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Product Detailed Parameters
- Description：IC POE CNTRL 8 CHANNEL 56QFN
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Controller (PSE)
- Number of Channels：8
- Power - Max：670 mW
- Internal Switch(s)：No
- Auxiliary Sense：No
- Standards：802.3at (PoE)
- Voltage - Supply：3V ~ 3.6V
- Current - Supply：-
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：56-VFQFN Exposed Pad
- Supplier Device Package：56-QFN (8x8)
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Overview
The TPS2388RTQR is an eight-port Power Sourcing Equipment (PSE) controller compliant with IEEE 802.3at standards. It operates from a 48 V input and features a 3.3 V supply voltage with a quiescent current of 10 mA. The device supports a maximum operating temperature of +125°C and a minimum of -40°C. Packaged in a QFN-56 format, it integrates power switches for high-density Ethernet switch applications requiring reliable PoE delivery.
Feature Summary
- Integrates eight independent power channels for simultaneous PoE+ port management
- Supports full IEEE 802.3at classification and detection protocols
- Includes built-in protection mechanisms against short circuits and overloads
Applications
- High-density enterprise Ethernet switches
- Access point controllers in wireless networks
- IP camera distribution systems
Procurement Notes
Verify the specific suffix RTQR to confirm tape-and-reel packaging configuration. Ensure compatibility with the intended PCB footprint for the QFN-56 package. Cross-reference the latest datasheet revision for any updates to electrical characteristics or thermal recommendations before finalizing the design.
Selection Notes
Select this component when designing systems requiring eight PoE+ ports within a compact form factor. Compare against the TPS23881RTQR if higher power budgets per port are needed. Consider the TPS23861 series for designs requiring fewer than four ports to optimize board space and cost efficiency.
Part Context
This part belongs to the Texas Instruments TPS2388 family of PSE controllers. It is designed to simplify the implementation of multi-port PoE infrastructure. The device complements other solutions like the TPS23754 by providing integrated switching capabilities for standard PoE applications.
Replacement Considerations
The TPS2388RTQT serves as a tube-pack alternative to the same functional device. For single-pair PoE requirements, consider the TPS23881 series. Direct pin-to-pin replacements may require verification of thermal performance differences between packaging types.
