onsemi NCP1083DER2G
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) Exposed Pad |
| Mfr | onsemi |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C |
| Current - Supply | - |
| Type | Controller (PD) |
| Number of Channels | 1 |
| Power - Max | 40 W |
| Supplier Device Package | 20-TSSOP-EP |
| Voltage - Supply | 0V ~ 57V |
| Standards | 802.3at (PoE+), 802.3af (PoE) |
| Internal Switch(s) | Both |
| Auxiliary Sense | Yes |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | NCP1083 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,500 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
NCP1083DER2G PoE PD controlle 1 Channel 802.3at (PoE+), 802.3af (PoE)
The NCP1083DER2G is a highly integrated Power over Ethernet (PoE) Powered Device (PD) interface controller from ON Semiconductor, designed to provide IEEE 802.3af/at compliant power management for network-connected devices. This advanced IC enables safe and efficient power extraction from Ethernet cables, supporting Class 0 to Class 4 power classification with a wide input voltage range of 12V to 57V. It incorporates a low-resistance hot-swap MOSFET and precision detection signature to ensure seamless compatibility with PoE switches and midspan injectors while minimizing power dissipation.
Featuring an integrated DC-DC converter controller, the NCP1083DER2G optimizes power delivery to connected devices with high efficiency, reducing thermal stress in space-constrained applications. The device includes comprehensive protection mechanisms such as overcurrent (OCP), overvoltage (OVP), and thermal shutdown, ensuring reliable operation in demanding environments. Its programmable inrush current control prevents voltage droop during startup, while the automatic MPS (Maintain Power Signature) generation maintains power continuity in low-power states. The compact 8-pin SOIC package makes it suitable for IP phones, wireless access points, security cameras, and IoT edge devices requiring PoE power.
The NCP1083DER2G simplifies PoE implementation by reducing external component count and supporting both isolated and non-isolated converter topologies. Its low standby power consumption enhances energy efficiency in always-on applications. Additionally, the chip supports dual-signature detection for advanced power management in multi-port systems. With industrial-grade temperature range (-40°C to +85°C), it is ideal for enterprise, industrial automation, and smart city infrastructure.
Alternative Models & Key Features:
● NCP1095GEVB: IEEE 802.3bt compliant, supports up to 90W PoE++, 4-pair power delivery.
● TPS23861PAP: Texas Instruments alternative with 8-port PoE manager, advanced power budgeting.
● LTC4267CGN#PBF: Analog Devices solution with 4-pair detection, integrated switching regulator.
● Si3402-B-GM: Silicon Labs' low-power PoE PD controller with integrated DC-DC converter.
