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MAX16914 - Overvoltage Protection Switch/Limiter Controllers

General Description

The MAX16914/MAX16915 low-quiescent-current overvoltage and reverse-battery protection controllers are designed for automotive and industrial systems that must tolerate high-voltage transient and fault conditions.

These conditions include load dumps, voltage dips, and reversed input voltages.

Key Features

  • S 4.5V to 19V Input Voltage Operation S Transient Voltage Protection Up to +44V and -75V S Adjustable Overvoltage Limit with ResistorDivider Shut Off in Shutdown S Ideal Diode Reverse-Battery Protection S Low Voltage Drop When Used with Properly Sized External pFETs S Back-Charge Prevention S Overvoltage Indicator S Shutdown Input S 29µA Low Operating Current S 6µA Low Shutdown Current S Thermal-Overload Protection S -40NC to +125NC Operating Temperature Range S Small 10-Pin µMAX Pa.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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19-4964; Rev 0; 9/09 Ideal Diode, Reverse-Battery, and Overvoltage Protection Switch/Limiter Controllers with External MOSFETs General Description The MAX16914/MAX16915 low-quiescent-current overvoltage and reverse-battery protection controllers are designed for automotive and industrial systems that must tolerate high-voltage transient and fault conditions. These conditions include load dumps, voltage dips, and reversed input voltages. The controllers monitor the input voltage on the supply line and control two external pFETs to isolate the load from the fault condition. The external pFETs are turned on when the input supply exceeds 4.5V and stay on up to the programmed overvoltage threshold.