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BQ25700ARSNT

Texas Instruments

The bq25700A is a synchronous NVDC battery buck-boost charge controller, offering low component count, high efficiency solution for space-constraint, multi-chemistry battery charging applications.

The NVDC-1 configuration allows the system to be regulated at battery voltage, but not drop below system minimum voltage. The system keeps operating even when the battery is completely discharged or removed. When load power exceeds input source rating, the battery goes into supplement mode and prevents the input source from being overloaded.

The bq25700A charges battery from a wide range of input sources including USB adapter, high voltage USB PD sources and traditional adapters.

During power up, the charger sets converter to buck, boost or buck-boost configuration based on input source and battery conditions. The charger automatically transits among buck, boost and buck-boost configuration without host control.

In the absence of an input source, the bq25700A supports On-the-Go (OTG) function from 1- to 4-cell battery to generate 4.48 V to 20.8 V on VBUS. During OTG mode, the charger regulates output voltage and output current.

The bq25700A monitors adapter current, battery current and system power. The flexibly programmed PROCHOT output goes directly to CPU for throttle back when needed.

Features:

  • Charge 1- to 4-Cell Battery From Wide Range of Input Sources
    • 3.5-V to 24-V Input Operating Voltage
    • Supports USB2.0, USB 3.0, USB 3.1 (Type C), and USB_PD Input Current Settings
    • Seamless Transition Between Buck and Boost Operation
    • Input Current and Voltage Regulation (IDPM and VDPM) Against Source Overload
  • Power/Current Monitor for CPU Throttling
    • Comprehensive PROCHOT Profile, IMVP8 Compliant
    • Input and Battery Current Monitor
    • System Power Monitor, IMVP8 Compliant
  • Narrow-VDC (NVDC) Power Path Management
    • Instant-On With No Battery or Deeply Discharged Battery
    • Battery Supplements System When Adapter is Fully-Loaded
    • Ideal Diode Operation in Supplement Mode
  • Power Up USB Port From Battery (USB OTG)
    • Output 4.48-V to 20.8-V Compatible With USB PD
    • Output Current Limit up to 6.35 A
  • 800-kHz or 1.2-MHz Programmable Switching Frequency for 1-µH to 2.2-µH Low Profile Inductor
  • Host Control Interface for Flexible System Configuration
    • SMBus (bq25700A) Port for Optimal System Performance and Status Reporting
    • Hardware Pin to Set Input Current Limit Without EC Control
  • High Accuracy Regulation and Monitor
    • ±0.5% Charge Voltage Regulation
    • ±2% Input/Charge Current Regulation
    • ±2% Input/Charge Current Monitor
    • ±5% Power Monitor
  • Safety
    • Thermal Shutdown
    • Input, System, Battery Overvoltage Protection
    • MOSFET Inductor Overcurrent Protection
  • Low Battery Quiescent Current
  • Input Current Optimizer (ICO) to Extract Max Input Power
  • Charge Any Battery Chemistry: Li+, LiFePO4, NiCd, NiMH, Lead Acid
  • Package: 32-Pin 4 × 4 WQFN

$0.00 - $6.08

IN STOCK 720
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NanoPi-NEO2

NanoPi

Smaller than an Oreo, Faster than a Raspberry Pi

The NanoPI-NEO2 is a newly released super tiny ARM board by Friendly Elec. It uses Allwinner's 64-bit H5 quad-core SoC (ARM Cortex-A53). It has internal hexa-core Mail450 GPU, 512M DDR3 RAM. A Ubuntu Core and Armbian image files are ready for it.

The NanoPi NEO2 inherits NEO's form factor and has compatible interfaces and ports with NEO. In addition in such a small dimension it has Gbps Ethernet and one USB host port. These features make it especially suitable for applications that require high data throughput, speedy data transmission and high performance. Hobbyists and makers will just love it.

