Overview
The NCP4306AAAZZZAMNTWG is a high-performance driver designed by ON Semiconductor to control synchronous rectification MOSFETs in switch-mode power supplies. This component is tailored for various topologies, including DCM or CCM flyback, quasi-resonant flyback, forward, and half-bridge resonant LLC configurations. It features a Kelvin connection to the MOSFET, which enhances efficiency at full load, and a light load detection architecture for optimal efficiency at lighter loads.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage Min | 3.5V |
| Supply Voltage Max | 35V |
| IC Package Type | DFN-8 |
| No. of Pins | 8 Pins |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 125°C |
| MSL Temp (°C) | 260 |
| Container Type | REEL |
| IC Function | Secondary Side Synchronous Rectifier Driver |
| Sink/Source Drive Capability | 7 A Sink, 2 A Source |
| Turn-off Delay Time | Typically 15 ns |
Key Features
- High-efficiency operation at full and light loads due to Kelvin connection and light load detection architecture.
- Precise turn-off threshold, low turn-off delay time, and high sink current capability to maximize synchronous rectification MOSFET conduction time.
- Self-synchronization feature for reliable and noiseless operation of the SR system.
- Adjustable minimum on-time and minimum off-time to combat PCB layout-induced ringing.
- Zero current detection pin capability up to 200 V.
- Optional ultrafast (10.5ns) trigger input and disable input.
- Automatic light load disable mode.
- 3.5V UVLO and operation voltage range up to 35V.
- Compact and lightweight packaging (DFN-8).
Applications
- Efficient LED drivers.
- Compact DC/DC converters.
- Reliable switching regulators.
- High power density AC/DC power supplies.
- Notebook adapters.
- Server power supplies aux power stage.
- ATX & all-in-one power supplies.
- High density USB adapters).
Q & A
- What is the primary function of the NCP4306AAAZZZAMNTWG?
The primary function of the NCP4306AAAZZZAMNTWG is to control synchronous rectification MOSFETs in switch-mode power supplies.
- What is the operating voltage range of the NCP4306AAAZZZAMNTWG?
The operating voltage range is from 3.5V to 35V).
- What is the package type of the NCP4306AAAZZZAMNTWG?
The package type is DFN-8).
- What are the key features of the NCP4306AAAZZZAMNTWG?
Key features include high-efficiency operation, precise turn-off threshold, low turn-off delay time, and high sink current capability, among others).
- What are some common applications of the NCP4306AAAZZZAMNTWG?
Common applications include efficient LED drivers, compact DC/DC converters, reliable switching regulators, and high power density AC/DC power supplies).
- What is the significance of the Kelvin connection in the NCP4306AAAZZZAMNTWG?
The Kelvin connection to the MOSFET enables high-efficiency operation at full load).
- How does the light load detection architecture benefit the NCP4306AAAZZZAMNTWG?
The light load detection architecture allows for optimal efficiency even at lighter loads).
- What is the turn-off delay time of the NCP4306AAAZZZAMNTWG?
The turn-off delay time is typically 15 ns).
- Does the NCP4306AAAZZZAMNTWG support GaN MOSFETs?
Yes, the high accuracy driver and 5 V gate clamp enable the use of GaN MOSFETs).
- What is the operating temperature range of the NCP4306AAAZZZAMNTWG?
The operating temperature range is from -40°C to 125°C).
