The ADIN1100 is a low power, single port, 10BASE-T1L transceiver designed for industrial Ethernet applications and is compliant with the IEEE? 802.3cg-2019? Ethernet standard for long reach 10 Mbps single pair Ethernet (SPE). The ADIN1100 integrates an Ethernet PHY core with all the associated analog circuitry, input and output clock buffering, the management interface control register and subsystem registers, as well as the MAC interface and control logic to manage the reset, clock control, and pin configuration.The ADIN1100 supports cable reach of up to 1700 meters with autonegotiation enabled and has ultra low power consumption of 39 mW.The PHY core supports the 1.0 V p-p operating mode and the 2.4 V p-p operating mode defined in the IEEE 802.3cg standard and can operate from a single power supply rail of 1.8 V or 3.3 V, with the lower voltage option supporting the 1.0 V p-p transmit voltage level.The ADIN1100 has an integrated voltage supply monitoring circuit and power-on reset (POR) circuitry to improve system level robustness.The MDIO interface is a 2-wire serial interface for communication between a host processor or MAC and the ADIN1100, thereby allowing access to control and status information in the PHY core management registers. This interface is compatible with both the IEEE 802.3 Standard Clause 22 and Clause 45 management frame structures.APPLICATIONS Process Control Factory Automation Building Automation Field instruments and switches

The ADIN1110 is an ultra low power, single port, 10BASE-T1L transceiver design for industrial Ethernet applications and is com-pliant with the IEEE? 802.3cg-2019? Ethernet standard for long reach, 10 Mbps single pair Ethernet (SPE). Featuring an integrated media access control (MAC) interface, the ADIN1110 enables direct connectivity with a variety of host controllers via a serial peripheral interface (SPI). This SPI enables the use of lower power processors without an integrated MAC, which provides for the lowest overall system level power consumption. The ADIN1110 is designed for edge node sensors and field instruments deployed in building, factor, and process automation.The device operates from a single power supply rail of 1.8 V or 3.3 V. Supporting both 1.0 V and 2.4 V amplitude modes of operations and external termination resistors, the ADIN1110 supports use within intrinsically safe environments. The programmable transmit levels, external termination resistors, and independent receive and transmit pins make the ADIN1110 suited to intrinsic safety applications.The ADIN1110 has an integrated voltage supply monitoring and power-on reset (POR) circuitry to improve system level robustness, and has a 4-wire SPI for communication between the MAC inter-face and host processor.The ADIN1110 is available in a 40-lead, 6 mm ? 6 mm lead frame chip scale package (LFCSP).APPLICATIONSField instruments Flow meters Pressure and temperature transducers Building automation Actuators Fire panels Elevators Edge node sensors Factory automation

The ADIN2111 is a low power, low complexity, two-Ethernet ports switch with integrated 10BASE-T1L PHYs and one serial peripheral interface (SPI) port. The device is designed for industrial Ethernet applications using low power constrained nodes and is compliant with the IEEE? 802.3cg-2019? Ethernet standard for long reach 10 Mbps single pair Ethernet (SPE). The switch (cut through or store and forward) supports various routing configurations between the two Ethernet ports and the SPI host port providing a flexible solution for line, daisy-chain, or ring network topologies.The ADIN2111 supports cable reach of up to 1700 meters with ultra low power consumption of 77 mW. The two PHY cores support the 1.0 V p-p operating mode and the 2.4 V p-p operating mode defined in the IEEE 802.3cg standard, and can operate from a single power supply rail of 1.8 V or 3.3 V. The ADIN2111 can be used in unmanaged configurations where the device automatically forwards the traffic between the two Ethernet ports.The device integrates the switch, two Ethernet physical layer (PHY) cores with a media access control (MAC) interface and all the associated analog circuitry, and input and output clock buffering. The device also includes internal buffer queues, the SPI and subsystem registers, as well as the control logic to manage the reset and clock control and hardware pin configuration.The ADIN2111 has an integrated voltage supply monitoring circuit and power-on reset (POR) circuitry to improve system level robust-ness. The 4-wire SPI for communication with the host can be configured to OPEN Alliance SPI or generic SPI. Both modes support optional data protection or cyclic redundancy check (CRC).APPLICATIONSBuilding automation and fire safetyFactory AutomationEdge sensors and actuatorsCondition monitoring and machine connectivity

