Future Electronics – Analog Corner


- Drivers

AL8862: 60V/1A Buck LED Driver

The AL8862 is a step down DC/DC converter designed to drive LEDs with a constant current. The AL8862 operates with an input supply voltage from 5V to 60V and provides an externally adjustable output current up to 1A. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors. The AL8862 integrates the power switch and a high side output current sensing circuit. Maximum output current of AL8862 is set via an external resistor connected between the VIN and SET input pins. Dimming is achieved by applying either a DC voltage or a PWM signal at the CTRL input pin.

  • 5V to 60V input voltage range
  • Internal 60V NDMOS switch
  • Single pin for on/off and brightness control
  • LED short circuit protection
  • Current-sense resistor short-circuit protection
  • Up to 1MHz switching frequency
  • Up to 1A output current
  • Typical 4% output current accuracy
  • Up to 97% efficiency
  • Inherent open circuit LED protection
  • Over-temperature shutdown
  • SO-8EP packages

US168KLD: Low Noise Single-Coil Fan Driver

The US168KLD is an automotive grade single-chip solution for driving single-coil brushless DC fans and motors. The soft switching characteristics ensure low levels of EMI and acoustic noise, making it ideal for in-cabin automotive applications such as sensor fans as well as other applications such as cooling fans for wireless chargers, computing, audio and multimedia. Configured as a full bridge driver with the ability to drive motor currents up to 300mA and a supply range from 1.8V to 5V, the device include a highly sensitive integrated Hall effect sensor. Built-in reverse voltage, locked rotor, and thermal protection ensure that the drivers are robust, even in challenging applications.

  • Soft switching for low noise
  • Full bridge driver
  • Low power consumption
  • Locked rotor protection and auto-restart
  • No external components needed
  • Tachometer output signal (FG)
  • 1.8V to 6.5V supply voltage
  • High sensitivity integrated Hall sensor
  • Reverse voltage protection
  • Thermal protection and auto-restart
  • Thin SOT23-5L RoHS compliant package
  • Ultra thin leadless UTQFN-6L RoHS compliant package

- Power Regulation, Conversion and Management

P9242:15W Wireless Charging Transmitter with Bi-Directional Data Communication

The P9242-R3 is a highly-integrated 15W magnetic induction wireless power transmitter with in-band, bi-directional data communication requiring no additional circuitry. The communication channel can be used for proprietary device authentication and secure system data transfer. The P9242-R3 includes a 32-bit ARM® Cortex®-M0 processor, foreign object detection (FOD), wide input voltage range operation, full bridge drivers, and on-chip simultaneous voltage and current demodulation. It features programmable overcurrent protection, programmable LED output blinking pattern, and I2C serial interface protocol to read back information such as voltage, current, and fault conditions.

  • 0.6V to 4.5V input voltage range
  • 500mA at VOUT=3.3V maximum output current
  • 7μA current consumption in PFM mode
  • Pass-through function (VIN > VOUT)
  • Thermal shutdown
  • Disconnect function during EN-OFF and UVLO
  • Reset function
  • 10-pin “VSON010X3020” package
  • 1k MSRP: $0.49

BU33UV7NUX: Synchronous Boost DC/DC Converter

BU33UV7NUX is a synchronous boost converter with low power consumption and provides a power supply for products powered by either two-cell alkaline/NiCd/NiMH or one-cell Li-ion or Li-polymer battery. Output currents can go as high as 500mA while using two alkaline, and discharge it down to 1.8V. BU33UV7NUX has reset circuit. (Detection voltage: 1.5V, release voltage: 1.9V) BU33UV7NUX output voltage is fixed 3.3V by internal resistor divider. VOUT is connected with VIN when VIN voltage is higher than 3.3V.

  • 30V to 60V input voltage range
  • Parallel capable with single wire current sharing
  • Output over-voltage protection
  • Fast and slow current limits
  • User adjustable soft start and tracking
  • Power-up into pre-biased load ≤ 6.0V
  • Input over-/under-voltage lockout
  • Over-temperature protection
  • Differential amplifier for output remote sensing
  • -40°C to +120°C operating range

PI3523: 30 - 60VIN Cool-Power ZVS Buck Regulator

The PI352x-00 is a family of high input voltage, wide input range DC-DC ZVS buck regulators integrating controller, power switches, and support components all within a high density System-in-Package (SiP). The integration of a high-performance Zero-Voltage Switching (ZVS) topology, within the PI352x-00 series, increases point of load performance providing best in class power efficiency. The PI352x-00 requires only an external inductor, two voltage selection resistors and minimal capacitors to form a complete DC/DC switch mode buck regulator.

