Overview
The NCP5901MNTBG, produced by onsemi, is a high-performance dual MOSFET gate driver designed to drive the gates of both high-side and low-side power MOSFETs in a synchronous buck converter. This device is optimized for applications in notebook and desktop systems, offering high efficiency and low switching losses. It features adaptive anti-cross-conduction and power-saving operation, making it an ideal choice for modern power solutions.
Key Specifications
| Parameter | Min. | Typ. | Max. | Units |
|---|---|---|---|---|
| VCC Operation Voltage | 4.5 | 13.2 | V | |
| Power ON Reset Threshold | 2.75 | 3.2 | V | |
| VCC Start Threshold | 3.8 | 4.35 | 4.5 | V |
| VCC UVLO Hysteresis | 150 | 200 | 250 | mV |
| DRVH Rise Time (VCC = 12 V, 3 nF load) | 16 | 30 | ns | |
| DRVH Fall Time (VCC = 12 V, 3 nF load) | 11 | 25 | ns | |
| DRVH Turn-Off Propagation Delay (CLOAD = 3 nF) | 8.0 | 30 | ns | |
| Operating Junction Temperature Range | 0 | 150 | °C | |
| Operating Ambient Temperature Range | -10 | 125 | °C |
Key Features
- Faster Rise and Fall Times
- Adaptive Anti-Cross-Conduction Circuit
- Pre-OV Function
- ZCD Detect
- Floating Top Driver Accommodates Boost Voltages of up to 35 V
- Output Disable Control Turns Off Both MOSFETs
- Under-Voltage Lockout
- Power Saving Operation Under Light Load Conditions
- Direct Interface to NCP6151 and Other Compatible PWM Controllers
- Thermally Enhanced Package
- Pb-Free Devices
Applications
The NCP5901MNTBG is designed for power solutions in desktop systems. It is optimized to work with ON Semiconductor’s NCP6131 multi-phase controller and is suitable for driving N-channel MOSFETs in synchronous buck converter topologies.
Q & A
- What is the primary function of the NCP5901MNTBG?
The NCP5901MNTBG is a high-performance 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 NCP5901MNTBG?
Key features include faster rise and fall times, adaptive anti-cross-conduction circuit, pre-OV function, ZCD detect, and power-saving operation under light load conditions.
- What is the operating voltage range for VCC?
The VCC operation voltage ranges from 4.5 V to 13.2 V.
- What is the purpose of the under-voltage lockout (UVLO) function?
The UVLO function ensures that the outputs are held low until the supply voltage (VCC) reaches a specified threshold, preventing abnormal operation during startup.
- How does the adaptive anti-cross-conduction circuit work?
The adaptive anti-cross-conduction circuit helps in reducing switching losses and improving efficiency by preventing both the high-side and low-side MOSFETs from being on simultaneously.
- What is the maximum operating junction temperature for the NCP5901MNTBG?
The operating junction temperature range is from 0°C to 150°C.
- What are the typical applications for the NCP5901MNTBG?
The device is typically used in power solutions for desktop systems and is optimized to work with ON Semiconductor’s NCP6131 multi-phase controller.
- How does the power-on reset feature work?
The power-on reset feature protects the gate driver from abnormal status during startup by monitoring the switching node and forcing the bottom gate high to discharge the output capacitor if necessary.
- What is the significance of the floating top driver in the NCP5901MNTBG?
The floating top driver accommodates boost voltages of up to 35 V, which is essential for high-side MOSFET gate driving in synchronous buck converters.
- Is the NCP5901MNTBG a Pb-Free device?
