Interface Development Tools EVKIT for 2.75KV/5KV Isolated 20Mbps Half-Duplex RS-485 Transceiver with +/-30KV ESD

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The MAX8586 single current-limited switch controls up to 1.2A to power USB applications and has multiple protection features including thermal shutdown, internal current limiting, and reverse current protection. The thermal shutdown limits junction temperature during a prolonged short or overload condition. The internal current-limiting circuitry protects the input supply against overload and is programmable using an external resistor. The MAX8586 meets all IEC specifications for USB ports.The IC latches off when the output experiences a short circuit for more than 20ms, saving system power. Auto-restart tests the shorted output with a 25mA current to determine if the short still exists. Once the short is removed, the MAX8586 automatically restarts the output. An open-drain fault signal notifies the system that the internal current limit has been reached. A 20ms fault-blanking feature allows the circuit to ignore momentary faults such as those caused when hot-swapping into a capacitive load. An ENRESET input is available to disable the auto-restart function.The MAX8586 features a SEL input that programs ON to be either active high or active low. The IC is supplied in a space-saving, 8-pin, 3mm x 3mm TDFN package.ApplicationsDesktop/Notebook ComputersDocking StationsPDAs and Palmtop ComputersUSB Ports/Hubs

The MAX40075/MAX40088 are wideband, low-noise, low-input bias current operational amplifiers offering rail-to-rail outputs and single-supply operation down to 2.7V. They draw 2.2mA of quiescent supply current per amplifier when enabled and have ultra-low distortion (0.0002% THD+N), as well as low input voltage-noise density (4.2nV/) and low input current-noise density (0.5fA/). The low input bias current and low noise together with the wide bandwidth suit transimpedance amplifiers and imaging applications.For power conservation, the MAX40075/MAX40088 offer a low-power shutdown mode that reduces supply current to 0.1µA and places the amplifiers outputs into a high impedance state. These amplifiers have outputs which swing rail-to-rail and their input common-mode voltage range includes ground. The MAX40075 is unity-gain stable with a gain-bandwidth product of 10MHz. The MAX40088 is gain-of-5 stable with a gain-bandwidth product of 42MHz.ApplicationsADC BuffersAutomotive Power TrainDAC Output AmplifiersDigital ScalesLow-Noise Microphone/PreamplifiersMedical InstrumentationStrain Gauges/Sensor AmplifiersTransimpedance Amplifiers

The MAX44267 precision, low-noise, low-drift dual operational amplifier offers true-zero output that allows the output to cross zero maximizing the dynamic range of an ADC and increasing resolution. In addition, the input common-mode range extends from +13.5V down to -12V. The MAX44267 integrates charge-pump circuitry that generates the negative voltage rail in conjunction with external capacitors. This allows the amplifier to operate from a single +4.5V to +15V power supply, but it is as effective as a normal dual-rail ±4.5V to ±15V amplifier. The architecture eliminates the need for a negative power-supply rail, saving system cost and size.The MAX44267 is unity-gain stable with a gain-bandwidth product of 5MHz. The device features low offset voltage of 50µV (max), drift of 0.4µV/°C (max), and 200nVP-P noise from 0.1Hz to 10Hz. The low offset and noise specifications and wide input common-mode range make the device ideal for sensor transmitters and interfaces. Varying the external charge pump capacitors enables the charge-pump noise to be minimized.The MAX44267 is part of a family of signal chain ICs including amplifiers, multiplexers and ADCs. These ICs eliminate the need for a negative supply to the multiplexer, amplifier and ADC, saving space and cost. See the Typical Application Circuit and Table 1 for more information.The MAX44267 is available in a 14-pin TSSOP package and is specified over the -40°C to +125°C operating temperature range.ApplicationsAnalog Level Shifting/ConditioningBridge SensorsPLC Analog I/O ModulesPressure SensorsSensor Interfaces

