Product Details
Key Features
Applications/Uses
Compliance | IEEE 802.3af IEEE 802.3at IEEE 802.3bt |
RDS(ON) (Ω) (PD MOSFET) | 0.1 |
PWM | No |
UVLO Threshold (V) | 35.4 |
Package/Pins | TQFN/16 |
Oper. Temp. (°C) | -40 to +85 |
Budgetary Price (See Notes) | 2.88 |
Simplified Block Diagram
Technical Docs
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Parameters
Compliance | IEEE 802.3af IEEE 802.3at IEEE 802.3bt |
RDS(ON) (Ω) (PD MOSFET) | 0.1 |
PWM | No |
UVLO Threshold (V) | 35.4 |
Package/Pins | TQFN/16 |
Oper. Temp. (°C) | -40 to +85 |
Budgetary Price (See Notes) | 2.88 |
Key Features
- IEEE 802.3af/at/bt Compliant
- Type 1~4 PSE Classification Indicator or an External Wall Adapter Indicator Output
- Simplified Wall Adapter Interface
- Multi-Event Classification 0–8
- Intelligent MPS (MAX5995B/MAX5995C, Patent US9152161)
- Sleep Mode and Ultra-Low-Power Sleep Mode (MAX5995A/MAX5995B)
- 100V Input Absolute Maximum Rating
- Inrush Current Limit During Startup
- Current Limit During Normal Operation
- Current Foldback Protection
- Undervoltage Lockout at 36V
- LED Driver with Programmable LED Current (MAX5995A/MAX5995B)
- Overtemperature Protection
- Multi-Event Power Level Indication
- Autoclass Feature (MAX5995C)
- Thermally Enhanced, 5mm x 5mm, 16-Pin TQFN
Applications/Uses
- Building Automation
- IEEE 802.3bt Powered Devices
- Lighting
- Small Cell, Pico Cell
- VOIP Phones, IP Security Cameras
- Wireless Access Point
Description
The devices support a Multi-Event classification method, as specified in the IEEE 802.3bt standard, and provide a signal to indicate from Type 1 to Type 4 Power Sourcing Equipment (PSE). The devices can detect the presence of a wall adapter power source connection and allow a smooth switch-over from the PoE power source to the wall power adapter.
The devices also provide a power-good (PG) signal, two-step current limit and foldback control, overtemperature protection. A sleep mode feature in the MAX5995A/MAX5995B minimizes low power consumption while generating the Maintain Power Signature (MPS) to maintain PSE connection. An Ultra-Low-Power sleep mode feature in the MAX5995A/MAX5995B further reduces power consumption while still generating MPS current. The MAX5995B/MAX5995C provides Intelligent Maintain Power Signature (IMPS) feature to automatically enable MPS current by detecting the port current.The devices feature a LED driver that is activated during sleep mode, Ultra-Low-Power sleep mode(MAX5995A/MAX5995B), and Intelligent MPS mode(MAX5995B/MAX5995C). Multi-Event indication feature provides patterned signals to indicate power level allocated from PSE to PD in 5 different scenarios. The MAX5995C provides Autoclass feature to enable advanced applications that allow the PSE to effectively optimize power allocation to PD.
The MAX5995A/MAX5995B/MAX5995C are available in a 16-pin, 5mm x 5mm, TQFN power package. These devices are rated over the -40°C to 125°C (MAX5995AATE/BATE/CATE) and -40°C to 85°C (MAX5995AETE/BETE/CETE) temperature ranges.
Simplified Block Diagram
Technical Docs
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .