The DS28E36 is a DeepCover® secure authenticator that provides a core set of cryptographic tools derived from integrated asymmetric (ECC-P256) and symmetric (SHA-256) security functions. In addition to the security services provided by the hardware implemented crypto engines, the device integrates a FIPS/NIST true random number generator (RNG), 8Kb of secured EEPROM, a decrement-only counter, two pins of configurable GPIO, and a unique 64-bit ROM identification number (ROM ID). This unique ROM ID is used as a fundamental input parameter for cryptographic operations and also serves as an electronic serial number within the application. The DS28E36 communicates over the single-contact 1-Wire® bus at overdrive speed. The communication follows the 1-Wire protocol with the ROM ID acting as node address in the case of a multidevice 1-Wire network.The ECC public/private key capabilities operate from the NIST defined P-256 curve and include FIPS 186 compliant ECDSA signature generation and verification to support a bidirectional asymmetric key authentication model. The SHA-256 secret-key capabilities are compliant with FIPS 180 and are flexibly used either in conjunction with ECDSA operations or independently for multiple HMAC functions.Two GPIO pins can be independently operated under command control and include configurability supporting authenticated and nonauthenticated operation including an ECDSA-based crypto-robust mode to support secure-boot of a host processor.DeepCover embedded security solutions cloak sensitive data under multiple layers of advanced security to provide the most secure key storage possible. To protect against device-level security attacks, invasive and noninvasive countermeasures are implemented including active die shield, encrypted storage of keys, and algorithmic methods. Secure Boot and Secure Download - Part 1: Protecting IoT Devices with Secure Authentication Secure Boot and Secure Download - Part 3: Using the DS28C36 Secure Boot and Secure Download - Part 2: Technologies Behind Embedded Security ApplicationsAccessory and Peripheral Secure AuthenticationIoT Node Crypto-ProtectionSecure Boot or Download of Firmware and/or System ParametersSecure Storage of Cryptographic Keys for a Host Controller

The DS28E38 is an ECDSA public key-based secure authenticator that incorporates Maxim’s patented ChipDNA™ PUF technology. ChipDNA technology involves a physically unclonable function (PUF) that enables the DS28E38 to deliver cost-effective protection against invasive physical attacks. Using the random variation of semiconductor device characteristics that naturally occur during wafer fabrication, the ChipDNA circuit generates a unique output value that is repeatable over time, temperature, and operating voltage. Attempts to probe or observe ChipDNA operation modifies the underlying circuit characteristics, preventing discovery of the unique value used by the chip cryptographic functions. The DS28E38 utilizes the ChipDNA output as key content to cryptographically secure all device stored data and optionally, under user control, as the private key for the ECDSA signing operation. With ChipDNA capability, the device provides a core set of cryptographic tools derived from integrated blocks including an asymmetric (ECC-P256) hardware engine, a FIPS/NIST-compliant true random number generator (TRNG), 2Kb of secured EEPROM, a decrement-only counter and a unique 64-bit ROM identification number (ROM ID). The ECC public/ private key capabilities operate from the NIST-defined P-256 curve to provide a FIPS 186-compliant ECDSA signature generation function. The unique ROM ID is used as a fundamental input parameter for cryptographic operations and serves as an electronic serial number within the application. The DS28E38 communicates over the single-contact 1-Wire® bus at both standard and overdrive speeds. The communication follows the 1-Wire protocol with the ROM ID acting as node address in the case of a multidevice 1-Wire network.Sample now!Explore security topics and test drive secure authenticators with the Maxim Security LabRead white paper › Read white paper ›How to Setup the DS28E38 Evaluation Kit and Perform ECDSA Authentication ChipDNA–Defend Your IoT Designs from HackersAlso see: ChipDNA Technology ›ApplicationsAuthentication of Medical Sensors and ToolsIoT Node AuthenticationPeripheral AuthenticationPrinter Cartridge Identification and AuthenticationReference Design License ManagementSecure Management of Limited Use Consumables

