Overview
The NCP1094MNRG is a member of ON Semiconductor’s Power over Ethernet (PoE) Powered Device (PoE-PD) product family. It integrates an IEEE 802.3af/at certified interface controller, supporting both type-I and type-II PoE operations. This device is designed to handle the necessary functions for PoE, including detection, classification, under voltage lockout, inrush, and operational current limits. The NCP1094MNRG is particularly useful in industrial and security applications, offering robust performance and compatibility with other high-voltage interfacing devices such as stepper motor drivers and CAN bus drivers.
Key Specifications
| Parameter | Units | Min | Typ | Max |
|---|---|---|---|---|
| Input Voltage Range | V | 0 | - | 57 |
| Operational Current Limit | mA | - | 680 | - |
| Inrush Current Limit | mA | - | 120 | - |
| Pass-switch Rds-on | Ω | - | 0.6 | 1 |
| Ambient Temperature Range | °C | -40 | - | 85 |
| Junction Temperature Range | °C | - | - | 125 |
| Package Type | - | - | DFN10 | - |
Key Features
- Fully supports IEEE 802.3af/at specifications, allowing for up to 30W of power.
- Programmable classification current and support for dual event classification-signature.
- Adjustable under voltage lockout (NCP1093 only) and auxiliary pin for applications supporting auxiliary supplies (NCP1094 only).
- Open-drain power good indicator and over-temperature protection.
- Industrial temperature range of -40°C to 85°C with full operation up to 125°C junction temperature.
- Vertical N-channel DMOS pass-switch for robustness and hot-swap capability.
- Pb-free, halogen-free/BFR-free, and RoHS compliant.
Applications
The NCP1094MNRG is suitable for various industrial and security applications, including but not limited to:
- Industrial automation systems
- Security systems such as IP cameras and access control devices
- Combination with stepper motor drivers, CAN bus drivers, and other high-voltage interfacing devices.
- Applications requiring power from non-PoE enabled networks, utilizing the auxiliary supply feature.
Q & A
- What is the NCP1094MNRG used for?
The NCP1094MNRG is used as a Power over Ethernet (PoE) Powered Device (PoE-PD) interface controller, supporting IEEE 802.3af/at specifications.
- What are the key functions of the NCP1094MNRG?
The key functions include detection, classification, under voltage lockout, inrush, and operational current limits.
- What is the operational current limit of the NCP1094MNRG?
The operational current limit is typically 680 mA.
- What is the inrush current limit of the NCP1094MNRG?
The inrush current limit is typically 120 mA.
- What is the temperature range for the NCP1094MNRG?
The ambient temperature range is -40°C to 85°C, with a junction temperature up to 125°C.
- Does the NCP1094MNRG support auxiliary supplies?
Yes, the NCP1094MNRG has an auxiliary pin that allows for power to be drawn from an external supply, making it suitable for applications connected to non-PoE enabled networks).
- Is the NCP1094MNRG RoHS compliant?
Yes, the NCP1094MNRG is Pb-free, halogen-free/BFR-free, and RoHS compliant).
- What package type does the NCP1094MNRG come in?
The NCP1094MNRG comes in a DFN10 package).
- How does the NCP1094MNRG handle thermal protection?
The device includes over-temperature protection with thermal shutdown, which disables the classification block, pass switch, and power good indicator when the junction temperature exceeds the threshold).
- Can the NCP1094MNRG be used in hot-swap applications?
Yes, the NCP1094MNRG features a vertical N-channel DMOS pass-switch that is capable of withstanding hot-swap and cable ESD events).
