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New Japan Radio

500mW monaural speaker amplifier

The NJU72060 is a 500mW-output audio power amplifier. It is suitable for various applications that require voice guidance, notification sound or alarm. The built-in BTL amplifier reduces output coupling capacitor. The voltage gain is set by the user-selected resistors (Ri, Rf). The NJU72060 has a shutdown function providing low current consumption at no input signals (mute). It also reduces pop noise turning active and shutdown mode.

  • 2.7V to 5.5V operating voltage
  • 3mA operating current
  • 500mW output power with 8Ω or 16Ω load @5V
  • 270mW output power with 8Ω load @3.3V
  • Pop noise suppression circuit
  • Single-end input and differential input corresponds
  • Thermal shutdown circuit
  • MSOP8(VSP8), HSOP8-M1, DFN8-V1(ESON8-V1) packages
New Japan Radio NJU72060

 


 

Diodes Incorporated

High-efficiency synchronous DC-DC buck-boost converter with 4.3A switches

The AP72200 employs Diodes Incorporated’s proprietary buck/boost current-mode control technology to achieve excellent voltage regulation and a continuous output current of up to 2A. The design allows for seamless transition between buck and boost operation while the wide 2.3V to 5.5V input voltage range provides flexibility of supply and produces between 2.6V to 5.14V output voltage. The integrated H-bridge MOSFETs feature extremely low on-resistance of 25mΩ and a shutdown current of less than 1μA. Quiescent current is as low as 20μA when operating in non-switching mode and a typical of 29μA in PFM mode.

  • 2.3V to 5.5V VIN
  • 2.6V to 5.14V output voltage range
  • 2A Continuous output current for VOUT = 3.4V and VIN >2.9V
  • Up to 97% efficiency
  • I2C interface
  • Fully protected for over-current, short circuit, reverse current, over voltage and UVLO
  • Selectable MODE PFM/PWM
  • 2.5MHz switching frequency
  • Ultrasonic operation programmable through I2C
  • Power good indicator with 5MΩ internal pull-up
  • Adjustable over-current limit
  • 2.125mm × 1.750mm, 20 balls WLCSP package

 


 

Maxim Integrated

Four-channel, fast, low-power, reinforced isolation 5kVRMS digital isolators

The MAX22444 to MAX22446 are reinforced, fast, low-power 4-channel digital galvanic isolators using Maxim’s proprietary process technology. These devices transfer digital signals between circuits with different power domains, using as little as 0.74mW per channel at 1Mbps (1.8V supply). The MAX22444 features four channels transferring digital signals in one direction for applications such as isolated digital I/O. The MAX22445 has three channels transmitting data in one direction and one channel transmitting in the opposite direction, making them ideal for applications such as isolated SPI and RS-485 communication. The MAX22446 provides further design flexibility with two channels in each direction for isolated RS-232 or other applications.

  • Up to 200Mbps maximum data rate
  • Withstands 5kV<sub>RMS</sub> for 60s (VISO)
  • Withstands ±10kV surge between GNDA and GNDB with 1.2/50μs wave-form
  • Active-high or Active-low enable inputs
  • 2 fixed output default states (high/low) or pin-selectable
  • 3 direction configurations
  • Continuously withstands 1500V<sub>RMS</sub> (VIOWM)
  • High CMTI (50kV/μs, typical)
  • 6-pin wide-body SOIC package

 


 

ams

Light-to-digital converter with I2C interface

The TSL2540 is a very high-sensitivity light-to-digital converter that approximates the human eye response to light intensity under varying lighting conditions and transforms this light intensity to a digital signal output capable through a 1.8V I2C interface. The Ambient Light Sensor (ALS) features 2 output channels, a visible channel and an IR channel. The visible channel has a photodiode with a photopic Interferometric UV and IR blocking filter and the IR channel has a photodiode with an IR pass filter. Each channel has a dedicated integrating data converter which converts photodiode current into a 16-bit digital output.

  • Integrated on-chip photopic filter
  • High sensitivity down to mLux levels
  • 1M:1 dynamic range
  • Automatic AUTO zero/dark count control
  • 1.7V to 2.0V supply voltage
  • 0.18μm process technology with 1.8V I2C
  • QFN-10 package
ams TSL2540

 


 

Monolithic Power Systems

75V, 0.3A, high-efficiency, synchronous step-down power module with integrated inductor

The MPM3570E is a high-density, non-isolated DC-DC power module for space-sensitive applications. The module offers a very compact solution to achieve 0.3A output current over a 4.5V to 75V wide input supply range, and can provide an adjustable output voltage from 1.0V to 5.0V via an external FB resistor and a default 3.3V output. The MPM3570E integrates a switching controller, power switches, inductors, a modest amount of input and output capacitors and all support components with an advanced 10 × 10 × 4.2mm size. And it requires a minimal number of standard external components.

