ON Semiconductor NCP1239JD65R2G, PWM Current Mode Controller, 500 (Sink) mA, 500 (Source) mA, 65 kHz, 35 (Maximum) V,

Technical Reference
Legislation and Compliance
RoHS Certificate of 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

Specifications
Attribute Value
Number of PWM Outputs 1
Control Method Current
Topology Flyback
Rise Time 40ns
Fall Time 30ns
Maximum Duty Cycle 84%
Maximum Switching Frequency 65 kHz
Mounting Type Surface Mount
Package Type SOIC
Pin Count 7
Output Current 500 (Sink) mA, 500 (Source) mA
Output Voltage 16 V
Width 4mm
Typical Operating Supply Voltage 35 (Maximum) V
Height 1.5mm
Maximum Operating Temperature +150 °C
Length 5mm
Dimensions 5 x 4 x 1.5mm
2470 In stock for FREE next working day delivery
Price Each (In a Pack of 10)
£ 0.573
(exc. VAT)
£ 0.688
(inc. VAT)
Units
Per unit
Per Pack*
10 - 90
£0.573
£5.73
100 - 240
£0.401
£4.01
250 - 490
£0.365
£3.65
500 - 990
£0.334
£3.34
1000 +
£0.287
£2.87
*price indicative
Packaging Options:
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