onsemi NCP1239KD65R2G, PWM Controller, 35 V, 65 kHz 7-Pin, SOIC
- RS Stock No.:
- 178-4660P
- Mfr. Part No.:
- NCP1239KD65R2G
- Brand:
- onsemi
Bulk discount available
Subtotal 100 units (supplied on a continuous strip)*
£55.60
(exc. VAT)
£66.70
(inc. VAT)
FREE delivery for orders over £50.00
Temporarily out of stock
- 999,999,990 unit(s) shipping from 06 April 2026
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Units | Per unit |
|---|---|
| 100 - 240 | £0.556 |
| 250 - 490 | £0.482 |
| 500 - 990 | £0.424 |
| 1000 + | £0.386 |
*price indicative
- RS Stock No.:
- 178-4660P
- Mfr. Part No.:
- NCP1239KD65R2G
- Brand:
- onsemi
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | onsemi | |
| Maximum Switching Frequency | 65 kHz | |
| Output Voltage | 16 V | |
| Output Current | 500 mA, 500 mA | |
| Number of Outputs | 1 | |
| Control Method | Current | |
| Fall Time | 30ns | |
| Mounting Type | Surface Mount | |
| Package Type | SOIC | |
| Rise Time | 40ns | |
| Pin Count | 7 | |
| Topology | Flyback | |
| Dimensions | 5 x 4 x 1.5mm | |
| Maximum Duty Cycle | 84% | |
| Length | 5mm | |
| PWM Controller Type | Current Mode | |
| Width | 4mm | |
| Height | 1.5mm | |
| Maximum Operating Temperature | +150 °C | |
| Maximum Operating Supply Voltage | 35 V | |
Select all | ||
|---|---|---|
Brand onsemi | ||
Maximum Switching Frequency 65 kHz | ||
Output Voltage 16 V | ||
Output Current 500 mA, 500 mA | ||
Number of Outputs 1 | ||
Control Method Current | ||
Fall Time 30ns | ||
Mounting Type Surface Mount | ||
Package Type SOIC | ||
Rise Time 40ns | ||
Pin Count 7 | ||
Topology Flyback | ||
Dimensions 5 x 4 x 1.5mm | ||
Maximum Duty Cycle 84% | ||
Length 5mm | ||
PWM Controller Type Current Mode | ||
Width 4mm | ||
Height 1.5mm | ||
Maximum Operating Temperature +150 °C | ||
Maximum Operating Supply Voltage 35 V | ||
- COO (Country of Origin):
- PH
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