Overview
The NCP81062MNTWG is a high-performance dual MOSFET gate driver designed by onsemi. It is optimized to drive the gates of both high-side and low-side power MOSFETs in a synchronous buck converter topology. This driver is particularly suited for applications in desktop systems, offering features such as adaptive anti-cross-conduction, power saving operation, and integrated bootstrap diode. The device ensures low switching losses and high efficiency, making it an ideal choice for modern power solutions.
Key Specifications
| Parameter | Description | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|
| VCC Operation Voltage | Power supply input voltage | 4.5 | 13.2 | V | |
| BST Bootstrap Supply Voltage | Bootstrap supply voltage relative to GND | 35 | V | ||
| DRVH Rise Time | Rise time of high-side driver output | 16 | 30 | ns | |
| DRVH Fall Time | Fall time of high-side driver output | 11 | 25 | ns | |
| DRVL Rise Time | Rise time of low-side driver output | 16 | 35 | ns | |
| DRVL Fall Time | Fall time of low-side driver output | 11 | 20 | ns | |
| Operating Junction Temperature | Operating junction temperature range | 0 | 150 | °C | |
| Operating Ambient Temperature | Operating ambient temperature range | -10 | 125 | °C |
Key Features
- Faster Rise and Fall Times: Ensures efficient switching and reduced power loss.
- Adaptive Anti-Cross-Conduction Circuit: Prevents simultaneous conduction of high-side and low-side MOSFETs, reducing switching losses.
- Integrated Bootstrap Diode: Simplifies the circuit design and improves reliability.
- Under-Voltage Lockout (UVLO): Ensures the outputs are low when the supply voltage is low, protecting the system from abnormal operation.
- Power Saving Operation: Reduces power consumption under light load conditions.
- Direct Interface to PWM Controllers: Compatible with ON Semiconductor’s NCP6131 multi-phase controller and other compatible PWM controllers.
- Thermally Enhanced Package: DFN8 package provides good heat dissipation.
- Bidirectional EN Pin: Provides fault signals to the controller and can be used to shut down the system in fault conditions.
Applications
The NCP81062MNTWG is designed for power solutions in desktop systems, particularly in synchronous buck converter topologies. It is optimized to work with N-channel MOSFETs and is compatible with ON Semiconductor’s NCP6131 multi-phase controller. This driver is suitable for applications requiring high efficiency, low switching losses, and robust fault detection mechanisms.
Q & A
- What is the primary function of the NCP81062MNTWG?
The NCP81062MNTWG is a dual MOSFET gate driver designed to drive the gates of both high-side and low-side power MOSFETs in a synchronous buck converter. - What are the key features of the NCP81062MNTWG?
Key features include faster rise and fall times, adaptive anti-cross-conduction circuit, integrated bootstrap diode, under-voltage lockout, power saving operation, and direct interface to PWM controllers. - What is the operating voltage range for the VCC pin?
The VCC pin operates within a voltage range of 4.5 V to 13.2 V. - What is the maximum bootstrap supply voltage?
The maximum bootstrap supply voltage (BST) is 35 V relative to GND. - What is the purpose of the under-voltage lockout (UVLO) feature?
The UVLO feature ensures that the outputs are low when the supply voltage is low, protecting the system from abnormal operation. - How does the adaptive anti-cross-conduction circuit work?
The adaptive anti-cross-conduction circuit prevents simultaneous conduction of high-side and low-side MOSFETs, reducing switching losses and preventing shoot-through damage. - What is the significance of the bidirectional EN pin?
The bidirectional EN pin can provide fault signals to the controller and can be used to shut down the system in fault conditions such as power-on reset and under-voltage lockout. - What is the recommended operating junction temperature range?
The operating junction temperature range is from 0°C to 150°C. - What type of package does the NCP81062MNTWG come in?
The NCP81062MNTWG comes in a thermally enhanced DFN8 package. - How does the power saving operation feature work?
The power saving operation feature reduces power consumption under light load conditions, enhancing overall system efficiency.
