Overview
The NCP1399BADR2G is a high-performance current mode controller designed for half-bridge resonant converters, manufactured by onsemi. This controller is optimized for high-frequency operation, ranging from 20 kHz to 750 kHz, and features integrated 600 V gate drivers, which simplify the layout and reduce the external component count. It is particularly suited for applications requiring high efficiency, robust protection features, and low standby power consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Topology | Half-Bridge |
| Control Mode | Current Mode |
| Switching Frequency (Typ) | Up to 400 kHz |
| Standby Mode | Yes |
| UVLO (Under Voltage Lock Out) | 8.9 V |
| Short Circuit Protection | Yes |
| Latch/Soft Start | Yes |
| VCC Max | 20 V |
| Drive Capacity | 1500 mA / 1000 mA |
| Package Type | SOIC-16 NB |
Key Features
- High-frequency operation from 20 kHz to 750 kHz
- Integrated 600 V gate drivers for simplified layout and reduced external component count
- Current mode control scheme for best transient response and inherent cycle-by-cycle over-current protection
- Built-in Brown-Out input function and automatic dead-time adjustment
- Dedicated skip mode technique for improved light load efficiency
- Comprehensive protection features including overload protection, over-current protection, overvoltage (OVP), and overtemperature (OTP) protections
- Ultra-low power consumption mode of operation (off-mode) with Active ON and Active OFF control techniques
- Dedicated output to drive the PFC controller for applications with a PFC front stage
Applications
- High power AC/DC adapters for notebooks
- Notebook adapters
- Offline battery chargers
- LCD-TV / LED-TV power supplies
- Industrial and medical power sources
- Computing power supplies
Q & A
- What is the typical switching frequency range of the NCP1399BADR2G?
The NCP1399BADR2G operates at a typical switching frequency range of up to 400 kHz. - What type of topology does the NCP1399BADR2G support?
The NCP1399BADR2G supports half-bridge topology. - What are the integrated gate driver capabilities of the NCP1399BADR2G?
The NCP1399BADR2G features integrated 600 V gate drivers. - What protection features are included in the NCP1399BADR2G?
The NCP1399BADR2G includes protection features such as overload protection, over-current protection, overvoltage (OVP), overtemperature (OTP), and short circuit protection. - How does the NCP1399BADR2G manage light load efficiency?
The NCP1399BADR2G uses a dedicated skip mode technique to improve light load efficiency. - What is the purpose of the PFC MODE pin in the NCP1399BADR2G?
The PFC MODE pin is used to control the external small signal HV MOSFET switch and the PFC front stage controller operation. - How does the NCP1399BADR2G handle off-mode operation?
The NCP1399BADR2G implements two off-mode control techniques: Active ON and Active OFF, which manage the off-mode operation differently based on the application requirements. - What is the maximum VCC voltage for the NCP1399BADR2G?
The maximum VCC voltage for the NCP1399BADR2G is 20 V. - What package type is the NCP1399BADR2G available in?
The NCP1399BADR2G is available in an SOIC-16 NB package. - What are some common applications of the NCP1399BADR2G?
Common applications include high power AC/DC adapters, notebook adapters, offline battery chargers, LCD-TV / LED-TV power supplies, industrial and medical power sources, and computing power supplies.
