MAX14699

High-Accuracy, Surge-Protected Overvoltage Protectors

Fast Response, Tighter Accuracy, Low RON and Integrated Surge Protection in a WLP Package


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Description

The MAX14699 overvoltage protection (OVP) device features a low 38mΩ (typ) on-resistance (RON) internal FET and protects low-voltage systems against voltage faults up to +28VDC. An internal clamp also protects the device from surges up to +100V. The MAX14699 features a 100ns (typ) overvoltage response time to minimize voltage rise on OUT during an overvoltage event. When the input voltage exceeds the overvoltage threshold, the internal FET is quickly 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 MAX14699 automatically selects the accurate internal trip threshold. The internal over voltage threshold (OVLO) is preset to 13.75V (typ). The device features an open-drain active-low ACOK output, indicating a stable supply between minimum supply voltage and VOVLO. The MAX14699 is protected against overcurrent events by an internal thermal shutdown.

The MAX14699 is offered in a small, 12-bump WLP package and operates over the -40°C to +85°C extended temperature range.
MAX14699: Functional Diagram MAX14699: Functional Diagram Enlarge+

Key Features

  • Protects High-Power Portable Devices
    • Wide Operating Input Voltage Protection from +2.1V to +28V
    • 4.5A Continuous Current Capability
    • Integrated 38mΩ (typ) n-Channel MOSFET Switch
    • Fast 100ns (typ) Response Time
  • Flexible Design
    • Adjustable Overvoltage-Protection Trip Level
    • Wide Adjustable OVLO Threshold Range from +4V to +20V
    • Preset Internal Accurate OVLO Threshold: 13.75V
    • Microphone Mode for Microphone Signals on IN
  • Additional Protection Features Increase System Reliability
    • Surge Immunity to +100V
    • Soft-Start to Minimize In-Rush Current
    • Internal 21ms Startup Debounce
    • Thermal-Shutdown Protection
  • Minimize PCB Area
    • 12-Bump WLP (1.3mm x 2mm) Package
  • -40°C to +85°C Operating Temperature Range

Applications/Uses

  • Portable Media Players
  • Smartphones
  • Tablet PCs

See parametric specs for Overvoltage Protection Controllers (74)


Part NumberChannelsVIN
(V)
VIN
(V)
Over Voltage Trip Level
(V)
Over Volt. FlagtGATE (On)
(ms)
tGATE (Off)
(µs)
Package/PinsBudgetary
Price
minmaxSee Notes
MAX14699 12.52813.75Open-Drain22
THIN WLP/12
WLP/12
$1.31 @1k

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.

MAX14699EVKIT: Evaluation Kit for the MAX14699
Request Reliability Report for: MAX14699 
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.

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