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Adjustable Overvoltage Protector with High Accuracy

Superior Input Voltage Protection with Maximum Flexibility

Product Details

Key Features

Applications/Uses

Parametric specs for Overvoltage Protection Controllers
# Channels 1
VIN (V) (min) 2.2
VIN (V) (max) 28
Over Voltage Trip Level (V) 6.76
VGATE (V) 5.75
6.76
tGATE (On) (ms) 0.7
tGATE (Off) (µs) 1.3
Package/Pins TDFN/8
Budgetary
Price (See Notes)
2.52
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Simplified Block Diagram

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Parameters

Parametric specs for Overvoltage Protection Controllers
# Channels 1
VIN (V) (min) 2.2
VIN (V) (max) 28
Over Voltage Trip Level (V) 6.76
VGATE (V) 5.75
6.76
tGATE (On) (ms) 0.7
tGATE (Off) (µs) 1.3
Package/Pins TDFN/8
Budgetary
Price (See Notes)
2.52

Key Features

  • Input Voltage Protection Up to +28V
  • Preset Internal ±2.5% Accurate OVLO Thresholds
    • 5.75V (MAX14527)
    • 6.76V (MAX14528)
  • Adjustable Overvoltage Protection Trip Level
  • Integrated 100mΩ (typ) n-Channel MOSFET Switch
  • Soft-Start to Minimize In-Rush Current
  • Automatic Overvoltage Protection Trip-Level Selection
  • Internal 15ms Startup Delay
  • Thermal Shutdown Protection
  • 8-Pin TDFN (2mm x 2mm) Package
  • -40°C to +85°C Operating Temperature Range

Applications/Uses

  • Cell Phones
  • Media Players
  • PDAs and Palmtop Devices

Description

The MAX14527/MAX14528 overvoltage protection devices feature a low 100mΩ (typ) RON internal FET and protect low-voltage systems against voltage faults up to +28V. 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 8V. With the OVLO input set below the external OVLO select voltage, the MAX14527/MAX14528 automatically choose the internal ±2.5% accurate trip thresholds. The internal overvoltage thresholds (OVLO) are preset to 5.75V typical (MAX14527) or 6.76V typical (MAX14528). The MAX14527/MAX14528 are also protected against overcurrent events with an internal thermal shutdown.

The MAX14527/MAX14528 are offered in a small, 8-pin TDFN-EP package and operate over the -40°C to +85°C extended temperature range.

Simplified Block Diagram

MAX14527, MAX14528: Typical Application Circuit MAX14527, MAX14528: 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 .