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High-Current Overvoltage Protector with Adjustable OVLO

Combination of Ultra-Low On-Resistance and Integrated Surge Protection in a Tiny WLP Package Is Ideal for Portable Applications

Product Details

The MAX14653/MAX14654/MAX14655/MAX14717 overvoltage protection devices feature a low 38mΩ (typ) RON internal FET and protect low-voltage systems against voltage faults up to +28VDC. An internal clamp also protects the devices from surges up to +80V. When the input voltage exceeds the overvoltage threshold, the internal FET is turned off to prevent damage to the protected downstream 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 MAX14653/MAX14654/MAX14655/MAX14717 automatically choose the accurate internal trip thresholds. The internal overvoltage thresholds (OVLO) are preset to 15.5V typical (MAX14653), 6.8V typical (MAX14654/MAX14717), or 5.825V typical (MAX14655). The devices feature an open-drain active-low ACOK output indicating a stable supply between minimum supply voltage and VOVLO. The MAX14653/MAX14654/MAX14655/MAX14717 are also protected against overcurrent events by an internal thermal shutdown.

The MAX14653/MAX14654/MAX14655/MAX14717 are offered in a small 12-bump WLP package and operate over the -40°C to +85°C extended temperature range.

Key Features

  • Protect High-Power Portable Devices
    • Wide Operating Input Voltage Protection from +2.5V to +28V
    • Integrated 38mΩ (typ) n-Channel MOSFET Switch
  • Flexible Overvoltage Protection Design
    • Adjustable Overvoltage-Protection Trip Level
    • Wide Adjustable OVLO Threshold Range from +4V to +20V
    • Preset Internal Accurate OVLO Thresholds:
      • 15.5V ±3.3% (MAX14653)
      • 6.8V ±2.9% (MAX14654/MAX14717)
      • 5.825V ±3% (MAX14655)
  • Additional Protection Features Increase System Reliability
    • Surge Immunity to +80V
    • Soft-Start to Minimize In-Rush Current
    • Internal 15ms Startup Debounce
    • Thermal-Shutdown Protection
  • Minimize PCB Area
    • 12-Bump WLP (1.29mm x 1.83mm) Package
  • -40°C to +85°C Operating Temperature Range

Applications/Uses

  • Mobile Internet Devices
  • Smart Phones
  • Tablet PCs
Parametric specs for Overvoltage Protection Controllers
# Channels 1
VIN (V) (min) 2.5
VIN (V) (max) 28
Over Voltage Trip Level (V) 5.826
Under Voltage Lockout (V) -
Over Volt. Flag Open-Drain
tGATE (On) (ms) 2
tGATE (Off) (µs) 2
Package/Pins WLP/12
Budgetary
Price (See Notes)
$1.92 @1k
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Simplified Block Diagram

MAX14653, MAX14654, MAX14655, MAX1471: Typical Application Circuit MAX14653, MAX14654, MAX14655, MAX1471: Typical Application Circuit Zoom icon

Technical Docs

Design & Development

Click any title below to view the detail page where available.

Description

The MAX14653–MAX14655 evaluation kits (EV kits) are fully assembled and tested circuit boards that demonstrate the functionality of the MAX14653–MAX14655 high-current overvoltage protectors with adjustable OVLO in a 12-bump wafer-level package (WLP). Each EV kit features a jumper for selecting the preset OVLO threshold or the external resistor-divider for the adjustable OVLO threshold. Input power to the EV kits is provided by external supplies.

View Details

Features

  • Proven PCB Layout
  • Fully Assembled and Tested

Description

The MAX14653–MAX14655 evaluation kits (EV kits) are fully assembled and tested circuit boards that demonstrate the functionality of the MAX14653–MAX14655 high-current overvoltage protectors with adjustable OVLO in a 12-bump wafer-level package (WLP). Each EV kit features a jumper for selecting the preset OVLO threshold or the external resistor-divider for the adjustable OVLO threshold. Input power to the EV kits is provided by external supplies.

View Details

Features

  • Proven PCB Layout
  • Fully Assembled and Tested

Description

The MAX14653–MAX14655 evaluation kits (EV kits) are fully assembled and tested circuit boards that demonstrate the functionality of the MAX14653–MAX14655 high-current overvoltage protectors with adjustable OVLO in a 12-bump wafer-level package (WLP). Each EV kit features a jumper for selecting the preset OVLO threshold or the external resistor-divider for the adjustable OVLO threshold. Input power to the EV kits is provided by external supplies.

View Details

Features

  • Proven PCB Layout
  • Fully Assembled and Tested

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Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal

Parameters

Parametric specs for Overvoltage Protection Controllers
# Channels 1
VIN (V) (min) 2.5
VIN (V) (max) 28
Over Voltage Trip Level (V) 5.826
Under Voltage Lockout (V) -
Over Volt. Flag Open-Drain
tGATE (On) (ms) 2
tGATE (Off) (µs) 2
Package/Pins WLP/12
Budgetary
Price (See Notes)
$1.92 @1k

Key Features

  • Protect High-Power Portable Devices
    • Wide Operating Input Voltage Protection from +2.5V to +28V
    • Integrated 38mΩ (typ) n-Channel MOSFET Switch
  • Flexible Overvoltage Protection Design
    • Adjustable Overvoltage-Protection Trip Level
    • Wide Adjustable OVLO Threshold Range from +4V to +20V
    • Preset Internal Accurate OVLO Thresholds:
      • 15.5V ±3.3% (MAX14653)
      • 6.8V ±2.9% (MAX14654/MAX14717)
      • 5.825V ±3% (MAX14655)
  • Additional Protection Features Increase System Reliability
    • Surge Immunity to +80V
    • Soft-Start to Minimize In-Rush Current
    • Internal 15ms Startup Debounce
    • Thermal-Shutdown Protection
  • Minimize PCB Area
    • 12-Bump WLP (1.29mm x 1.83mm) Package
  • -40°C to +85°C Operating Temperature Range

Applications/Uses

  • Mobile Internet Devices
  • Smart Phones
  • Tablet PCs

Description

The MAX14653/MAX14654/MAX14655/MAX14717 overvoltage protection devices feature a low 38mΩ (typ) RON internal FET and protect low-voltage systems against voltage faults up to +28VDC. An internal clamp also protects the devices from surges up to +80V. When the input voltage exceeds the overvoltage threshold, the internal FET is turned off to prevent damage to the protected downstream 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 MAX14653/MAX14654/MAX14655/MAX14717 automatically choose the accurate internal trip thresholds. The internal overvoltage thresholds (OVLO) are preset to 15.5V typical (MAX14653), 6.8V typical (MAX14654/MAX14717), or 5.825V typical (MAX14655). The devices feature an open-drain active-low ACOK output indicating a stable supply between minimum supply voltage and VOVLO. The MAX14653/MAX14654/MAX14655/MAX14717 are also protected against overcurrent events by an internal thermal shutdown.

The MAX14653/MAX14654/MAX14655/MAX14717 are offered in a small 12-bump WLP package and operate over the -40°C to +85°C extended temperature range.

Simplified Block Diagram

MAX14653, MAX14654, MAX14655, MAX1471: Typical Application Circuit MAX14653, MAX14654, MAX14655, MAX1471: Typical Application Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal