Overview
The NCP4303BDR2G is a secondary-side controller designed by onsemi for power management, specifically aimed at controlling synchronous rectifier circuitry in switch-mode power supplies. This controller is versatile and can be used in various topologies such as flyback, forward, and half-bridge resonant LLC. It is engineered to enhance the efficiency and reliability of power supply systems by optimizing the operation of synchronous rectification MOSFETs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer Part Number | NCP4303BDR2G | |
| Manufacturer | onsemi | |
| Voltage Supply | 9.5V ~ 30V | V |
| Operating Temperature | -40°C ~ 125°C | °C |
| Mounting Type | Surface Mount | |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
Key Features
- Designed for secondary-side control in switch-mode power supplies.
- Operates in a wide supply voltage range of 9.5V to 30V.
- Functions under a wide range of operating temperatures, from -40°C to 125°C.
- Utilizes surface mount technology for streamlined PCB design and manufacturing.
- Comes in an 8-SOIC package for compactness and efficiency.
- Extremely low turn-off delay time and high sink current capability of the driver.
- Automatic package parasitic inductance compensation system to maximize synchronous rectification MOSFET conduction time.
- Externally adjustable minimum on and off times to fight ringing induced by PCB layout and other parasitic elements.
Applications
- Notebook adapters.
- High power density AC/DC power supplies.
- Gaming consoles.
- All switch-mode power supplies (SMPS) with high efficiency requirements.
- Variety of topologies including flyback, forward, and half-bridge resonant LLC.
Q & A
- What is the primary function of the NCP4303BDR2G?
The NCP4303BDR2G is a secondary-side controller designed to control synchronous rectifier circuitry in switch-mode power supplies.
- What is the operating voltage range of the NCP4303BDR2G?
The operating voltage range is from 9.5V to 30V.
- What is the operating temperature range of the NCP4303BDR2G?
The operating temperature range is from -40°C to 125°C.
- What type of package does the NCP4303BDR2G come in?
The NCP4303BDR2G comes in an 8-SOIC package.
- Is the NCP4303BDR2G lead-free and RoHS compliant?
Yes, the NCP4303BDR2G is lead-free and RoHS compliant.
- What are some key features of the NCP4303BDR2G?
Key features include low turn-off delay time, high sink current capability, and automatic package parasitic inductance compensation.
- In what types of applications is the NCP4303BDR2G typically used?
Typical applications include notebook adapters, high power density AC/DC power supplies, gaming consoles, and other SMPS with high efficiency requirements.
- How does the NCP4303BDR2G enhance power supply efficiency?
The NCP4303BDR2G enhances power supply efficiency by maximizing synchronous rectification MOSFET conduction time and reducing ringing induced by PCB layout and other parasitic elements.
- Can the NCP4303BDR2G be used in various power supply topologies?
Yes, it can be used in various topologies including flyback, forward, and half-bridge resonant LLC.
- What is the significance of the surface mount technology used in the NCP4303BDR2G?
The surface mount technology supports streamlined PCB design and manufacturing processes.