The MAX17242/MAX17243 high-efficiency, synchronous step-down DC-DC converters with integrated MOSFETs operates over a 3.5V to 36V input voltage range, and can operate in drop-out condition by running at 99% duty cycle. The converters deliver up to 2A (MAX17242) and3A (MAX17243) output current and generate fixed outputvoltages of 3.3V/5V, along with the ability to program theoutput voltage between 1V to 10V.The devices use a current-mode-control architecture andcan be operated in the pulse-width modulation (PWM)or pulse-frequency modulation (PFM) control schemes.PWM operation provides constant frequency operation atall loads, and is useful in applications sensitive to switchingfrequency. PFM operation disables negative inductorcurrent and additionally skips pulses at light loads forhigh-efficiency operation. The low-resistance, on-chipMOSFETs ensure high efficiency at full load and simplifythe layout.The devices are available in a compact 20-pin (5mm x 5mm)TQFN package with exposed pad. These parts are rated for -40°C to +85°C operation.Design Solution: Online Simulator Validates Buck Converter Output Error Budget Analysis ›ApplicationsDistributed Supply RegulationGeneral-Purpose Point-of-LoadWall Transformer Regulation

The MAX17242/MAX17243 high-efficiency, synchronous step-down DC-DC converters with integrated MOSFETs operates over a 3.5V to 36V input voltage range, and can operate in drop-out condition by running at 99% duty cycle. The converters deliver up to 2A (MAX17242) and3A (MAX17243) output current and generate fixed outputvoltages of 3.3V/5V, along with the ability to program theoutput voltage between 1V to 10V.The devices use a current-mode-control architecture andcan be operated in the pulse-width modulation (PWM)or pulse-frequency modulation (PFM) control schemes.PWM operation provides constant frequency operation atall loads, and is useful in applications sensitive to switchingfrequency. PFM operation disables negative inductorcurrent and additionally skips pulses at light loads forhigh-efficiency operation. The low-resistance, on-chipMOSFETs ensure high efficiency at full load and simplifythe layout.The devices are available in a compact 20-pin (5mm x 5mm)TQFN package with exposed pad. These parts are rated for -40°C to +85°C operation.Design Solution: Online Simulator Validates Buck Converter Output Error Budget Analysis ›ApplicationsDistributed Supply RegulationGeneral-Purpose Point-of-LoadWall Transformer Regulation

The MAX17551 high-efficiency, high-voltage, synchronousstep-down DC-DC converter with integratedMOSFETs operates over a 4V to 60V input. The convertercan deliver up to 50mA and generates output voltagesfrom 0.8V up to 0.9 x VIN. The feedback (FB) voltage isaccurate to within ±1.75% over -40°C to +125°C.The MAX17551 uses peak-current-mode control and canbe operated in pulse-width modulation (PWM) or pulse-frequencymodulation (PFM) modes.The device is available in a 10-pin (3mm x 2mm) TDFNand 10-pin (5mm x 3mm) µMAX® packages. Simulationmodels are available.ApplicationsBattery-Powered EquipmentHigh-Voltage LDO ReplacementHVAC and Building ControlIndustrial Sensors and Process Control

The MAX17559 is a dual-output, synchronous step-down controller that drives nMOSFETs. The device uses a constant-frequency, peak-current-mode architecture.The two outputs can be configured as independent voltage rails. Input capacitor size is minimized by running the two outputs 180° out-of-phase.The IC supports current sensing using either an external current-sense resistor for accuracy or an inductor DCR forimproved system efficiency. Current foldback or latchoff limits MOSFET power dissipation under short-circuit conditions.The IC provides independent adjustable soft-start/stop for each output and can start up monotonically into a prebiased output. The IC can be configured in either PWM or DCM modes of operation, depending on whether constant-frequency operation or light-load efficiency is desired.The IC operates over the -40°C to +125°C temperature range and is available in a lead(Pb)-free, 7mm × 7mm, 32-pin TQFP, package.ApplicationsComputerized Numerical ControlDistributed DC Power SystemsIndustrial Power SuppliesMotion ControlProgrammable Logic Controllers