MAX14528:Adjustable Overvoltage Protector with High Accuracy

Superior Input Voltage Protection with Maximum Flexibility

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.

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
MAX14527, MAX14528: Typical Application Circuit
MAX14527, MAX14528: Typical Application Circuit
Applications/Uses
  • Cell Phones
  • Media Players
  • PDAs and Palmtop Devices
DataSheet
titleDownload file
MAX14527-MAX14528 Data SheetMAX14527-MAX14528.pdf
Parametrics
Part NumberChannelsVIN
(V)
VIN
(V)
Over Voltage Trip Level
(V)
VGATE
(V)
tGATE (On)
(ms)
tGATE (Off)
(µs)
Package/PinsBudgetary
Price
minmaxSee Notes
MAX1452712.2285.755.750.71.3TDFN-EP/8$2.40 @1k
MAX145286.765.75
6.76
TDFN-EP/8
Quality and Environmental Data
Related Products
  • MAX4846:Overvoltage Protection Controllers with Low Standby Current
  • MAX4844:Overvoltage Protection Controllers with Low Standby Current
  • MAX4845:Overvoltage Protection Controllers with Low Standby Current
  • MAX4843:Overvoltage Protection Controllers with Low Standby Current
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX14528ETA+ActiveTDFN-EP,;8 pin;4.2 mm²-40°C to +85°CLead Free
MAX14528ETA+TActiveTDFN-EP,;8 pin;4.2 mm²-40°C to +85°CLead Free
MAX14528EVKIT+No Longer AvailableEVKIT;-40°C to +85°CSee data sheet
MAX14527-MAX14528.pdf MAX14528
MAX14527-MAX14528_cn.pdf MAX14528
MAX14528.pdf MAX14528
MAX14527-MAX14528_cn.pdf MAX14527