The MAX77757 is a standalone 3.15A charger with integrated USB Type-C®CC detection with JEITA compliance that supports reverse boost capability. The fast-charge current is easily configured with resistors. The MAX77757 operates with an input voltage of 4.5V to 13.7V and has a maximum input current limit of 3A. The IC also implements the adaptive input current limit (AICL) function that regulates the input voltage by reducing input current to prevent the voltage of a weak adapter from collapsing or folding back.The USB Type-C Configuration Channel (CC) detection pins on the MAX77757 enable automatic USB Type-C power source detection and input current limit configuration. To support a variety of legacy USB types as well as proprietary adapters, the IC also integrates BC1.2 detection using the D+ and D- pins. The IC runs the CC pin and BC1.2 detection automatically as soon as a USB plug is inserted without any software control.The IC also offers reverse-boost capability up to 5.1V and 1.5A, which can be enabled with the ENBST pin. The STAT pin indicates charging status while the INOKB pin indicates valid input voltage. Charging can be stopped by pulling the THM pin low.The MAX77757 is equipped with a Smart Power Selector™ and a battery true-disconnect FET to control the charging and discharging of the battery or to isolate the battery in case of a fault. The MAX77757 is offered in several variants to support Li-ion batteries with various termination voltages from 4.1V to 4.5V. It also has a 3.6V termination voltage option for LiFePO4 batteries. The IC comes in a 3mm x 3mm, 0.4mm pitch, 24-lead FC2QFN package making it suitable for low-cost PCB assembly.ApplicationsMobile Point-of-Sale (mPOS) TerminalsPortable Medical DevicesWireless HeadphonesGPS TrackersCharging Cradles for Wearable DevicesPower BanksMobile Routers

The MAX77840 is a 3.15A switched-mode charger and ModelGauge™ fuel gauge with integrated USB BC1.2 detection for Li-ion batteries and a SAFEOUT LDO.The charger integrates all switches and operates at either 4MHz or 2MHz (programmable) switching frequency, allowing selection of the smallest external components or achieving lowest heat dissipation. The MAX77840 is ideally suited for devices such as mobile point-of-sale devices, portable medical electronics, or other handheld devices. It includes the USB BC1.2 detection function to recognize common USB adapters and set the input current limit automatically. The MAX77840 can supply up to 1.5A OTG current with proprietary MAXOTG protection, that limits the OTG output current to prevent system voltage from collapsing under heavy OTG loads.The ModelGauge m5 provides accurate battery fuel gauging and operates with extremely low battery current (25µA, typ) during standby or sleep mode to extend battery life. The interaction between the ModelGauge m5 and the charger provides end users a superior charging experience in a single IC.Shipping mode is built into the MAX77840 to minimize battery drain when the device is not in use. The MAX77840 features an I2C 3.0 compatible serial interface. It is offered in a 3.87mm x 3.96mm, 9 x 9 bump array wafer-level package (WLP) with 0.4mm pitch.ApplicationsIndustrial PCsPortable Medical DevicesMobile Point-of-Sale DevicesWireless SpeakersE-CigarettesSmart Home Automation, SensorsInternet of Things (IoT)

The MAX86150 is an integrated electrocardiogram, pulse oximeter, heart rate monitor sensor module. It includes internal LEDs, photodetector, and low-noise electronics with ambient light rejection. The MAX86150 helps ease design-in to mobile and wearable devices. The MAX86150 operates on a 1.8V supply voltage with a separate power supply for the internal LEDs. Communication to and from the module is entirely through a standard I2C-compatible interface. The module can be shut down through software with near zero standby current, allowing the power rails to remain powered at all times.ApplicationsFitness Assistant DevicesSmartphonesTabletsWearable Devices

The MAX86150 is an integrated electrocardiogram, pulse oximeter, heart rate monitor sensor module. It includes internal LEDs, photodetector, and low-noise electronics with ambient light rejection. The MAX86150 helps ease design-in to mobile and wearable devices. The MAX86150 operates on a 1.8V supply voltage with a separate power supply for the internal LEDs. Communication to and from the module is entirely through a standard I2C-compatible interface. The module can be shut down through software with near zero standby current, allowing the power rails to remain powered at all times.ApplicationsFitness Assistant DevicesSmartphonesTabletsWearable Devices

The MAX98050 is a low-power, high-performance audio CODEC with integrated low-latency digital filters for wireless hearables, headsets, and headphones.The device features a mono playback channel with a 5-band biquad equalizer and a high-efficiency, fully differential hybrid class-AB/class-D headphone amplifier. The playback headphone amplifier is optimized for extremely low output noise levels and minimized quiescent power consumption while maximizing output power efficiency.The device includes three microphone input channels capable of supporting voice, ambient, and anti-noise record use cases. Each channel can individually record from either an external analog or digital microphone, and then can route audio data to both the record channels (to the digital audio interface) and the internal low-latency digital filter channels. A fourth record channel to the digital audio interface is provided to allow the host to monitor the playback channel output digital data.Two low-latency, digital filter channels are provided that can support a variety of use cases. These include noise cancellation applications (feed-forward, feedback, and hybrid filter profiles), both voice and ambient enhancement and transparency applications, and sidetone applications. Each channel provides a 12-band digital biquad filter, a DRC or Limiter stage, a digital volume control block, and an ultrasound filter. In addition, a third internal digital filter channel is provided in the playback channel that is structured for playback compensation and/or general feedback compensation filters. This channel includes a 10-band biquad filter and a digital volume control block. To support dynamic or adaptive filter and use case transitions, the biquad filters and volume controls provide banked profiles that can be updated/swapped without disruption to audio playback.The flexible digital audio interface supports common PCM audio data formats such as I2S, left-justified, and TDM timing with 16-bit, 24-bit, or 32-bit data word and channel lengths. The PCM interface supports playback sample rates from 8kHz to 192kHz and record sample rates from 8kHz to 48kHz. The device requires external bit and frame clocks but eliminates the need for a high-speed external master clock.The device is available in a small 6.7mm2 36-bump WLP package (0.4mm pitch) with a low 0.5mm height ideal for tight form factors. The device operates over the extended -40°C to +85°C temperature range.ApplicationsTrue Wireless Hearables and HeadsetsStereo Bluetooth Headsets and HeadphonesMono Bluetooth EarpiecesPSAP Devices and Hearing Assist DevicesVR/AR Headsets and Head-Mounted Devices

