Analog Devices Inc. TMC9660 70V Smart Gate Drivers

Analog Devices TMC9660 70V Smart Gate Drivers are highly integrated monolithic gate drivers and motor controller ICs with a buck converter. These devices include a smart gate driver, a high-performance motion controller with hardware-based field-oriented control (FOC) and servo controller (velocity, position, ramp generator), motor position feedback interfaces (A/B/N encoder, hall), an analog signal processing block for bottom shunt current measurement [programmable current-sense amplifiers (CSAs) and analog-to-digital converters (ADCs)]. The Analog Devices TMC9660 components also include a powerful and flexible power management unit (PMU), buck converter, and programmable low-dropout (LDO) regulators.

A preprogrammed 32-bit microcontroller is embedded for overall control and communication with an external processor through SPI or UART. The processor system supports low-level direct register access to all motor control peripherals or higher-level parameter mode access for extended functionality and ease of use. A bootloader is available for the initial configuration of system hardware connections and software selection, supporting permanent storage of this configuration in the one-time programmable (OTP) memory.

Features

  • Three-phase Permanent Magnet Synchronous Motors (PMSM)/Brushless DC (BLDC), two-phase stepper motor, and brushed DC motor support
  • 7.7V to 70V single-supply operating voltage range
  • Smart gate driver with adjustable strength up to 1A/2A source/sink
  • Field-Oriented Controller (FOC) in hardware for wide bandwidth current control loop
  • Position, velocity, and torque controller in hardware for fast and precise control
  • 8-point ramp generator with ramp calculation in real-time in hardware
  • Fast Space Vector Pulse Width Modulation (SVPWM) engine (2kHz to 100kHz) with 120MHz clock
  • Feedback position sensor support (Hall, A/B/N, SPI)
  • Bottom shunt current measurement (programmable CSA and ADCs)
  • 5.8V/600mA buck converter
  • 2x configurable LDOs (2.5V, 3.3V, or 5V) for supply of external circuits with each having 150mA current
  • Charge pump with voltage doubler
  • Trickle charge pump for 100% PWM duty cycle
  • Integrated preprogrammed 32-bit/40MHz microcontroller supporting initial configuration (OTP) of the device and direct hardware/register or parameter mode access
  • SPI and UART interfaces for communication with the main/application controller
  • Parameter storage (optional) in SPI flash memory or I2C EEPROM
  • Internal oscillator with Phase Locked Loop (PLL) and optional external crystal or clock support
  • Watchdog with separate internal oscillator
  • Low-power hibernation mode with wake-up button and timer support
  • Compact monolithic solution, 64-pin, 9mm x 9mm TQFN package
  • RoHS compliant

Applications

  • Robotics
  • Power tools
  • Gardening
  • Automated Guided Vehicles (AGV) and warehouse automation
  • Pumps (e.g., peristaltic)
  • Industrial 3D printing
  • Factory automation
  • Desktop manufacturing
  • E-bikes/light electric vehicles or LEV

Specifications

  • 7.7V to 70V motor supply voltage range
  • 7.7V to 80V core supply voltage range
  • 2.5V to 5V logic input supply voltage range
  • 0mA to 25mA gate driver current range (high- and low-side)
  • 0mA to 150mA external load current range
  • 1.83kHz to 100kHz PWM frequency range
  • 2µA trickle charge pump maximum external load current per pin
  • 2412mW continuous power dissipation
  • -40°C to +125°C operating ambient temperature range
  • +150°C junction temperature
  • Thermal resistance
    • 22.8°C/W junction-to-ambient
    • 0.69°C/W junction-to-case

Simplified Block Diagram

Block Diagram - Analog Devices Inc. TMC9660 70V Smart Gate Drivers
Publié le: 2024-12-10 | Mis à jour le: 2025-01-31