparison page. Access via the 'View Pricing & Stock' button to view NCP1239LD65R2G price breaks, MOQs, lead times, inventory and SKUs from distributors.
What category does NCP1239LD65R2G fall under?
The NCP1239LD65R2G is listed under Power Management > AC-DC Power Conversion > Offline Controllers.
Can I view similar or alternative parts?
You can view similar parts to NCP1239LD65R2G when available in the Offline Controllers range under the specifications section at the bottom of the details page.
Who can I contact for technical support of the product?
Submit any questions directly to the customer support team of the distributor listing the product. For the NCP1239LD65R2G you can contact the distributor directly for product support, shipping queries etc.
Is the NCP1239LD65R2G RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by ON Semiconductor.
Which authorised distributors for NCP1239LD65R2G have stock available?
Authorised distributors including Newark Electronics, Avnet America, Farnell, EBV Elektronik and Avnet Silica have stock available or on a lead time for NCP1239LD65R2G.
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