Overview
The NCP1011AP065G is a part of the NCP101X series from onsemi, designed as a self-supplied monolithic switcher for low standby-power offline Switch-Mode Power Supplies (SMPS). This component integrates a fixed-frequency current-mode controller and a 700 V MOSFET, making it a comprehensive solution for building rugged and low-cost power supplies. The NCP1011AP065G is housed in a PDIP-7 or SOT-223 package and features advanced functionalities such as soft-start, frequency jittering, short-circuit protection, and skip-cycle operation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | PDIP-7 or SOT-223 | |
| Drain Voltage | -0.3 to 700 | V |
| Peak Drain Current | 250 | mA |
| Oscillation Frequency | 65 kHz | kHz |
| Maximum Internal Current Setpoint | 225 - 275 | mA |
| Maximum Duty Cycle | 62 - 72 | % |
| Temperature Shutdown | 140 - 150 | °C |
| Storage Temperature Range | -60 to +150 | °C |
| Maximum Junction Temperature | 150 | °C |
Key Features
- Dynamic Self-Supply (DSS): The component can be supplied directly from the high-voltage DC rail, eliminating the need for an auxiliary winding and simplifying transformer design.
- Low Standby Power: Designed to minimize power consumption during standby mode.
- Short-Circuit Protection: Features a patented internal protection circuitry that monitors and responds to short-circuit conditions by reducing power dissipation and preventing damage.
- Soft-Start and Frequency Jittering: Reduces electromagnetic interference (EMI) and ensures smooth startup.
- Skip-Cycle Operation: Enhances efficiency by skipping switching cycles when the load is light.
- High-Voltage Power MOSFET: Integrated 700 V MOSFET for robust performance.
Applications
The NCP1011AP065G is suitable for a variety of applications requiring efficient and reliable power supply solutions, including:
- Offline Switch-Mode Power Supplies (SMPS)
- Low-Power Appliances
- Consumer Electronics
- Industrial Power Supplies
- LED Lighting Systems
Q & A
- What is the maximum drain voltage of the NCP1011AP065G?
The maximum drain voltage is 700 V.
- What are the available oscillation frequencies for the NCP101X series?
The available frequencies are 65 kHz, 100 kHz, and 130 kHz.
- How does the Dynamic Self-Supply (DSS) feature work?
The DSS feature allows the IC to be supplied directly from the high-voltage DC rail, eliminating the need for an auxiliary winding.
- What is the purpose of the soft-start feature in the NCP1011AP065G?
The soft-start feature ensures a smooth startup by gradually increasing the output voltage, reducing EMI and stress on the components.
- How does the short-circuit protection mechanism work in the NCP1011AP065G?
The protection mechanism involves monitoring the internal maximum peak current limit and stopping output pulses if a short-circuit is detected, reducing power dissipation and preventing damage.
- What is the maximum internal current setpoint for the NCP1011AP065G?
The maximum internal current setpoint is between 225 mA and 275 mA.
- What is the maximum duty cycle of the NCP1011AP065G?
The maximum duty cycle is between 62% and 72%.
- What is the temperature shutdown range for the NCP1011AP065G?
The temperature shutdown range is between 140°C and 150°C.
- What are the typical applications of the NCP1011AP065G?
Typical applications include offline SMPS, low-power appliances, consumer electronics, industrial power supplies, and LED lighting systems.
- What package types are available for the NCP1011AP065G?
The component is available in PDIP-7 and SOT-223 packages.
