The ADM1186-1 and ADM1186-2 are integrated, four-channel, voltage monitoring and sequencing devices. A 2.7 V to 5.5 V power supply is required on the VCC pin for power.Four precision comparators monitor four voltage rails, with all comparators sharing a 0.6 V reference and a worst-case accuracy of 0.8%. Resistor networks that are external to the VIN1, VIN2, VIN3, and VIN4 pins set the Under Voltage (UV) trip points for the monitored supply rails.The ADM1186-1 and ADM1186-2 have four open drain enable outputs, OUTx, that are used to enable power supplies. An open drain power good output, PWRGD, is provided that indicatesthe four VINx inputs are above their UV thresholds.A state machine monitors the state of the UP and?DOWN pins on the ADM1186-1 or the UP/overbar: DOWN pin on the ADM1186-2 to control the supply sequencing direction. In the ?Wait Start?state, a rising edge transition on the UP or UP/DOWN pin triggers a power-up sequence. A falling edge transition on the DOWN or UP/DOWN pin in the ?Power Up Done? statetriggers a power down sequence.During a power up sequence, the state machine enables each power supply in turn. The supply output voltage is monitored to determine if it rises above the UV threshold level within a userdefined duration called the blanking time. If a supply rises above the UV threshold then the next enable output in the sequence is turned on. In addition to the blanking time a user may also define sequencing time delays between each enable output turning on. When all four enable outputs are on, and the four VINx pins are above their UV trip points the power up sequence is complete. The ADM1186-1 provides an open drain pin, SEQ_DONE, that is asserted high to provide an indication that an up sequence is complete. The SEQ_DONE pins is allows multiple cascadedADM1186-1 devices to be perform controlled power up and down sequences. During a power down sequence the enable outputs turn off inreverse order. The sequence time delays between successive supplies the same as during the power up sequence, and no blanking time is used during a power down sequence. At the end of a down sequence the SEQ_DONE pin is brought low. During sequencing and when powered up, the state machine continuously monitors for any fault conditions. Faults include a UV condition on any of the inputs, or an unexpected controlinput. Any fault that occurs causes the state machine to enter a fault handler. This immediately turns off all enable outputs, and ensures that the device is ready to start a new up sequence. The ADM1186-1 has a bi-directional open drain pin, FAULT, that facilitates fault handling when using multiple devices. An ADM1186-1 experiencing a fault condition drives the FAULT pin low, causing other connected ADM1186-1devices to enter their own fault handling state.The ADM1186-1 is available in a 20-lead QSOP package andthe ADM1186-2 is available in a 16-lead QSOP package.

LM25085AMYEEVAL 42V Constant On-Time PFET Buck Switching Controller with 0.9V Reference

DRV8838 Low Voltage Brushed DC Motor Driver Evaluation Module

Evaluation Module for TPS54233 Step-Down Converter with Eco-mode

Evaluation Module for Step-Down Charge Pump TPS60500

The ADXL343 is a versatile 3-axis, digital-output, low?g MEMS accelerometer. Selectable measurement range and bandwidth, and configurable, built-in motion detection make it suitable for sensing acceleration in a wide variety of applications. Robustness to 10,000 g?of shock and a wide temperature range (?40?C to +85?C) enable use of the accelerometer even in harsh environments.The ADXL343 measures acceleration with high resolution (13-bit) measurement at up to ?16g. Digital output data is formatted as 16-bit twos complement and is accessible through either an SPI (3- or 4-wire) or I2C digital interface. The ADXL343 can measure the static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration resulting from motion or shock. Its high resolution (3.9 mg/LSB) enables measurement of inclination changes less than 1.0?.Several special sensing functions are provided. Activity and inactivity sensing detect the presence or lack of motion. Tap sensing detects single and double taps in any direction. Free-fall sensing detects if the device is falling. These functions can be mapped individually to either of two interrupt output pins.An integrated memory management system with a 32-level first in, first out (FIFO) buffer can be used to store data to minimize host processor activity and lower overall system power consumption.The ADXL343 is supplied in a small, thin, 3 mm ? 5 mm ? 1 mm, 14-terminal, plastic package.APPLICATIONS Handsets Gaming and pointing devices Hard disk drive (HDD) protection

