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Analog Devices / Maxim Integrated MAX22215 Motor Brake Drivers

Analog Devices / Maxim Integrated MAX22215 Motor Brake Drivers combines 36V half-bridge drivers, a 65V low-side brake-release MOSFET, and a high-accuracy Current-Sense Amplifier (CSA). These drivers feature an integrated 55V high-power demagnetization clamp that provides rapid coil demagnetization and eliminates the need for external transient suppression devices. The half-bridge FETs and brake-release NFET feature extremely low RDSON (50mΩ, typical). The MAX22215 can be controlled either through a 1MHz I2C serial interface or via CMOS logic input pins. These drivers are ideal for industrial motor brake release, robotics motor brake release, and solenoid drive.

The MAX22215 drivers integrate non-dissipative Overcurrent Protection (OCP), Undervoltage Lockout (UVLO), thermal warning and shutdown, and a brake-voltage-monitor analog output pin (ODM). These drivers are support four operating modes: SLEEP, DIAGNOSTIC, RELEASE, and BRAKE. The MAX22215 drivers are available in a compact 5mm x 7mm, 38-pin TQFN package.

Features

  • One half-bridge driver operating up to 36V (RON ~50mΩ)
  • One LS FET operating up to 65V (RON ~50mΩ)
  • Embedded demagnetization circuitry:
    • 55V high-power clamp
    • Thermal control loop for safe operations at high demagnetization energy (SafeDemag function)
  • 1MHz I2C serial interface for configuration and diagnostics
  • Configurable half-bridge slew-rate control through I2C
  • Embedded dead-time circuit to avoid crossbar conduction
  • 5V internal regulator
  • Current-Sense Amplifier (CSA):
    • Low offset for high accuracy
    • Programmable voltage gain
  • Protections and diagnostics:
    • Overcurrent Protection (OCP)
    • Three Undervoltage Lockouts (UVLO_)
    • Thermal Warning/Shutdown (TWARN/TSD)
    • Demagnetization Voltage Analog Output Pin (ODM)
    • Diagnostic mode for load connection check
    • Internal Monitoring of system parameters
    • Fault indicator pin (nFAULT)

Applications

  • Industrial motor brake release
  • Robotics motor brake release
  • Solenoid drive

Block Diagram

Block Diagram - Analog Devices / Maxim Integrated MAX22215 Motor Brake Drivers

Application Diagram

Application Circuit Diagram - Analog Devices / Maxim Integrated MAX22215 Motor Brake Drivers

Associated Board

Analog Devices / Maxim Integrated MAX22215 Evaluation Board

Designed to evaluate the MAX22215 driver in combination with the TRINAMIC evaluation board system.

Learn Moreabout Analog Devices / Maxim Integrated MAX22215 Evaluation Board View Productsrelated to Analog Devices / Maxim Integrated MAX22215 Evaluation Board
Published: 2026-07-31 | Updated: 2026-08-13