MAX14673
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MAX14673

Bidirectional Current-Blocking, High-Input Overvoltage Protectors with Adjustable OVLO

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OVP Enables Multiple, Faster Charging Power Sources with High Voltage

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Features
  • Protect High-Power Portable Devices
    • Wide Operating Input Voltage Protection from +3V to +28V
    • +100V Surge Capability
    • 4.5A Continuous Current Capability (WLP Package)
    • Integrated 65mΩ (typ) n-Channel MOSFET Switch (WLP Package)
  • Flexible Overvoltage Protection Design
    • Wide +5V to +22V Adjustable OVLO Threshold Range
    • Active-Low ACOK and ACOK Indicate Input is in Range
    • OTG Enable Allows OUT to Supply IN
    • Preset Accurate Internal OVLO Thresholds:
      • 6.8V ±3% (MAX14670)
      • 15.5V ±3% (MAX14671)
      • 5.825V ±3% (MAX14672)
      • 22V ±3% (MAX14673)
  • Additional Protection Features Increase System Reliability
    • OUT-IN Reverse Bias Blocking Capability
    • Soft-Start to Minimize Inrush Current
    • Internal 15ms Startup Debounce
    • Thermal Shutdown Protection
  • Space Saving
    • 15-Bump, 1.6mm x 2.1mm, WLP Package
    • 10-Pin, 3mm x 3mm, TDFN Package
Additional Details
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The MAX14670–MAX14673 provide protection to valuable consumer circuits against positive voltage faults up to +28VDC. An internal clamp also protects the devices from surges up to +100V. The device is able to disconnect the system from its output terminal when wrong input conditions are detected.
The MAX14670–MAX14673 overvoltage protection devices feature low 65mΩ (typ), WLP package on-resistance (RON) internal FETs, effectively minimizing the voltage drop across the device. When the input voltage exceeds the overvoltage threshold, the internal FET is turned off to prevent damage to the protected components.
The overvoltage protection threshold can be adjusted with optional external resistors to any voltage between 5V and 22V. The devices automatically choose the accurate internal trip thresholds when the overvoltage lockout input (OVLO) is set lower than the external OVLO select voltage. The internal OVLO are preset to typical 6.8V (MAX14670), 15.5V (MAX14671), 5.825V (MAX14672), or 22V (MAX14673).
The MAX14670–MAX14673 feature reverse bias blocking capability. Unlike other overvoltage protectors, when the MAX14670–MAX14673 are disabled, the voltage applied to OUT does not feed back into IN. These devices also feature an OTG enable pin that allows OUT voltage to supply IN. The MAX14670–MAX14673 also have thermal shutdown protection against over load conditions.
The MAX14670–MAX14673 are specified over the extended -40°C to +85°C temperature range. The MAX14670/MAX14671 are available in a 15-bump WLP package and the MAX14672/MAX14673 are available in a 10-pin TDFN package.

Applications

  • Charging USB Hosts
  • e-Readers
  • PC Notebooks
  • Smart Phones
  • Tablets
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MAX14673

Documentation

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Data Sheet

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UPDATED 10/05/2016
English

MAX14670-MAX14673: Bidirectional Current-Blocking, High-Input Overvoltage Protectors with Adjustable OVLO Data Sheet (Rev.5)

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UPDATED 04/25/2017
Japanese

MAX14670-MAX14673_jp: 双方向電流ブロッキング、高入力過電圧プロテクタ、可変OVLD内蔵 Data Sheet (Rev.5)

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Software & Part Ecosystem

Evaluation Kits 1

MAX14670EVKIT

Evaluation Kit for the MAX14670 and MAX14671

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MAX14670EVKIT

Evaluation Kit for the MAX14670 and MAX14671

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MAX14670EVKIT
Evaluation Kit for the MAX14670 and MAX14671

Features and Benefits

  • 3V to 28V Operating Voltage Range
  • Evaluates Bidirectional OVLO and Adjustable OVLO
  • Proven PCB Layout
  • Fully Assembled and Tested
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Product Detail

The MAX14670 evaluation kit (EV kit) is a fully assembled and tested circuit board that demonstrates the MAX14670 and MAX14671 bidirectional current-blocking, high-input overvoltage protectors with adjustable OVLO. The EV kit features LED output reading and a USB-powered option for logic pins.

Applications

  • Charging USB Hosts
  • e-Readers
  • PC Notebooks
  • Smart Phones
  • Tablets

Evaluation Kits1

MAX14670EVKIT

Evaluation Kit for the MAX14670 and MAX14671

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