MAX5995IEEE 802.3bt-Compliant, Powered Device Interface Controllers with Integrated 91W High-Power MOSFET | Development Boards, Kits, Programmers | 5 | Active | The MAX5995A/MAX5995B/MAX5995C provide a complete interface for a powered device (PD) to comply with the IEEE®802.3af/at/bt standard in a Power-Over-Ethernet (PoE) system. The devices provide the PD with a detection signature, classification signature, and an integrated isolation power switch with startup inrush current control. During the startup period, the devices limit the current to 135mA (typ) before switching to the higher current limit (1800mA to 2400mA, typ) when the isolation power MOSFET is fully enhanced. The devices feature Multi-Event classification, Intelligent MPS (MAX5995B/MAX5995C), Autoclass (MAX5995C), an input UVLO with wide hysteresis and long deglitch time to compensate for twistedpair cable resistive drop and to assure glitch-free transition during power-on/-off conditions. The devices can withstand a maximum voltage of 100V at the input.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.ApplicationsBuilding AutomationIEEE 802.3bt Powered DevicesLightingSmall Cell, Pico CellVOIP Phones, IP Security CamerasWireless Access Point |
MAX5996CIEEE 802.3bt-Compliant, Powered Device with Power Telemetry and Power/Current Limit | Integrated Circuits (ICs) | 2 | Active | The MAX5996A/MAX5996B/MAX5996C provides a complete interface for a powered device (PD) to comply with the IEEE®802.3af/at/bt standard in a Power-Over-Ethernet (PoE) system with a detection signature, classification signature, and an integrated power switch with startup inrush current control. During the startup period, the devices limit the current to 135mA and it switches to a higher current limit when the power MOSFET is fully enhanced. The devices feature a Multi-Event classification, Intelligent MPS, Autoclass, and an input UVLO with wide hysteresis and deglitch time to assure glitch-free transition during power-on/off. The devices can withstand a maximum voltage of 100V at the input.The devices can detect the presence of a wall adapter power and allow a smooth switch-over from the PoE power source to the wall adapter. The devices also provide a power-good (PG) signal, two-step current limit, and foldback control, overtemperature protection.The Intelligent Maintain Power Signature (IMPS) feature allows to automatically enable MPS current by detecting the port current. Autoclass feature is to enable advanced applications that allow the PSE to optimize power allocation to PD.When working with dc-dc controller IC, the MAX5996C features a constant power/current limit when the port power/current consumption reaches PSE power/current limit. Multi-Event indication feature provides patterned signals to indicate power level allocated from PSE to PD in 7 different scenarios, and accurate real-time power telemetry reporting. LLDP pin of the MAX5996C allows to read power/current limit configuration from system microcontroller and overwrite power/current limit from classification process.The MAX5996A/MAX5996B/MAX5996C are available in a 16-pin, 5mm x 5mm, TQFN power package. These devices are rated over the -40°C to 125°C temperature range.ApplicationsBuilding AutomationIEEE 802.3bt Powered DevicesLightingSmall Cell, Pico CellVOIP Phones, IP Security CamerasWireless Access Point |
| Evaluation Boards | 1 | Active | |
| Digital to Analog Converters (DACs) Evaluation Boards | 1 | Active | |
MAX6001Low-Cost, Low-Power, Low-Dropout, SOT23-3 Voltage References | Power Management (PMIC) | 2 | Active | The MAX6001-MAX6005 family of SOT23, low-cost series voltage references meets the cost advantage of shunt references and offers the power-saving advantage of series references, which traditionally cost more. Unlike conventional shunt-mode (two-terminal) references that must be biased at the load current and require an external resistor, these devices eliminate the need for an external resistor and offer a supply current that is virtually independent of the supply voltage.These micropower, low-dropout, low-cost devices are ideal for high-volume, cost-sensitive 3V and 5V battery- operated systems with wide variations in supply voltage that require very low power dissipation. Additionally, these devices are internally compensated and do not require an external compensation capacitor, saving valuable board area in space-critical applications.ApplicationsCell PhonesHard Disk DriveNotebook ComputersPagersPDAs, GPSs, DMMsPortable Battery-Powered Equipment |
| Integrated Circuits (ICs) | 3 | Active | |
MAX6003Low-Cost, Low-Power, Low-Dropout, SOT23-3 Voltage References | Power Management (PMIC) | 2 | Active | The MAX6001-MAX6005 family of SOT23, low-cost series voltage references meets the cost advantage of shunt references and offers the power-saving advantage of series references, which traditionally cost more. Unlike conventional shunt-mode (two-terminal) references that must be biased at the load current and require an external resistor, these devices eliminate the need for an external resistor and offer a supply current that is virtually independent of the supply voltage.These micropower, low-dropout, low-cost devices are ideal for high-volume, cost-sensitive 3V and 5V battery- operated systems with wide variations in supply voltage that require very low power dissipation. Additionally, these devices are internally compensated and do not require an external compensation capacitor, saving valuable board area in space-critical applications.ApplicationsCell PhonesHard Disk DriveNotebook ComputersPagersPDAs, GPSs, DMMsPortable Battery-Powered Equipment |
| Voltage Reference | 2 | Active | |
MAX6005Low-Cost, Low-Power, Low-Dropout, SOT23-3 Voltage References | Voltage Reference | 2 | Active | The MAX6001-MAX6005 family of SOT23, low-cost series voltage references meets the cost advantage of shunt references and offers the power-saving advantage of series references, which traditionally cost more. Unlike conventional shunt-mode (two-terminal) references that must be biased at the load current and require an external resistor, these devices eliminate the need for an external resistor and offer a supply current that is virtually independent of the supply voltage.These micropower, low-dropout, low-cost devices are ideal for high-volume, cost-sensitive 3V and 5V battery- operated systems with wide variations in supply voltage that require very low power dissipation. Additionally, these devices are internally compensated and do not require an external compensation capacitor, saving valuable board area in space-critical applications.ApplicationsCell PhonesHard Disk DriveNotebook ComputersPagersPDAs, GPSs, DMMsPortable Battery-Powered Equipment |
| Voltage Reference | 7 | Active | |
