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Product Detailed Parameters
- Description：IC POE CNTRL 1 CHANNEL 20HTSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Type：Controller (PD), DC/DC
- Number of Channels：1
- Power - Max：30 W
- Internal Switch(s)：Both
- Auxiliary Sense：No
- Standards：802.3at (PoE+), 802.3af (PoE)
- Voltage - Supply：0V ~ 57V
- Current - Supply：920µA
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：20-PowerTSSOP (0.173", 4.40mm Width)
- Supplier Device Package：20-HTSSOP
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Overview
The TPS23756PWP is a high-power, high-efficiency Power over Ethernet (PoE) interface and DC/DC controller designed for IEEE 802.3at Type 2 applications. It supports up to 25W of output power with a maximum input voltage of 57V and a minimum operating voltage of 9.3V. The device features a typical inrush current limit of 140mA and a minimum current limit of 850mA. It utilizes a 20-pin HTSSOP package and operates within a temperature range of -40°C to +125°C.
Feature Summary
- Supports IEEE 802.3at Type 2 PoE standards for high-power delivery
- Integrates primary-side adapter priority and second gate drive capabilities
- Includes thermal shutdown protection for enhanced reliability
- Features programmable and synchronizable switching frequency
Applications
- High-power IP cameras requiring robust power delivery
- Wireless access points needing 802.3at compliance
- Industrial IoT devices with strict thermal constraints
- Network switches powering downstream powered devices
Procurement Notes
Verify the specific suffix 'PWP' corresponds to the tube packaging format rather than tape and reel variants like 'PWPR'. Confirm that the 20-pin HTSSOP footprint matches your PCB layout requirements. Ensure the design accounts for the 125°C maximum junction temperature rating during thermal modeling. Cross-reference the datasheet revision date to confirm component availability and lifecycle status.
Selection Notes
Select this component when 25W PoE power levels are required alongside high efficiency. It is suitable for designs needing programmable switching frequencies to minimize EMI interference. Consider the integrated thermal shutdown feature for harsh environments. Compare against lower-power alternatives if only 12.95W is sufficient for the application load.
Part Context
The TPS23756PWP belongs to the Texas Instruments TPS2375x series of PoE controllers. This family includes variants such as the TPS23754 and TPS23757, which offer different power levels and pin configurations. The TPS23756 specifically targets Type 2 applications, distinguishing it from earlier Type 1 focused models in the broader portfolio.
Replacement Considerations
Public confirmed substitutes include the TPS23754 and TPS23757. Verify pin compatibility and power handling capabilities before substitution. The TPS23756PWR is the tape-and-reel equivalent of the PWP variant.
