Overview
The NCP81296MNTXG, produced by onsemi, is a 50 A, electronically resettable, in-line smart fuse designed for high-current applications. This device integrates an N-channel MOSFET with a smart hotswap controller, making it ideal for use in servers, storage systems, and base stations. It features a low 0.65 mΩ integrated MOSFET to minimize power loss and reduce solution size. The NCP81296MNTXG also includes a highly accurate current sensor for monitoring and overload protection, enhancing its reliability and performance in demanding environments.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage Range | VIN, VINF | 4.5 | 18 | V | |
| Maximum Continuous Output Current | IAVE | 50 | A | ||
| Peak Output Current | IPEAK | 60 | A | ||
| Operating Junction Temperature | TJ(OP) | -40 | 125 | °C | |
| Package Type | QFN32 (5x5 mm) | ||||
| On Resistance (RDSon) | 0.65 | 1.0 | mΩ | ||
| Short Circuit Protection Current Threshold | ISC | 80 | A | ||
| Thermal Shutdown Temperature | TTSD | 140 | °C |
Key Features
- Co-packaged Power Switch, Hotswap Controller, and Current Sense
- Programmable Soft-Start and Multi-level Current Limit Reporting
- Accurate Analog Load Current Monitor and Programmable Over Current Alert Output
- Analog Temperature Output and Status Fault OK Output
- Internal Switch Fault Diagnostics and Low-power Auxiliary Output Voltage
- Optional Enable-controlled Output Pulldown when Disabled
- Auto-Retry Mode for Following Protection Features (specific to NCP81296)
- Built-in Insertion Delay for Hotswap Applications
- Can be Paralleled for Higher Current Applications
Applications
The NCP81296MNTXG is designed for use in high-current applications such as:
- Servers
- Storage systems
- Base stations
- Other high-power electronic systems requiring reliable and efficient power management
Q & A
- What is the maximum continuous output current of the NCP81296MNTXG?
The maximum continuous output current is 50 A.
- What is the peak output current capability of the NCP81296MNTXG?
The peak output current is up to 60 A.
- What is the operating junction temperature range of the NCP81296MNTXG?
The operating junction temperature range is -40°C to 125°C.
- What type of package does the NCP81296MNTXG come in?
The device comes in a QFN32 (5x5 mm) package.
- Does the NCP81296MNTXG have built-in short circuit protection?
- What is the thermal shutdown temperature of the NCP81296MNTXG?
The thermal shutdown temperature is 140°C.
- Can the NCP81296MNTXG be paralleled for higher current applications?
- What is the on-resistance (RDSon) of the NCP81296MNTXG?
The on-resistance (RDSon) is 0.65 mΩ to 1.0 mΩ.
- Does the NCP81296MNTXG have an auto-retry feature?
- How does the NCP81296MNTXG monitor load current?
The device monitors load current through an accurate analog load current monitor (IMON) pin.
