- RS Stock No.:
- 178-4344
- Mfr. Part No.:
- NCP1239JD65R2G
- Brand:
- onsemi
Available to back order for despatch 23/12/2024
Added
Price Each (On a Reel of 2500)
£0.316
(exc. VAT)
£0.379
(inc. VAT)
Units | Per unit | Per Reel* |
2500 + | £0.316 | £790.00 |
*price indicative |
- RS Stock No.:
- 178-4344
- Mfr. Part No.:
- NCP1239JD65R2G
- 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 |
Package Type | SOIC |
Rise Time | 40ns |
Topology | Flyback |
Pin Count | 7 |
Maximum Duty Cycle | 84% |
Dimensions | 5 x 4 x 1.5mm |
Length | 5mm |
PWM Controller Type | Current Mode |
Width | 4mm |
Height | 1.5mm |
Maximum Operating Supply Voltage | 35 V |
Maximum Operating Temperature | +150 °C |
Related links
- Hammers
- Hand Saws
- CK Polyester, 4 Pocket Tool Belt Pouch
- Single Parameter(s) Chlorine Test Strips, max. measurement 200ppm...
- RS PRO 5L PP Narrow Neck Carboy Bottle
- PCL, Thread Size 1 → 26 mm Tyre Depth Gauge
- RS PRO Yellow Plastic Bin Bag 200 Thickness, 50 per Package
- RS PRO Straight IEC C13 Socket to Straight IEC C14 Plug Power Cord, 2m