Overview
The NCP81158MNTXG is a high-performance dual MOSFET gate driver designed by onsemi. It is optimized for driving the gates of both high-side and low-side power MOSFETs in a synchronous buck converter or half-bridge configuration. This integrated gate driver is packaged in a compact 3 mm x 3 mm DFN-8 package, making it ideal for high-density power management applications. The device features an integrated boost diode to minimize external components and includes a VCC under-voltage lockout (UVLO) function to ensure the outputs are low when the supply voltage is low.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer Part Number | NCP81158MNTXG | |
| Manufacturer | onsemi | |
| Driven Configuration | Half-Bridge | |
| Channel Type | Synchronous | |
| Number of Drivers | 2 | |
| Gate Type | N-Channel, P-Channel MOSFET | |
| Voltage - Supply | 4.5V ~ 5.5V | V |
| Logic Voltage - VIL, VIH | 0.6V, 3.3V | V |
| Rise / Fall Time (Typ) | 16ns, 11ns | ns |
| Operating Temperature | -40°C ~ 150°C (TJ) | °C |
| Package Type | DFN-8 |
Key Features
- High integration half-bridge gate driver supporting both N-Channel and P-Channel MOSFETs.
- Synchronous channel operation for efficient switching.
- Low logic voltage thresholds (0.6V, 3.3V) for easy integration.
- Fast rise and fall times (16ns, 11ns) for improved switching efficiency.
- Operates over a wide temperature range (-40°C to 150°C).
- Surface mount technology (SMT) for compact PCB design.
- Integrated boost diode to minimize external components.
- VCC under-voltage lockout (UVLO) function for reliable operation.
Applications
- Switch Mode Power Supplies (SMPS).
- DC-DC Converters.
- Motor Controllers.
- Power Inverters.
- Power supply units.
- Motor control systems.
- Power distribution systems.
- Renewable energy inverters.
Q & A
- What is the primary function of the NCP81158MNTXG?
The NCP81158MNTXG 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 or half-bridge configuration.
- What is the supply voltage range for the NCP81158MNTXG?
The supply voltage range is from 4.5V to 5.5V.
- What are the typical rise and fall times for the NCP81158MNTXG?
The typical rise and fall times are 16ns and 11ns, respectively.
- What is the operating temperature range for the NCP81158MNTXG?
The operating temperature range is from -40°C to 150°C (TJ).
- What type of package does the NCP81158MNTXG come in?
The device is packaged in a 3 mm x 3 mm DFN-8 package.
- Does the NCP81158MNTXG have an integrated boost diode?
- What safety feature does the NCP81158MNTXG have to ensure reliable operation?
The device features a VCC under-voltage lockout (UVLO) function to ensure the outputs are low when the supply voltage is low.
- In what types of applications is the NCP81158MNTXG commonly used?
The NCP81158MNTXG is commonly used in switch mode power supplies, DC-DC converters, motor controllers, power inverters, and other power management applications.
- Is the NCP81158MNTXG suitable for high-speed switching applications?
- What is the current status of the NCP81158MNTXG in terms of product lifecycle?
The NCP81158MNTXG is currently marked as an active product with no immediate discontinuation in sight.
