Overview
The NCP81075MNTXG, 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 synchronous buck converter topologies. This device is optimized for high-frequency switching applications, offering robust performance and reliability. The NCP81075MNTXG integrates an on-chip bootstrap diode, eliminating the need for an external discrete diode, and features a high floating top driver that can accommodate boost voltages up to 180 V.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| VDD Supply Voltage Range | 8.5 | 12 | 20 | V |
| VHS Voltage on HS (DC) | -10 | - | 180 - VDD | V |
| VHB Voltage on HB | VHS + 8, VDD - 1 | - | VHS + 20, 180 | V |
| Switching Frequency | - | - | 1 MHz | - |
| Propagation Delay Times | - | 20 ns | - | - |
| Output Currents | - | 4 A (Sink), 4 A (Source) | - | - |
| Rise/Fall Times with 1000 pF Load | 8 ns / 7 ns | - | - | - |
| Operating Junction Temperature Range | -40°C | - | 140°C | °C |
| Package Options | - | SOIC-8, DFN8, WDFN10 | - | - |
Key Features
- Drives two N-channel MOSFETs in high-side and low-side configuration.
- Floating top driver accommodates boost voltage up to 180 V.
- Independent Under-Voltage Lockout (UVLO) protection for high-side and low-side drivers.
- Switching frequency up to 1 MHz.
- Propagation delay times of 20 ns.
- Output currents of 4 A (sink and source).
- Rise and fall times of 8 ns and 7 ns respectively with a 1000 pF load.
- Specified from -40°C to 140°C.
- Pb-free, halogen-free/BFR-free, and RoHS compliant.
Applications
- Telecom and Datacom systems.
- Isolated and non-isolated power supply architectures.
- Class D audio amplifiers.
- Two-switch and active clamp forward converters.
Q & A
- What is the primary function of the NCP81075MNTXG?
The NCP81075MNTXG is a high-performance dual MOSFET gate driver designed to drive the gates of both high-side and low-side power MOSFETs in synchronous buck converter topologies.
- What is the maximum boost voltage the floating top driver can accommodate?
The floating top driver can accommodate boost voltages up to 180 V.
- What is the switching frequency capability of the NCP81075MNTXG?
The device can operate at switching frequencies up to 1 MHz.
- What are the propagation delay times for the NCP81075MNTXG?
The propagation delay times are typically 20 ns.
- What are the output current capabilities of the NCP81075MNTXG?
The device can source and sink up to 4 A of current.
- What are the rise and fall times with a 1000 pF load?
The rise time is 8 ns and the fall time is 7 ns with a 1000 pF load.
- What is the operating temperature range for the NCP81075MNTXG?
The device operates from -40°C to 140°C.
- What are the package options available for the NCP81075MNTXG?
The device is available in SOIC-8, DFN8, and WDFN10 packages.
- Is the NCP81075MNTXG compliant with RoHS and other environmental standards?
Yes, the device is Pb-free, halogen-free/BFR-free, and RoHS compliant.
- What kind of protection does the NCP81075MNTXG offer?
The device features independent Under-Voltage Lockout (UVLO) protection for both high-side and low-side drivers.
