Overview
The NCP1014ST65T3G, produced by onsemi, is a part of the NCP101X series, which integrates a fixed-frequency current-mode controller and a 700 V MOSFET. This monolithic switcher is designed for low standby power offline Switch-Mode Power Supplies (SMPS). It is housed in a SOT-223 package, making it suitable for compact and efficient power supply designs. The NCP1014ST65T3G features Dynamic Self-Supply (DSS) technology, eliminating the need for an auxiliary winding, and includes various protection mechanisms such as short-circuit protection, frequency jittering, and skip-cycle operation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | SOT-223 | - |
| Drain Voltage | -0.3 to 700 | V |
| Peak Drain Current | 450 | mA |
| Switching Frequency | 65 kHz | - |
| Maximum Junction Temperature | 150 | °C |
| Internal IC Consumption at 65 kHz | 0.92 - 1.1 | mA |
| Power Switch On-state Resistance (Id = 50 mA, TJ = 25°C) | 11 | Ω |
| Maximum Duty Cycle | 62 - 72 | % |
| Temperature Shutdown | 140 - 160 | °C |
Key Features
- Dynamic Self-Supply (DSS): No need for an auxiliary winding, simplifying transformer design and ensuring better control in difficult output conditions.
- Low Standby Power: Designed for low standby power offline SMPS applications.
- Short-Circuit Protection: Internal protection circuitry monitors and responds to short-circuit conditions.
- Frequency Jittering: Reduces EMI by introducing frequency jittering during nominal load operation.
- Skip-Cycle Operation: Default skip mode level on the FB pin to manage low-load conditions efficiently.
- Soft-Start and Internal Pull-up Resistor: Ensures smooth startup and feedback stability.
- High-Voltage MOSFET: 700 V MOSFET integrated into the monolithic structure.
Applications
The NCP1014ST65T3G is suitable for a variety of offline SMPS applications, including:
- Low-power consumer electronics.
- Home appliances.
- Industrial power supplies.
- LED lighting systems.
- Small to medium-sized power adapters.
Q & A
- What is the maximum drain voltage of the NCP1014ST65T3G?
The maximum drain voltage is 700 V.
- What is the switching frequency of the NCP1014ST65T3G?
The switching frequency is 65 kHz.
- Does the NCP1014ST65T3G require an auxiliary winding?
No, it features Dynamic Self-Supply (DSS) technology, eliminating the need for an auxiliary winding.
- What is the maximum peak drain current of the NCP1014ST65T3G?
The maximum peak drain current is 450 mA.
- What protection mechanisms are integrated into the NCP1014ST65T3G?
It includes short-circuit protection, frequency jittering, and skip-cycle operation.
- What is the maximum junction temperature of the NCP1014ST65T3G?
The maximum junction temperature is 150°C.
- What is the typical internal IC consumption at 65 kHz?
The typical internal IC consumption at 65 kHz is 0.92 - 1.1 mA.
- What is the power switch on-state resistance at 25°C?
The power switch on-state resistance at 25°C is 11 Ω.
- What is the maximum duty cycle of the NCP1014ST65T3G?
The maximum duty cycle is 62 - 72%.
- What is the temperature shutdown range of the NCP1014ST65T3G?
The temperature shutdown range is 140 - 160°C.
