Overview
The NCP1076P065G is a high-voltage switcher integrated circuit (IC) designed by onsemi for use in low-power offline Switch-Mode Power Supplies (SMPS). This IC is part of the NCP107x family, which integrates a fixed-frequency current-mode controller with a 700 V MOSFET. The NCP1076P065G is available in PDIP-7 and SOT-223 packages, offering a high level of integration and various protection features.
This component is notable for its quiet operation, automatically entering frequency foldback mode and skip mode to enhance efficiency at light loads and reduce standby consumption. It also includes features such as soft-start, frequency-jittering, short-circuit protection, and Dynamic Self-Supply, eliminating the need for an auxiliary winding.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Switching Frequency | 65 kHz | kHz |
| Peak Current | 650 mA | mA |
| RDS(on) | 4.7 Ω (at TJ = 25°C) | Ω |
| Maximum Output Power | 25 W (at 230 Vac), 15 W (at 85-265 Vac) | W |
| Package Type | PDIP-7, SOT-223 | - |
| Maximum Junction Temperature | 150 °C | °C |
| Storage Temperature Range | -60 to +150 °C | °C |
| ESD Capability (Human Body Model) | 2 kV | kV |
| VCC(on) | 7.8 V | V |
| VCC(off) | 6.1 V | V |
Key Features
- Built-in 700 V MOSFET with low RDS(on) of 4.7 Ω
- Current-mode fixed frequency operation at 65, 100, or 130 kHz
- Soft-start, frequency-jittering, and skip-cycle modes for efficient operation
- Short-circuit protection, overvoltage protection with auto-recovery, and AC input line voltage detection
- Dynamic Self-Supply (DSS) eliminating the need for an auxiliary winding
- Large creepage distance between high-voltage pins
- Fixed ramp compensation and leading edge blanking
- Low standby power consumption below 50 mW at high line
Applications
The NCP1076P065G is suitable for various low-power offline SMPS applications, including:
- Power adapters for consumer electronics
- Set-top boxes and other home appliances
- Industrial power supplies requiring high efficiency and reliability
- LED lighting power supplies
- Small to medium-sized power supplies where high integration and low standby power are crucial
Q & A
- What is the switching frequency of the NCP1076P065G?
The switching frequency of the NCP1076P065G is 65 kHz, but it can also operate at 100 kHz and 130 kHz depending on the configuration.
- What is the peak current rating of the NCP1076P065G?
The peak current rating of the NCP1076P065G is 650 mA.
- What is the RDS(on) of the MOSFET in the NCP1076P065G?
The RDS(on) of the MOSFET in the NCP1076P065G is 4.7 Ω at TJ = 25°C.
- What are the package options for the NCP1076P065G?
The NCP1076P065G is available in PDIP-7 and SOT-223 packages.
- What is the maximum junction temperature for the NCP1076P065G?
The maximum junction temperature for the NCP1076P065G is 150 °C.
- Does the NCP1076P065G have built-in protection features?
Yes, the NCP1076P065G includes protection features such as short-circuit protection, overvoltage protection with auto-recovery, and AC input line voltage detection.
- How does the NCP1076P065G manage standby power consumption?
The NCP1076P065G reduces standby power consumption below 50 mW at high line by stopping the DSS operation when an auxiliary winding is connected.
- What is the purpose of the Dynamic Self-Supply (DSS) in the NCP1076P065G?
The Dynamic Self-Supply (DSS) eliminates the need for an auxiliary winding, simplifying the design and reducing component count.
- Can the NCP1076P065G operate in skip mode?
Yes, the NCP1076P065G can enter skip mode to reduce standby consumption when the power demand is low.
- What is the ESD capability of the NCP1076P065G?
The ESD capability of the NCP1076P065G is 2 kV for the Human Body Model.
