MAX14739
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MAX14739

High-Current Overvoltage Protectors with Adjustable OVLO

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High-Current OVP for Mid-to-Low-Tier Portable Devices

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Part Details
Features
  • Protects High-Power Portable Devices
    • Wide Operating Input-Voltage Protection from +2.2V to +36V
    • 3A Continuous-Current Capability
    • Integrated 76mΩ (typ) nMOSFET Switch
  • Flexible Overvoltage Protection Design
    • Adjustable Overvoltage Protection Trip Level
    • Wide Adjustable OVLO Threshold Range from +4V to +20V
      • Preset Internal Accurate OVLO Thresholds: 6.8V±2.9% (MAX14738), 10V±3.0% (MAX14739)
  • Additional Protection Features Increase System Reliability
    • Soft-Start to Minimize In-Rush Current
    • Internal 18ms Startup Debounce
    • Thermal-Shutdown Protection
  • Minimize PCB Area
    • 6-Bump WLP (1.3mm x 0.9mm)
Additional Details
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The MAX14738/MAX14739 overvoltage protection devices feature a low 76mΩ (typ) on-resistance (RON) internal FET and protect low-voltage systems against voltage faults up to +36V. 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 4V and 20V. With the OVLO input set below the external OVLO select voltage, the devices automatically choose the accurate internal trip thresholds. The internal overvoltage thresholds (OVLO) are preset to 6.8V (typ) (MAX14738) or 10V (typ) (MAX14739). The devices are also protected against overcurrent events by an internal thermal shutdown.

The MAX14738/MAX14739 are offered in a small, 6-bump 1.3mm x 0.9mm wafer-level package (WLP) with an exposed pad and operate over the -40°C to +85°C extended temperature range.

Applications

  • Mobile Internet Devices
  • Smartphones
  • Tablet PCs
Complete documentation is available upon completion of a Non-Disclosure Agreement (NDA). To request an NDA, click here.

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Documentation

Documentation

Software and Part Ecosystem

Software and Part Ecosystem

Evaluation Kit

Evaluation Kits 2

MAX14739EVKIT

Evaluation Kit for the MAX14738 and MAX14739

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MAX14739EVKIT

Evaluation Kit for the MAX14738 and MAX14739

Evaluation Kit for the MAX14738 and MAX14739

Features and Benefits

  • Evaluates Overvoltage Protection
  • Allows User-Setting of OVLO Voltage
    • Jump to Ground to Use Internal Setting
    • 1MΩ Resistor and 500kΩ Potentiometer Resistive-Divider Allows Variable OVLO Voltage
  • Test Points at Every Voltage Pin for Easy Measurements
  • Fully Assembled and Tested

Product Detail

The MAX14738/MAX14739 evaluation kit (EV kit) is a fully assembled and tested circuit board that demonstrates the functionality of the MAX14738/MAX14739 overvoltage protection (OVP) devices.

Applications

  • Mobile Internet Devices
  • Smartphones
  • Tablet PCs

MAX14738EVKIT

Evaluation Kit for the MAX14738 and MAX14739

zoom

MAX14738EVKIT

Evaluation Kit for the MAX14738 and MAX14739

Evaluation Kit for the MAX14738 and MAX14739

Features and Benefits

  • Evaluates Overvoltage Protection
  • Allows User-Setting of OVLO Voltage
    • Jump to Ground to Use Internal Setting
    • 1MΩ Resistor and 500kΩ Potentiometer Resistive-Divider Allows Variable OVLO Voltage
  • Test Points at Every Voltage Pin for Easy Measurements
  • Fully Assembled and Tested

Product Detail

The MAX14738/MAX14739 evaluation kit (EV kit) is a fully assembled and tested circuit board that demonstrates the functionality of the MAX14738/MAX14739 overvoltage protection (OVP) devices.

Applications

  • Mobile Internet Devices
  • Smartphones
  • Tablet PCs

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