TPS2377DRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The TPS2377DRG4 is an IEEE 802.3af-compliant Power over Ethernet (PoE) powered device controller IC in an 8-pin SOP package. It manages power extraction from Ethernet cables for PoE-powered equipment with single-channel control. Available from Texas Instruments with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- TPS2377DRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- IEEE 802.3af PoE powered device controller with single-channel control manages classification, inrush limiting, and power-good signaling for compliant PoE endpoint devices
- Fixed (non-adjustable) threshold detection simplifies design by eliminating external resistor networks while ensuring robust compliance with 802.3af powered device detection requirements
- Compact 8-pin SOP plastic package (R-PDSO-G8, SOP8) enables easy PCB integration into space-constrained PoE-powered devices such as IP cameras, VoIP phones, and wireless access points
Applications
The TPS2377DRG4 is used as the power interface controller in IEEE 802.3af PoE-powered devices (PDs) including IP cameras, VoIP telephones, wireless LAN access points, and network switches. It handles all PoE protocol functions including powered device detection, classification presentation, and inrush current limiting, allowing system designers to focus on the application circuit rather than PoE compliance details. The 8-pin SOP package makes it straightforward to integrate into compact Ethernet-powered product designs.
Specifications
| YTEOL | 0 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | PoE POWERED DEVICE CONTROLLER |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.45mA |
| Supply Voltage-Max (Vsup) | 57V |
| Supply Voltage-Nom (Vsup) | 48V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Taiwan |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TPS2377DRG4:
Frequently Asked Questions
What PoE standard does the TPS2377DRG4 comply with?
The TPS2377DRG4 is compliant with the IEEE 802.3af Power over Ethernet standard. This standard defines how power is delivered over standard Ethernet cables alongside data, with PSE (Power Sourcing Equipment) providing up to 15.4 W per port. The TPS2377DRG4 implements the powered device (PD) side, managing detection, classification, and power extraction from the Ethernet cable.
What functions does the TPS2377DRG4 perform in a PoE system?
The TPS2377DRG4 performs the key powered device controller functions required by IEEE 802.3af: it presents the detection signature resistor to allow the PSE to identify it as a valid PoE device, presents a classification current to indicate power class, manages inrush current limiting during power-up, and provides a power-good signal to the application circuit once stable power is available from the Ethernet cable.
Does the TPS2377DRG4 have an adjustable threshold?
No, the TPS2377DRG4 has a fixed (non-adjustable) threshold. This means the detection and operating thresholds are internally set, eliminating the need for external programming resistors. While this reduces design flexibility for custom threshold requirements, it simplifies BOM, reduces PCB area, and ensures consistent 802.3af-compliant operation without external component tolerances affecting performance.
What package does the TPS2377DRG4 use?
The TPS2377DRG4 comes in an 8-pin small outline package (SOP8, JESD-30 code R-PDSO-G8, package equivalence SOP8,.25) with a plastic/epoxy body. This widely-used surface-mount package offers good thermal performance, easy PCB assembly, and compatibility with standard pick-and-place equipment, making it practical for high-volume manufacturing of PoE-powered network devices.
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