The MAX40200 is an ideal diode current-switch that drops so little voltage that it approaches an order of magnitude better than Schottky diodes.When forward-biased and enabled, the MAX40200 conducts with as little as 85mV of voltage drop while carrying currents as high as 1A. Typical voltage drop is 43mV at 500mA, with the voltage drop increasing linearly at higher currents. The MAX40200 thermally protects itself, and any downstream circuitry, from overtemperature conditions.When disabled (EN = low) the MAX40200 blocks voltages up to 6V in either direction, making it suitable for most low-voltage, portable electronic devices. The MAX40200 operates from a supply voltage of 1.5V to 5.5V.The MAX40200 is available in a tiny, 0.73mm X 0.73mm, 4-bump wafer-level package (WLP), with a 0.35mm bump pitch and only 0.5mm high and 5-pin SOT-23 package. The MAX40200 operates over the extended -40°C to +125°C temperature range.Design Solution: Cut Your Losses—With an Ideal Diode ›Design Solution: Design a Cooler, Safer Smart-Home Hub—Using an Ideal Diode ›How to Add a Diode ORing or Battery Backup Circuit Using the MAX40200 Ideal DiodeApplicationsCellular PhonesElectronic ToysNotebook and Tablet ComputersPortable Media PlayersPortable/Wearable Medical DevicesUSB-Powered Peripherals

The DS26518 is an 8-port framer and line interface unit (LIU) combination for T1, E1, J1 applications. Each port is independently configurable, supporting both long-haul and short-haul lines. The DS26518 Single-Chip Transceiver (SCT) is software and pinout compatible with the 4-port DS26514. It is nearly software compatible with the DS26528 and its derivatives.ApplicationsChannel BanksChannel Service Units (CSUs)Data Service Units (DSUs)MuxesRoutersSwitchesT1/E1 Test Equipment

The MAX8688 fully integrated digital power-supply controller and monitor IC works with any existing POL (point-of-load) power supply to provide complete digital programmability. By interfacing to the reference input, feedback node, and output enable, the MAX8688 takes control of the POL to provide functions such as perfect tracking, sequencing, margining, and dynamic adjustment of the output voltage.The MAX8688 offers an accurate 12-bit analog-to-digital converter (ADC) accompanied with two differential amplifiers for accurately monitoring both voltage and current. An integrated 12-bit digital-to-analog converter (DAC) is also available to margin power supplies as well as dynamically adjust the output voltage with 0.2% accuracy over temperature using this closed-loop system. An internal temperature sensor provides an additional level of system monitoring.The user-programmable registers provide flexible and accurate control of time events such as a delay time and transition period, monitoring for overvoltage and undervoltage, overcurrent, reverse-current, overtemperature fault and warning handling. The closed-loop operation is also programmable to make sure the MAX8688 works with any existing POL to provide superior regulation accuracy and accurate margining.The MAX8688 operates using a PMBus™-compliant communication protocol. The device is programmed using this protocol or simply with the use of a free graphic-user interface (GUI) available from the Maxim website that significantly reduces development time. Once the configuration is complete, the results can be saved into an EEPROM or loaded onto the part through the PMBus at power-up. This allows remote configuration of any POL using the MAX8688, replacing expensive recalls or field service. Module current sharing is also supported, since accurate current measurement and fine resolution voltage control are available. The MAX8688 can be programmed with up to 127 distinct addresses to support large systems. The MAX8688 is offered in a space-saving, 24-pin, lead-free 4mm x 4mm TQFN package.ApplicationsDC-DC Modules and POLsHigh-Reliability Infrastructure EquipmentServersTelecom Networking