The ADM1075 is a full feature, negative voltage, hot swap controllerwith constant power foldback and high accuracy digital currentand voltage measurement that allows boards to be safely insertedand removed from a live -48 V backplane. The part providesprecise and robust current limiting and protection against bothtransient and nontransient short circuits and overvoltage andundervoltage conditions. The ADM1075 typically operates froma negative voltage of -35 V to -80 V and, due to shunt regulation,has excellent voltage transient immunity. The operating range ofthe part is flexible due to the shunt regulator, and the part can bepowered directly by a 10 V rail to save shunt power dissipation(see the Powering the ADM1075 section for more details).A full-scale current limit of 25 mV or 50 mV can be selected bychoosing the appropriate model. The maximum current limit isset by the combination of the sense resistor, RSENSE, and the inputvoltage on the ISET pin, using external resistors. This allows finetuning of the trip voltage so that standard sense resistors can beused. Inrush current is limited to this programmable value bycontrolling the gate drive of an external N-channel FET. A builtinsoft start function allows control of the inrush current profile byan external capacitor on the soft start (SS) pin.Refer to the datasheet for more information.PRODUCT HIGHLIGHTS Constant Power Foldback. Maximum FET power set by a PLIM resistor divider. This eases complexity when designing to maintain FET SOA. Adjustable Current Limit. The current limit is adjustable via the ISET pin allowing for the use of a standard value sense resistor. 12-Bit ADC. Accurate voltage, current, and power measurements. Also enables calculation of energy consumption over time. PMBus Interface. PMBus fast mode compliant interface used to read back status and data registers and set warning and fault limits. Fault Recording. Latched status registers provide useful debugging information to help trace faults in high reliability systems. Built-In Soft Start. Soft start capacitor controls inrush current profile with di/dt control.APPLICATIONS Telecommunication and data communication equipment Central office switching -48 V distributed power systems Negative power supply control High availability servers

The ADM1166 Super Sequencer? is a configurable supervisory/ sequencing device that offers a single-chip solution for supply monitoring and sequencing in multiple-supply systems. In addition to these functions, the ADM1166 integrates a 12-bit ADC and six 8-bit voltage output DACs. These circuits can be used to implement a closed-loop margining system that enables supply adjustment by altering either the feedback node or reference of a dc-to-dc converter using the DAC outputs.Supply margining can be performed with a minimum of external components. The margining loop can be used for in-circuit testing of a board during production (for example, to verify board func-tionality at ?5% of nominal supplies), or it can be used dynamically to accurately control the output voltage of a dc-to-dc converter. APPLICATIONS Central office systems Servers/routers Multivoltage system line cards DSP/FPGA supply sequencing In-circuit testing of margined supplies

The ADM1278 is a hot swap controller that allows a circuit board to be removed from or inserted into a live backplane. It also features current, voltage, power, and temperature readback via an integrated 12-bit analog-to-digital converter (ADC), accessed using a PMBus? interface. The load current is measured using an internal current sense amplifier that measures the voltage across a sense resistor in the power path via the HS+ and HS? pins. A default current limit of 20 mV is set, but this limit can be adjusted, if required.The ADM1278 limits the current through the sense resistor by controlling the gate voltage of an external N-channel FET in the power path, via the GATE pin. The sense voltage, and therefore the load current, is maintained below the preset maximum. The ADM1278 protects the external FET by limiting the time that the FET remains on while the current is at its maximum value.This current-limit time is set by the choice of capacitor connected to the TIMER pin. In addition, a constant power foldback scheme is used to control the power dissipation in the MOSFET during power-up and fault conditions. The level of this power, along with the TIMER regulation time, can be set to ensure that the MOSFET remains within safe operating area (SOA) limits.In case of a short-circuit event, a fast internal overcurrent detector responds within 320 ns and signals the gate to shut down. A 1500 mA pull-down device ensures a fast FET response.The ADM1278 features overvoltage (OV) and undervoltage (UV) protection, programmed using external resistor dividers on the UV and OV pins. A PWRGD signal can be used to detect when the output supply is valid, using the PWGIN pin to accurately monitor the output.The ADM1278 is available in a 32-lead LFCSP with a RETRY pin that can be configured for automatic retry or latch-off when an overcurrent fault occurs.Applications Servers Power monitoring and control/power budgeting Telecommunication and data communication equipment?

