MAX14693
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MAX14693

High-Accuracy, Adjustable Power Limiter

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Industry's First Dynamic Power Limiter with Thermal Controlled Current Foldback

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Features
  • Robust, High-Power Protection Reduces System Downtime
    • Wide Operating Input Range: +5.5V to +58V
    • -60V Negative Input Tolerance (for -60V External pFET Rating)
    • Low 31mΩ (typ) RON
    • Reverse Current-Blocking Protection with External pFET
  • Enables Fast Startup and Brownout Recovery
    • Thermal Foldback Current-Limit Protection
    • Dual-Stage Current Limiting
      • 1.0x Startup Current (MAX14691)
      • 1.5x Startup Current (MAX14692)
      • 2.0x Startup Current (MAX14693)
  • Flexible Design Enables Reuse and Less Requalification
    • Adjustable OVLO and UVLO Thresholds
    • Programmable Forward Current Limit From 0.6A to 6A with ±15% Accuracy Over Full Temperature Range
    • Normal and High-Voltage Enable Inputs (EN and Active-Low HVEN)
    • Protected External pFET Gate Drive
  • Saves Board Space and Reduces External BOM Count
    • 20-Pin 5mm x 5mm TQFN Package
    • Integrated nFET
Additional Details
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The MAX14691–MAX14693 adjustable overvoltage, undervoltage, and overcurrent protection devices guard systems against overcurrent faults in addition to positive overvoltage and reverse-voltage faults. When used with an optional external pMOSFET, the devices also protect downstream circuitry from voltage faults up to +58V, -60V (for -60V external pFET rating). The devices feature a low, 31mΩ, on-resistance integrated FET.

During startup, the devices are designed to charge large capacitances on the output in a continuous mode for applications where large reservoir capacitors are used on the inputs to downstream devices.

Additionally, the devices feature a dual-stage, current-limit mode in which the current is continuously limited to 1x, 1.5x, and 2x the programmed limit, respectively, for a short time after startup. This enables faster charging of large loads during startup.

The MAX14691–MAX14693 also feature reverse-current and overtemperature protection. The devices are available in a 20-pin (5mm x 5mm) TQFN package and operate over the -40°C to 125°C temperature range.

Applications

  • Control and Automation
  • High-Power Applications
  • Human Machine Interfaces
  • Industrial Power Systems
  • Motion System Drives
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1ku List Price Starting From $3.65
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MAX14693

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Data Sheet

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UPDATED 06/18/2015
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MAX14691-MAX14693: High-Accuracy, Adjustable Power Limiter Data Sheet (Rev.2)

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UPDATED 11/26/2014
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MAX14691-MAX14693_cn: 高精度、可调节功率抑制器 Data Sheet (Rev.1)

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Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX14693ATP+ 20-LFCSP-5X5X0.75 external-link
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MAX14693ATP+T 20-LFCSP-5X5X0.75 external-link
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Apr 23, 2024

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MAX14693ATP+

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May 7, 2015

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Apr 23, 2024

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MAX14693ATP+T

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May 7, 2015

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NOT RECOMMENDED FOR NEW DESIGNS

1A Adjustable Overcurrent and Overvoltage Protector with High Accuracy

Evaluation Kits 1

MAX14691EVKIT

Evaluation Kit for the MAX14691–MAX14693

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MAX14691EVKIT

Evaluation Kit for the MAX14691–MAX14693

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MAX14691EVKIT
Evaluation Kit for the MAX14691–MAX14693

Features and Benefits

  • 5.5V to 58V Operating Voltage Range
  • External pMOSFET Installed
  • Proven PCB Layout
  • Fully Assembled and Tested
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Product Detail

The MAX14691 evaluation kit (EV kit) is a fully assembled and tested circuit board that demonstrates the MAX14691 overvoltage-, undervoltage-, and overcurrent-protection device. The EV kit features an external p-channel MOSFET and LED input and output reading. The EV kit comes with the MAX14691ATP+ installed, but can also be used to evaluate the pin-compatible MAX14692 and MAX14693 devices with IC replacement of U1. Request samples from Maxim when ordering the EV kit.

Applications

  • Control and Automation
  • High-Power Applications
  • Human Machine Interfaces
  • Industrial Power Systems
  • Motion System Drives

Evaluation Kits1

MAX14691EVKIT

Evaluation Kit for the MAX14691–MAX14693

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