Overview
The NCP1012ST130T3G 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 NCP1012ST130T3G is housed in a SOT-223 package and features advanced functionalities 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 |
|---|---|---|
| Package Type | SOT-223 | - |
| MOSFET Voltage Rating | 700 | V |
| On-state Resistance (RDSon) | 11 | Ω |
| Peak Current Setpoint (Ipeak) | 250 | mA |
| Operating Frequency | 130 | kHz |
| Internal Soft-Start Time | 1.0 | ms |
| Temperature Shutdown (TSD) | 150 | °C |
| Maximum Junction Temperature (TJmax) | 150 | °C |
| Standby Power (with auxiliary winding) | < 100 | mW |
Key Features
- Integrated 700 V MOSFET: With a typical RDSon of 11 Ω, providing high efficiency and reliability.
- Current-Mode Fixed Frequency Operation: Available frequencies include 65 kHz, 100 kHz, and 130 kHz.
- Dynamic Self-Supply (DSS): No need for an auxiliary winding, simplifying transformer design and ensuring better control in difficult output conditions.
- Frequency Jittering: For improved EMI signature.
- Internal Soft-Start and Skip-Cycle Operation: Reduces acoustic noise and ensures smooth startup.
- Short-Circuit Protection and Overvoltage Protection: Ensures robust operation and protection against faults.
- Low Standby Power: Below 100 mW if an auxiliary winding is used.
- Internal Temperature Shutdown and Hysteresis: Prevents overheating and ensures stable operation.
- Pb-Free and Halide-Free: Compliant with environmental regulations.
Applications
- Low Power AC/DC Adapters for Chargers: Ideal for battery chargers and other low-power applications.
- Auxiliary Power Supplies: Suitable for USB power supplies, appliances, TVs, and other consumer electronics.
Q & A
- What is the NCP1012ST130T3G used for?
The NCP1012ST130T3G is used for building low standby-power offline Switch-Mode Power Supplies (SMPS).
- What package type does the NCP1012ST130T3G come in?
The NCP1012ST130T3G is housed in a SOT-223 package.
- What is the voltage rating of the MOSFET in the NCP1012ST130T3G?
The MOSFET has a voltage rating of 700 V.
- What are the available operating frequencies for the NCP1012ST130T3G?
The available frequencies are 65 kHz, 100 kHz, and 130 kHz.
- Does the NCP1012ST130T3G require an auxiliary winding?
No, it features Dynamic Self-Supply (DSS), eliminating the need for an auxiliary winding.
- What is the typical on-state resistance (RDSon) of the NCP1012ST130T3G?
The typical RDSon is 11 Ω.
- What is the peak current setpoint for the NCP1012ST130T3G?
The peak current setpoint is 250 mA.
- What is the internal soft-start time of the NCP1012ST130T3G?
The internal soft-start time is 1.0 ms.
- What are the temperature shutdown and maximum junction temperature for the NCP1012ST130T3G?
The temperature shutdown (TSD) is 150°C, and the maximum junction temperature (TJmax) is also 150°C.
- Is the NCP1012ST130T3G compliant with environmental regulations?
Yes, it is Pb-Free and Halide-Free.
