MAX40056T

PRODUCTION

Bidirectional Current Sense Amplifier with PWM-Rejection

Enabling Dramatic Size and Performance Improvement for In-Phase Measurement in DC Servo Drives

Data Sheet (Rev. 8)
Product Selection Table
Part Models
2
1ku List Price
Starting From $1.49
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Part Details

  • AEC-Q100
  • Fast, 500ns PWM Edge recovery from 500V/µs PWM Edges
  • 60dB AC CMRR Rejection at 50V, ±500V/µs PWM Edges
  • 140dB DC CMRR Rejection
  • -0.1V to +65V Input Voltage Range
  • -5V to +70V Protective Immunity
  • 300kHz, -3dB Bandwidth
  • Multiple Gain Options; 10V/V, 20V/V, 50V/V
  • Internal, 1% Reference for Bidirectional Offset
  • 5µV (Typ) Input Offset Voltage
  • Rail-to-Rail Output
  • 2.02mm x 1.4mm, 8-bump WLP and 8-pin µMAX
  • -40°C to +125°C Temperature Range
MAX40056T
Bidirectional Current Sense Amplifier with PWM-Rejection
MAX40056F, MAX40056T, MAX40056U: Simplified Block Diagram
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Documentation

Data Sheet 1

Technical Articles 1

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Hardware Ecosystem

Parts Product Life Cycle Description
Current Sense Amplifiers 1
MAX9918
PRODUCTION -20V to +75V Input Range, Precision Uni-/Bidirectional, Current-Sense Amplifiers
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Evaluation Kits

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schematic 1
MAX40056EVKIT

Evaluation Kit for the MAX40056F, MAX40056T, MAX40056U

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Features and Benefits

  • Precision Real-Time Current-Monitoring with Fault Detection
  • Internal Available1.5V Reference
  • -0.3V to +65V Input Common Mode Range
  • -40°C to +125°C Temperature Range
  • Evaluates 8-µMAX MAX40056FAUA+ Device
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX40056 evaluation kit (EV kit) is a fully assembled electrical demonstration kit that provides a proven design to evaluate the MAX40056F/MAX40056T/MAX40056U high-precision, high-voltage, bidirectional current sense amplifier for PWM applications, such as servo motor control and solenoid drive. The MAX40056F/MAX40056T/ MAX40056U are ideal for 48V, or less BLDC, induction motor applications (such as robotics), pick-and-place machines, 3D prints, or other servo motor control systems.

This EV kit demonstrates the MAX40056FAUA+ in an 8-pin µMAX package, with Gain = 50V/V. For other available pin-compatible options (MAX40056TAUA+, Gain = 20V/V, MAX40056HAUA+, Gain = 10V/V), contact the factory.

Applications

  • Battery Stack Monitors
  • Current Monitoring of Inductive Loads
  • PWM H-Bridge Motor In-line/In-phase/ Winding Current Sensing
  • Solenoid Current Sensing
MAX40056EVKIT
Evaluation Kit for the MAX40056F, MAX40056T, MAX40056U
MAX40056EVKIT: Photo Board

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