  • Integrated inductor, switches, controller
  • Wide 4.5V to 75V operating input range
  • 1.0V to 5.0V adjustable output
  • 0.3A output current
  • 30μA quiescent current
  • CISPR25 Class 5 compliant
  • Ultra-fast transient response
  • Internal fixed soft-start time
  • Power OK indicator
  • Non-latch OCP and UVLO
  • Thermal shutdown protection
  • Remote enable control
MPS MPM3570E

 


 

ON Semiconductor

USB Type-C analog audio switch with protection

The FSA4480 is a high-performance USB Type-C™ port multimedia switch that supports analog audio headsets allowing a common USB Type-C port to pass USB 2.0 signals, analog audio and analog microphone signals. The device, which supports an audio sense path, is a fully integrated and optimized solution that eases design-in and minimizes overall solution footprint. It includes integrated high voltage protection up to 20V DC, and offers pinout support for both OMTP and CTIA - sometimes known as American Headset Jack (AHJ) - smartphone headset standards. There is Over Voltage Protection (OVP) on the common node pins and the unplugging of any audio device is automatically detected.

  • 2.7 V to 5.5 V power supply
  • 3Ω typical USB high-speed RON
  • Audio switch THD+N = -110dB; 1VRMS, f = 20Hz-20kHz, 32Ω Load
  • 20V DC tolerance on connector side pins
  • OMTP and CTIA pinout support
  • 1Ω typical audio RON
  • USB high speed (480Mbps) SDD21 -3dB bandwidth: 950MHz
  • -3V to 3V audio switch negative rail capability
  • Over-voltage protection
  • Supports audio sense path

 


 

Microchip

Dual-mode power monitoring IC

The MCP39F511A power monitoring IC is a highly integrated device that addresses the growing need for more accurate power measurements in high-performance de-signs. To simplify calibration procedures and support most accuracy requirements, two 24-bit delta-sigma Analog-to-Digital Converters (ADCs) with 94.5dB of Signal-to-Noise ratio plus Distortion (SINAD) performance and a 16-bit calculation engine are included. Suitable for a range of consumer, Internet of Things (IoT) and industrial applications, the MCP39F511A automatically senses power-supply types and switches between AC and DC modes, optimizing measurement results. The device also helps developers troubleshoot issues with an on-chip EEPROM that logs critical events, as well as an integrated low-drift voltage reference and internal oscillator to reduce implementation costs.

  • Real-time measurement of input power for AC or DC supplies
  • Automatic sensing and switching between AC and DC modes
  • Dedicated Zero Crossing Detection (ZCD) pin
  • Automatic event pin control through fast voltage surge detection
  • Built-in active, reactive, apparent power calculations
  • Up to 115.2kbps 2-wire UART
  • 512bytes user-accessible EEPROM through page read/write commands
  • Power monitoring accuracy capable of 0.1% error across 4000:1 dynamic range
  • Dedicated PWM output pin
  • Fast calibration routines
  • 28-lead 5 x 5 QFN package

 


 

Melexis-logo-resources.jpg

Gen III Triaxis rotary and linear position sensors

The MLX90371/372 is a family of monolithic magnetic position processor ICs. It consists of a Triaxis® Hall magnetic front end, an analog-to-digital signal conditioner, a DSP for advanced signal processing and an output stage driver. The MLX90371/372 is sensitive to the three components of the magnetic flux density applied to the IC (Bx, By and Bz). This allows the sensors with the correct magnetic circuit to decode the absolute position of any moving magnet such as rotary position from 0 to 360 degrees or linear displacement.

  • Stray field immunity capability
  • Programmable linearization algorithm: arbitrary points (8 points) or piece-wise-linear (32 points)
  • 12-bit angular resolution
  • 10-bit thermal accuracy
  • On-chip diagnostics – ASIL-B (SEooC)
  • -40°C to 160°C ambient temperature range
  • Analog (ratio metric) and PWM selectable output mode
  • Programmable measurement range
  • Dual die (fully redundant) option available
Melexis MLX90371

 


 

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