The ADE12011 is a single channel, configurable, isolated?digital input monitoring solution for energy transmission and?distribution applications. The ADE1201 is configured through?the serial port interface (SPI) to perform an isolated measurement?of the digital input that is also called binary input or contact?input. The ADE1201 digital output signal on the DOUT1 pin?reflects the state of the input signal after user configurable?signal conditioning. The SPI protocol supports addressing to?allow up to eight devices sharing one 4-wire SPI port.The ADE1201 application circuit accepts a wide range of input?voltages from ?10 V dc to ?300 V dc, or 8 V rms to 240 V rms.?The programmable wetting current and robust application?circuit enable the device to meet stringent, system level?electromagnetic capability (EMC) requirements.The ADE1201 includes an isoPower? integrated, isolated dc-to-dc?converter that eliminates the need for an external isolated power?supply. The iCoupler? chip scale transformer technology is?used to isolate the logic signals between the high voltage,?isolated side and the low voltage, nonisolated side of the?digital input monitor. This technology creates a small form?factor design that includes data and power isolation.An integrated successive approximation register (SAR)?analog-to-digital converter (ADC) and a programmable gain?amplifier (PGA) from 1? to 10? measure the analog inputs.?The ADC waveforms are available through the SPI port to?allow system level diagnostics.Product Highlights Single channel, configurable, isolated digital input. Single hardware design supports 24 V to 300 V systems. Robust architecture. Enables system level diagnostics.Applications Energy transmission and distribution Multifunction relay protection Substation battery monitoring Bay or substation interlocking Merge unit Circuit breaker status indication Remote terminal unit Building automation1 Protected by U.S. Patent Number 2017/0250043. Other patents pending.

The ADGS1208/ADGS1209 are analog multiplexers comprisingeight single channels and four differential channels, respectively. Aserial peripheral interface (SPI) controls the switches. The SPIinterface has robust error detection features, such as cyclicredundancy check (CRC) error detection, invalid read/writeaddress detection, and SCLK count error detection.It is possible to daisy-chain multiple ADGS1208/ADGS1209devices together. Daisy-chain mode enables the configuration ofmultiple devices with a minimal amount of digital lines. TheADGS1208/ADGS1209 can also operate in burst mode todecrease the time between SPI commands.iCMOS? construction ensures ultralow power dissipation,making the devices ideally suited for portable and batterypoweredinstruments.Each switch conducts equally well in both directions when on,and each switch has an input signal range that extends to thesupplies. In the off condition, signal levels up to the suppliesare blocked. The ultralow on capacitance (CON) and exceptionally low chargeinjection (QINJ) of these multiplexers make them ideal solutionsfor data acquisition and sample-and-hold applications, wherelow glitch and fast settling are required.Product Highlights SPI interface removes the need for parallel conversion, logic traces and reduces GPIO channel count. Daisy-chain mode removes additional logic traces when multiple devices are used. CRC error detection, invalid read/write address detection, and SCLK count error detection ensures a robust digital interface. CRC and Error detection capabilities allows for the use of the ADGS1208/ADGS1209 in safety critical systems.Applications Audio and video routing Automatic test equipment Data-acquisition systems Battery-powered systems Sample-and-hold systems Communication systems

The LTC3766 is a PolyPhase-capable secondary-side controller for synchronous forward converters. When used in conjunction with the LTC3765 active-clamp forward controller and gate driver, the part creates a complete isolated power supply that combines the power of multiphase operation with the speed of secondary-side control.The LTC3766 has been designed to simplify the design of active clamp forward converters. Working in concert with the LTC3765, the LTC3766 forms a robust, self-starting converter that eliminates the need for the separate bias regulator that is commonly used in secondary-side control applications. A precision current-limit coupled with clean start-up into a pre-biased load make the LTC3766 an excellent choice for high-power battery charger applications.The LTC3766 provides extensive remote sensing and output protection features, while Direct Flux Limit guarantees no transformer saturation without compromising transient response. A linear regulator controller and internal bypass LDO are also provided to simplify the generation of the secondary-side bias voltage.Applications Isolated 48V Telecommunication Systems Isolated Battery Chargers Automotive and Military Systems Industrial, Avionics and Heavy Equipment

The ADuM4146 is a single-channel gate driver specifically optimized for driving silicon carbide (SiC), metal-oxide semiconductor field effect transistors (MOSFETs). Analog Devices, Inc., iCoupler? technology provides isolation between the input signal and the output gate drive.The ADuM4146 includes a Miller clamp to provide robust SiC turn off with a single-rail supply when the gate voltage drops to less than 2 V. Operation with unipolar or bipolar secondary supplies is possible with or without the Miller clamp operation.The Analog Devices chip scale transformers also provide isolated communication of control information between the high voltage and low voltage domains of the chip. Information on the status of the chip can be read back from dedicated outputs. Control of resetting the device after a fault on the secondary side is performed on the primary side of the device.Integrated onto the ADuM4146 is a desaturation detection circuit that provides protection against high voltage short-circuit SiC operation. The desaturation protection contains noise reducing features, such as a 300 ns masking time after a switching event to mask voltage spikes due to initial turn on (see Figure 17 in the data sheet). An optional internal 500 ?A current source allows low device count, and the internal blanking switch allows the addition of an external current source if more noise immunity is needed.The secondary undervoltage lockout (UVLO) is set to 14.5 V (typical) for Grade A and is set to 11.5 V (typical) for Grade B and Grade C with common SiC and insulated gate bipolar transistor (IGBT) levels taken into consideration. APPLICATIONS SiC/MOSFET/IGBT gate drivers Photovoltaic (PV) inverters Motor drives Power supplies