Features:

  • CPU: Allwinner H5, Quad-core 64-bit high-performance Cortex A53
  • DDR3 RAM: 512MB
  • Connectivity: 10/100/1000M Ethernet, RTL8211E-VB-CG chip
  • USB Host: USB Type A x 1 and USB pin header x 2
  • MicroSD Slot: MicroSD x 1 for system boot and storage
  • LED: Power LED x 1, System LED(Blue) x 1
  • GPIO1: 2.54mm pitch 24 pin-header, compatible with Raspberry Pi's GPIO pin1 - pin 24. It includes UART, SPI, I2C, IO etc.
  • GPIO2: 2.54mm pitch 12 pin-header. It includes USB, IR receiver, I2S, IO etc.
  • Serial Debug Port: 2.54mm pitch 4pinheader
  • Audio In/Out: 2.0mm pitch 5 pin-header
  • MicroUSB: Power input(5V/2A) and OTG
  • PCB Dimension: 40 x 40mm
  • Working Temperature: -30℃ to 70℃
  • Weight: 13g(WITHOUT Pin-headers)
  • OS/Software: u-boot,Ubuntu Core

[no prices available]

DRV8320RSRHAR

Texas Instruments

The DRV832x family of devices are integrated gate drivers for three-phase applications. The devices provides three half-bridge gate drivers, each capable of driving high-side and low-side N-channel power MOSFETs. The DRV832x generates the proper gate drive voltages using an integrated charge pump for the high-side MOSFETs and a linear regulator for the low-side MOSFETs. The smart gate drive architecture supports up to 1-A source and 2-A sink peak gate drive current capability. The DRV832x can operate from a single power supply and supports a wide input supply range of 6 to 60-V for the gate driver and 4 to 60-V for the optional buck regulator.

The 6x, 3x, 1x, and independent input PWM modes allow for simple interfacing to controller circuits. Gate drive and device configuration settings are highly configurable through a SPI or hardware (H/W) interface. The DRV8323 and DRV8323R devices have three, integrated low-side shunt amplifiers that allow bidirectional current sensing on all three phases of the drive stage. The DRV8320R and DRV8323R devices integrate a 600-mA buck regulator.

A low-power sleep mode is provided to achieve low quiescent current draw by shutting down most of the internal circuitry. Internal protection functions are provided for undervoltage lockout, charge pump fault, MOSFET overcurrent, MOSFET short circuit, gate driver fault, and overtemperature. Fault conditions are indicated on the nFAULT pin with details through the device registers for SPI device variants.

Features:

  • Triple Half-Bridge Gate Driver
    • Drives High-Side and Low-Side
      N-Channel MOSFETs
    • Supports 100% PWM Duty Cycle
  • Smart Gate Drive Architecture
    • Adjustable Slew Rate Control
    • 10-mA to 1-A Peak Source Current
    • 20-mA to 2-A Peak Sink Current
  • Integrated Gate Driver Power Supplies
    • High-Side Charge Pump
    • Low-Side Linear Regulator
  • 6 to 60-V Operating Voltage Range
  • Optional Integrated Buck Regulator
    • LMR16006X SIMPLE SWITCHER®
    • 4 to 60-V Operating Voltage Range
    • 0.8 to 60-V, 600-mA Output Capability
  • Optional Integrated Triple Current
    Shunt Amplifiers
    • Adjustable Gain (5, 10, 20, 40 V/V)
    • Bidirectional or Unidirectional Support
  • Selectable SPI or Hardware Interface
  • 6x, 3x, 1x, and Independent PWM Modes
  • Supports 1.8-V, 3.3-V, and 5-V Logic Inputs
  • Low-Power Sleep Mode (20-µA)
  • Linear Voltage Regulator, 3.3 V, 30 mA
  • Compact QFN Packages and Footprints
  • Efficient System Design With CSD88599Q5DC
  • Integrated Protection Features
    • VM Undervoltage Lockout (UVLO)
    • Charge Pump Undervoltage (CPUV)
    • MOSFET Overcurrent Protection (OCP)
    • Gate Driver Fault (GDF)
    • Thermal Warning and Shutdown (OTW/OTSD)
    • Fault Condition Indicator (nFAULT)

$2.43 - $4.85

IN STOCK 4479
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