MAX9937

PRODUCTION

Automotive Current-Sense Amplifier with Reverse-Battery Protection

Current-Sense Amplifier with Reverse-Battery and Load-Dump Protection from -20V to +40V

Data Sheet (Rev. 1) Product Selection Table
Part Models
2
1ku List Price
Starting From $1.33
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Part Details

  • Reverse Battery and Load-Dump Protection
    • -20V to +40V
  • +4V to +28V Input Common-Mode Range
  • Flexible EMI Filtering
  • Low VOS: ±1.2mV (max)
  • Low VOS Drift : 1µV/°C (typ)
  • 20µA Supply Current
  • 350kHz, 3dB Small-Signal Bandwidth
MAX9937
Automotive Current-Sense Amplifier with Reverse-Battery Protection
MAX9937: Typical Operating Circuit
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Documentation

Data Sheet 1

Reliability Data 1

Design Note 1

Technical Articles 2

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Hardware Ecosystem

Parts Product Life Cycle Description
Current Sense Amplifiers 2
MAX4372
RECOMMENDED FOR NEW DESIGNS Low-Cost, UCSP/SOT23, Micropower, High-Side Current-Sense Amplifier with Voltage Output
MAX4073
PRODUCTION Low-Cost, SC70, Voltage-Output, High-Side Current-Sense Amplifier
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Evaluation Kits

MAX9937EVKIT

Evaluation Kit for the MAX9937

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Features and Benefits

  • Reverse-Battery and Load-Dump Protection
    • -20V to +40V
  • +4V to +28V Input Common-Mode Range
  • +2.7V to +5.5V Supply Range
  • Flexible EMI Filtering
  • Lead(Pb)-Free and RoHS Compliant
  • Fully Assembled and Tested

Product Details

The MAX9937 evaluation kit (EV kit) is an assembled and tested PCB used to evaluate the MAX9937 current-sense amplifier, designed for unidirectional high-side current-sense applications. The EV kit can be used to demonstrate the applicability of the MAX9937 to withstand transients, such as load-dump protection, reverse-battery protection, and filtering for EMI.

Applications

  • Automotive Battery Current Sense
  • ECU Current Monitor
  • Fuse Box Current Sense
MAX9937EVKIT
Evaluation Kit for the MAX9937

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