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特性
- Voltage Range 4.5V to 36V DC
- Low RDS(ON) (HS + LS): 230mΩ Typical (TA = 25°C)
- Current Ratings per H-Bridge (Typical at 25°C):
- IMAX = 5.0A (Bridge Peak Current)
- IRMS = 2.1ARMS (3A Sine Wave Peak)
- Fully Integrated Lossless Current Sensing
- Step/Direction (S/D) Interface with MicroPlyer™ Step Interpolation
- SPI and Single Wire UART
- Incremental Encoder Interface
- Highest Resolution 256 Microsteps per Full Step
- Flexible Wave Table and Phase Shift to Match Motor
- StealthChop2™ Silent Motor Operation
- SpreadCycle™ Highly Dynamic Motor Control Chopper
- Jerk-Free Combination of StealthChop2™ and SpreadCycle™
- StallGuard2™ and StallGuard4™ Sensorless Motor Load Detection
- CoolStep™ Current Control for Energy Savings up to 75%
- Passive Braking and Freewheeling Mode
- Motor Phase and Chip Temperature Measurement
- General-Purpose Analog Input
- Full Protection and Diagnostics
- Overvoltage Protection Output
- Compact 5mm x 5mm TQFN32 package or 9.7mm × 4.4mm TSSOP38
产品详情和应用
The TMC2240 is a smart high-performance stepper motor driver IC with serial communication interfaces (SPI, UART) and extensive diagnosis capabilities. It combines industries’ most advanced stepper motor driver based on the 256-usteps built-in indexer and two fully integrated 36V, 3.0A (max) H-Bridges plus non-dissipative Integrated Current Sensing (ICS).
TMC2240 features abundant diagnostics and protections such as short protection / OCP, thermal shutdown, under voltage lockout. During thermal shutdown and under voltage lockout events the driver is disabled. Furthermore, TMC2240 provides functions to measure the driver temperature, estimate the motor temperature, and measure one external analog input.
Applications
- Textile, Sewing Machines, Knitting Machines
- Lab and Factory Automation
- 3D Printers, ID Printers/Card Printers
- Liquid Handling, Medical Applications
- Office Automation and Paper Handling
- POS, Massage Chairs
- ATM, Cash Recycler, Bill Validators, Cash Machines
- CCTV, Security
- Pumps and Valve Control
- Heliostat and Antenna Positioning
