Features and Benefits

  • Robust Protection Reduces System Downtime
    • Wide Input Supply Range: +4.25V to +60V
    • Hot Plug-In Tolerant without TVS up to 35V Input Supply
    • Negative Input Tolerance to -65V
    • Negative Output Tolerance to -(65 - VIN)V
    • Low RON 1.42Ω (typ)
    • Reverse Current-Blocking Protection
    • Thermal Overload Protection
    • Extended -40°C to +125°C Temperature Range
  • Reduced Solution Footprint
    • 10-Pin, 3mm x 3mm, TDFN Package
    • Integrated FETs
  • Flexible Design to Maximize Reuse and Minimize Requalification
    • Adjustable OVLO and UVLO Thresholds
    • Programmable Forward-Current Limit: 10mA to 20mA with ±6% Accuracy and 20mA to 250mA with ±5% Accuracy Over Full Temperature Range
    • Programmable Overcurrent Fault Response: Autoretry, Latch-Off, and Continuous Modes
    • Smooth Current-Transitions

Product Details

The MAX17615 overvoltage and overcurrent-protection device offers adjustable protection boundaries for systems against positive and negative input faults up to +60V and -65V, and output load current up to 250mA. The device features two internal MOSFETs connected in series with a low cumulative RON of 1.42Ω (typ).The device blocks out negative input voltages completely. The device withstands accidental reverse polarity output voltage connection, with magnitudes up to –(65 - VIN)V. Input undervoltage protection can be programmed between 4.25V and 59V, while the overvoltage protection can be independently programmed between 5.5V and 60V. Additionally, the device has an internal undervoltage lockout falling threshold set at 4V (typ).

The device is enabled or disabled through the EN pin by a master supervisory system. This in turn offers a switch operation to turn on or turn off power delivery to connected loads.

The current through the device is limited by setting a current limit, which is programmed by a resistor connected from SETI to GND. The current limit can be programmed between 10mA to 250mA. When the device current reaches or exceeds the set current limit, the on-resistance of the internal FETs are modulated to limit the current to set limit. The device offers three different behavioral modes when under current limited operations: Auto retry, Continuous, and Latch Off modes. The SETI pin also presents a voltage with reference to GND, which under normal operation is proportional to the device current. The voltage appearing on the SETI pin might be read by an ADC in a monitoring system for recording instantaneous device current.

The MAX17615 offers FLAG and UVOV communication signals to indicate different operational and fault signals. The communication signal pins are open drain in nature and require external pullup resistors to appropriate system interface voltage.

MAX17615 blocks reverse current flow (from OUT to IN). The device offers internal thermal shutdown protection against excessive power dissipation


  • Small Total Solution Size (Sensor Systems)
  • Tight Current Limit Accuracy (Condition Monitoring, Battery Operated Modules)
  • Output Reverse Polarity Protection (Process Instrumentation, PLC, Network Modules)

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This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.