The ADM2485 differential bus transceiver is an integrated, galvanically isolated component designed for bidirectional data communication on multipoint bus transmission lines. It is designed for balanced transmission lines and complies with ANSI/TIA/EIA RS-485-A-98 and ISO 8482:1987(E).The device employs Analog Devices, Inc., iCoupler? technology to combine a 3-channel isolator, a three-state differential line driver, and a differential input receiver into a single package. An on-chip oscillator outputs a pair of square waveforms that drive an external transformer to provide isolated power with an external transformer. The logic side of the device can be powered with either a 5 V or a 3.3 V supply, and the bus side is powered with an isolated 5 V supply.The ADM2485 driver has an active high enable. The driver differential outputs and the receiver differential inputs are connected internally to form a differential input/output port that imposes minimal loading on the bus when the driver is disabled or when VDD1 or VDD2 = 0 V. Also provided is an active high receiver disable that causes the receive output to enter a high impedance state.The device has current-limiting and thermal shutdown features to protect against output short circuits and situations where bus contention might cause excessive power dissipation. The part is fully specified over the industrial temperature range and is available in a 16-lead, wide-body SOIC package.Applications Isolated RS-485/RS-422 interfaces PROFIBUS networks Industrial field networks Multipoint data transmission systems

The LTC3115-2 is a high voltage monolithic synchronous buck-boost DC/DC converter optimized for applications subject to fast (<1ms) input voltage transients. For all other applications, the LTC3115-1 is recommended. With its wide 2.7V to 40V input and output voltage ranges, the LTC3115-2 is well suited for use in a wide variety of automotive and industrial power supplies. A proprietary low noise switching algorithm optimizes efficiency with input voltages that are above, below or even equal to the output voltage and ensures seamless transitions between operational modes.Programmable frequency PWM mode operation provides low noise, high efficiency operation and the ability to synchronize switching to an external clock. Switching frequencies up to 2MHz are supported to allow use of small value inductors for miniaturization of the application circuit. Pin selectable Burst Mode operation reduces standby current and improves light load efficiency which, combined with a 3?A shutdown current, make the LTC3115-2 ideally suited for battery-powered applications. Additional features include output disconnect in shutdown, short-circuit protection and internal soft-start. The LTC3115-2 is available in thermally enhanced 16-lead 4mm ? 5mm ? 0.75mm DFN and 20-lead TSSOP packages. Features LTC3115-1 - LTC3115-2 Optimized for applications subject to fast (<1ms) input voltage transients Applications 24V/28V Industrial Applications Automotive Power Systems Telecom, Servers and Networking Equipment FireWire Regulator Multiple Power Source Supplies

The LTC3875 is a dual output current mode synchronous step-down DC/DC controller that drives all N-channel power MOSFET stages. It employs a unique architecture that enhances the signal-to-noise ratio of the current sense signal, allowing the use of very low DC resistance (DCR) power inductors to maximize efficiency in high current applications. This feature also reduces the switching jitter commonly found in low DCR applications with current mode control.The LTC3875 features two high speed differential amplifiers which can be used to compensate for the voltage drop from the LTC3875 to the load. Its DCR temperature compensated adjustable over current trip points from 10mV to 30mV limits the maximum output current precisely over temperature.A unique thermal balancing function adjusts per phase current to minimize the thermal stress for multichip single output applications. The LTC3875 is available in the 40- lead 6mm ? 6mm (0.5mm pitch) and 40-lead 5mm ? 5mm (0.4mm pitch) QFN packages.APPLICATIONS Servers and Instruments Telecom Systems DC Power Distribution Systems

The LTM4677 is a dual 18A or single 36A step-down ?Module? (power module) DC/DC regulator with 40ms turn0on time. It features remote configurability and telemetry-monitoring of power management parameters over PMBus?an open standard I2C-based digital interface protocol. The LTM4677 is comprised of fast analog control loops, precision mixedsignal circuitry, EEPROM, power MOSFETs, inductors and supporting components.The LTM4677?s 2-wire serial interface allows outputs to be margined, tuned and ramped up and down at programmable slew rates with sequencing delay times. Input and output currents and voltages, output power, temperatures, uptime and peak values are readable. Custom configuration of the EEPROM contents is not required. At start-up, output voltages, switching frequency, and channel phase angle assignments can be set by pin-strapping resistors. The LTpowerPlay? GUI and DC1613 USB-to-PMBus converter and demo kits are available.The LTM4677 is pin compatible with the LTM4676A (dual 13A) and is offered in a 16mm ? 16mm ? 5.01mm BGA package available with SnPb or RoHS compliant terminal finish.APPLICATIONS System Optimization, Characterization and Data Mining?in Prototype, Production and Field Environments Telecom, Datacom, and Storage Systems