  • 30V to 60V input voltage range
  • Parallel capable with single wire current sharing
  • Output over-voltage protection
  • Fast and slow current limits
  • User adjustable soft start and tracking
  • Power-up into pre-biased load ≤6.0V
  • Input over-/under-voltage lockout
  • Over-temperature protection
  • Differential amplifier for output remote sensing
  • -40°C to +120°C operating range
  • Adjustable switching frequency from 50kHz to 1.1MHz
  • 24-lead 4 x 4mm QFN package
  • 1k MSRP: $2.45 US

- Sensors

PCAP04: Low-Power Capacitance-to-Digital Converter with 32-bit DSP and Guarding

PCAP04 is a capacitance-to-digital converter (CDC) with integrated digital signal processor (DSP) for on-chip data post-processing. Its front end is based on ams PICOCAP principle. This conversion principle offers outstanding flexibility with respect to power consumption, resolution and speed. Further, PCAP04 covers a wide capacitance input range from a few femtofarads up to several hundreds of nanofarads. It is easy to configure the PCAP04 for different capacitance measurement tasks, i.e. single as well as differential sensors, in both grounded or floating connection.

  • Up to 6 capacitors in grounded mode
  • Up to 3 capacitors in floating mode
  • SPI, I2C, PDM, PWM interfaces
  • 50kHz sample rate
  • 3k ROM code, 1k NVRAM and 96 x 32 bit RAM
  • Internal reference 1 to 31pF
  • Integrated guarding operational amplifier
  • 3.0V to 3.6V operating supply range
  • QFN24 package
  • 1k MSRP: $2.95

AR0820AT: 8.3 MP, 1/2-inch High-Resolution CMOS Digital Image Sensor

The AR0820AT is a 1/2-inch CMOS digital image sensor with a 3848H x 2168V active-pixel array. This advanced automotive sensor captures images in either linear or high dynamic range, with rolling-shutter readout. It is optimized for both low light and challenging high dynamic range scene performance, with a 2.1μm DR-Pix BSI pixel and on-sensor 140dB HDR capture capability. The sensor includes advanced functions such as in-pixel binning, windowing, and both video and single frame modes to provide flexible Region of Interest (ROI) or specific resolution in order to enhance performance in extreme low light conditions. The sophisticated sensor fault detection features and embedded data on AR0820AT are designed to enable camera ASIL B compliance.

  • High performance 2.1μm automotive grade backside illuminated (BSI) Pixel with DR-Pix™ technology
  • Fast full resolution video capture of 3840 x 2160 at up to 40fps in 3-exposure HDR and 30fps in 4-exposure HDR
  • Sensor fault detection for ASIL-B compliance support
  • 1.8Gbps/lane, 4-lane MIPI CSI-2 data interface
  • Frame to frame switching among up to 4 contexts
  • Advanced on-sensor HDR reconstruct with flexible exposure ratio control
  • Line interleaved T1/T2/T3/T4 output
  • 2 x 2 ins-pixel binning mode and color binning mode
  • Selectable automatic or user controlled black level control
  • Multi-camera synchronization support

AMG8854M01: Narrow Angle Infrared Array Sensor

The AMG8854M01 Grid-EYE Infrared Array Sensor features 64 thermopile elements in an 8 x 8 grid format that detect absolute temperatures by infrared radiation. The sensor is able to provide thermal images by measuring actual temperature and temperature gradients. It enables detection of multiple persons, identification of positions and direction of movement, almost independent of ambient light conditions without disturbing privacy as with conventional cameras. The built-in silicon lens provides a viewing angle of 35.6° allows the sensor to focus on closer objects with enough pixels to be able to identify and measure those objects. Measurement values are viewable through an I2C interface in 1 or 10 frames per second.

  • 8 x 8 (64 pixels) sensor array
  • 35.6 ±3.0° viewing angle
  • 6mA current consumption in normal mode
  • PCB mounting with 5-pin connector
  • I2C (fast mode) Interface
  • Temperature value output
  • ±3.0°C temperature accuracy
  • -20°C to +100°C operating temperature range