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onsemi 7-Pin SOIC 5-Channel PWM Controller 65kHz Switching Frequency 35V Supply NCP1239KD65R2G
Specifications
| Country of Origin | Philippines |
|---|---|
| Brand | onsemi |
| Height | 1.5mm |
| Length | 5mm |
| Model | NCP1239KD65R2G |
| Width | 4mm |
| Mount Type | Surface |
| Maximum Duty Cycle | 84% |
| Series | NCP |
| Output Current | 500mA |
| Topology | Flyback |
| Maximum Operating Temperature | 150°C |
| Package Type | SOIC |
| Number of outputs | 5 |
| Output Voltage | 16V |
| Maximum Switching Frequency | 65kHz |
| Pin Count | 7 |
| Maximum Supply Voltage | 35V |
| PWM Controller Type | Current Mode |
Key Features
- Fixed-frequency current-mode control at 65kHz ensures precise PWM regulation.
- Supports 5 outputs with a maximum output current of 500mA.
- Features high-voltage start-up current source for lossless power-on sequence.
- Compact SOIC package with 7 pins and dimensions of 5mm length, 4mm width, and 1.5mm height.
- Includes adjustable over-power protection and frequency jittering to improve light load performance.
- Designed to operate up to 150°C maximum temperature for industrial reliability.
- Flyback topology compatible and surface mount suitable for efficient PCB design.
- Includes brown-out detection and internal soft-start for system stability.
Product Description
onsemi NCP1239KD65R2G is a high-performance 5-channel PWM controller in a compact 7-pin SOIC package, designed for power management applications requiring fixed-frequency current-mode control at 65kHz switching frequency and a maximum supply voltage of 35V.
This controller incorporates a high-voltage start-up current source enabling a quick and lossless power-on sequence, simplifying auxiliary supply design and enhancing reliability during start-up, transient, and standby conditions.
The device supports up to 5 outputs capable of delivering up to 500mA each, with a maximum duty cycle of 84%, allowing efficient power delivery in flyback topology circuits. Its built-in features include adjustable over power protection, frequency foldback down to 26kHz, frequency jittering to reduce electromagnetic interference, and a 64-ms timer-based short-circuit protection scheme with auto-recovery or latched operation options.
With a robust maximum operating temperature of 150°C and surface mount SOIC packaging (5mm length x 4mm width x 1.5mm height), it is ideal for high-reliability industrial electronics, power adapters, and other embedded power systems.
Additional features include internal slope compensation, brown-out detection to prevent undervoltage conditions, and fixed soft-start circuitry for smooth power ramp-up. The NCP1239 series is widely used in industrial, consumer electronics, laboratory equipment, and automation systems requiring precise PWM control and power efficiency.
Fixed-frequency 65kHz current-mode PWM control for precision power management. High-voltage start-up current source for simplified powering circuitry. Adjustable over power protection with frequency jittering to mitigate EMI.
Built-in brown-out detection and internal soft-start for system stability. Compact 7-pin SOIC package suitable for surface mount assembly. Operational over a wide temperature range up to 150°C. Designed for flyback topology applications with 5 output channels.
Manufactured with high quality standards in Philippines. Explore more advanced semiconductor solutions and power management ICs in the PWM Controller category on EnvMart.
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Frequently Asked Questions
The NCP1239KD65R2G supports a maximum output current of 500mA per channel, with a total of 5 output channels available.
This PWM controller operates at a fixed switching frequency of 65kHz, ensuring precise PWM regulation.
The maximum supply voltage for the NCP1239KD65R2G is 35V, suitable for various power management applications.
The SOIC package of this model has dimensions of 5mm in length, 4mm in width, and 1.5mm in height.
It is designed to operate at a maximum temperature of 150°C, making it suitable for industrial applications.
Yes, it includes adjustable over-power protection to enhance system reliability during operation.
The NCP1239KD65R2G is compatible with flyback topology, which is commonly used in power management circuits.
The maximum duty cycle for this model is 84%, allowing efficient power delivery in its applications.
This model features frequency jittering, which helps to reduce electromagnetic interference during operation.
It is designed for surface mount assembly, facilitating efficient PCB design.
It includes brown-out detection and internal soft-start circuitry, which contribute to system stability during power-up.
The output voltage for this model is 16V, which is suitable for various applications requiring precise control.
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