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Product Detailed Parameters
- Description：IC POE CNTRL 1 CHANNEL 16SSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Type：Controller (PD), DC/DC
- Number of Channels：1
- Power - Max：12.95 W
- Internal Switch(s)：No
- Auxiliary Sense：No
- Standards：802.3af (PoE)
- Voltage - Supply：57V (Max)
- Current - Supply：3mA (Max)
- Operating Temperature：0°C ~ 70°C
- Mounting Type：Surface Mount
- Package / Case：16-SSOP (0.154", 3.90mm Width)
- Supplier Device Package：16-SSOP
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Overview
The LTC4267CGN-1#PBF is a Power over Ethernet (PoE) Powered Device controller integrated with an internal power switch, designed for IEEE 802.3af compliance. It operates within a supply voltage range of -57 V and features a maximum on-resistance of 2 Ohms. The device supports a current limit of 375 mA and includes an internal switch capable of handling up to 90% duty cycle. Packaged in an SSOP-16 format, it functions reliably across temperatures from 0°C to +70°C, consuming 2 mA of operating supply current.
Feature Summary
- Integrates PoE classification logic with an internal high-side power switch for compact design
- Supports IEEE 802.3af Powered Device standards with automatic detection capabilities
- Includes internal switching regulation to minimize external component count
Applications
- IEEE 802.3af compliant network endpoint devices
- IP cameras and wireless access points requiring integrated PoE reception
- Industrial control systems utilizing Power over Ethernet for power and data transmission
Procurement Notes
Verify the specific suffix #PBF indicates lead-free packaging compliance before procurement. Confirm the SSOP-16 package dimensions match your PCB footprint requirements. Ensure the operating temperature range meets your environmental specifications. Cross-reference the manufacturer's latest datasheet for any updates to electrical characteristics or pinout definitions prior to finalizing orders.
Selection Notes
Select this component when a single-chip solution for IEEE 802.3af PD implementation is required. The integration of the power switch reduces bill of materials complexity compared to discrete solutions. Consider the SSOP-16 package constraints for thermal management and board space. Verify that the 375 mA current limit aligns with the downstream load requirements of the application circuit.
Part Context
This part belongs to the Analog Devices LTC4267 series of PoE controllers. It is specifically engineered as a Powered Device (PD) interface, distinguishing it from Power Sourcing Equipment (PSE) controllers like the LTC4263. The series focuses on simplifying PoE integration by combining classification, negotiation, and power delivery functions into a single IC.
FAQ
Does the LTC4267CGN-1#PBF support IEEE 802.3at?
No, this component is certified for IEEE 802.3af Powered Device standards only.
What is the maximum operating voltage for this controller?
The device is rated for a working supply voltage of -57 V.
