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MAX14655

MAX14655

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

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Overview

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.
MAX14653, MAX14654, MAX14655, MAX1471: Typical Application Circuit MAX14653, MAX14654, MAX14655, MAX1471: Typical Application Circuit Enlarge+

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

See parametric specs for Overvoltage Protection Controllers (74)


Part Number# ChannelsVIN
(V)		VIN
(V)		Over Voltage Trip Level
(V)		Under Voltage Lockout
(V)		Over Volt. FlagtGATE (On)
(ms)		tGATE (Off)
(µs)		Package/PinsBudgetary
Price
(min)(max)(See Notes)
MAX14653 12.528-
2.7
15.5
Open-Drain22
WLP/12
$1.92 @1k
MAX14654 6.8-
WLP/12
MAX14655 5.826-
WLP/12

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Design Resources


MAX14653EVKIT: Evaluation Kits for the MAX14653, MAX14654, and MAX14655
MAX14654EVKIT: Evaluation Kits for the MAX14653, MAX14654, and MAX14655
MAX14655EVKIT: Evaluation Kits for the MAX14653, MAX14654, and MAX14655

Quality And Environmental

Product Reliability Reports: MAX14655.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >

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Reference Designs