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Product Detailed Parameters
- Description：IC POE CNTRL 1 CHANNEL 8TSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Type：Controller (PD)
- Number of Channels：1
- Power - Max：12.95 W
- Internal Switch(s)：Yes
- Auxiliary Sense：No
- Standards：802.3af (PoE)
- Voltage - Supply：0V ~ 57V
- Current - Supply：240µA
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：8-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：8-TSSOP
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Overview
The TPS2377PWR is a Powered Device controller compliant with IEEE 802.3af standards, designed for Power over Ethernet applications. It operates within a supply voltage range of 0 V to 57 V and features a maximum on-resistance of 1 Ohm. The device limits current to 405 mA and delivers an output power of 12.95 W. Quiescent current consumption is specified at 240 uA. It functions reliably across a temperature range from -40 C to +85 C. The component is housed in a TSSOP-8 surface-mount package.
Feature Summary
- Complies with IEEE 802.3af PoE Powered Device standards
- Integrates high-voltage power switch with low on-resistance
- Includes built-in current limiting and thermal protection mechanisms
Applications
- IEEE 802.3af Powered Device implementations
- Power over Ethernet network endpoint circuits
- LAN interface power management systems
Procurement Notes
Verify the specific suffix PWR corresponds to the TSSOP-8 reel packaging configuration before ordering. Confirm that the application environment remains within the specified -40 C to +85 C operating temperature range. Ensure input voltage does not exceed the 57 V absolute maximum rating. Check for RoHS compliance documentation if required by project specifications.
Selection Notes
Select this component when designing systems requiring strict adherence to IEEE 802.3af protocols. The TSSOP-8 package suits space-constrained layouts compared to larger alternatives. Consider the 240 uA quiescent current for low-power standby requirements. Evaluate the 1 Ohm on-resistance impact on overall system efficiency during continuous operation.
Part Context
This part belongs to the Texas Instruments TPS2377 series of PoE controllers. It serves as a core component for managing power delivery in networked devices. The series provides standardized solutions for integrating power and data onto single Ethernet cables. It supports reliable operation in various industrial and commercial networking environments.
Replacement Considerations
The TPS2377DR offers identical electrical performance in a SOIC-8 package. The TPS2375PWR-1 is another variant within the same functional family. Verify pin compatibility and thermal characteristics when substituting these packages.
