Overview
The STMicroelectronics E-L9935013TR is a two-phase stepper motor driver designed to drive bipolar stepper motors. This device is part of the L9935 family and is packaged in a PowerSO-20 format. It is equipped with advanced features to ensure efficient and reliable motor control. The E-L9935013TR can be controlled via a serial interface (SPI), making it versatile for various applications. It includes integrated protections such as short-circuit, over-temperature, and cross-conduction protection, ensuring a well-protected system.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| No. of Pins | 20 | Pins |
| Output Current | 1.1 A | A |
| Motor Type | Stepper | |
| No. of Outputs | 2 Outputs | |
| Driver Case Style | PowerSO | |
| Supply Voltage Min | 8 V | V |
| Supply Voltage Max | 24 V | V |
| Standby Consumption | Typically 40 µA | µA |
| MSL | MSL 3 - 168 hours |
Key Features
- 2 x 1.1 A full bridge outputs
- Integrated chopping current regulation
- Minimized power dissipation during flyback
- Output stages with controlled output voltage slopes to reduce electromagnetic radiation
- Short-circuit protection of all outputs
- Error-flag for over load, open load, and over temperature pre-alarm
- Delayed channel switch on to reduce peak currents
- Serial interface (SPI) for control
- Standby consumption typically 40 µA
Applications
The E-L9935013TR is suitable for a variety of applications that require precise control of bipolar stepper motors. These include industrial automation, medical devices, 3D printers, CNC machines, and any system where accurate and reliable motor control is essential. The integrated protections and low power consumption make it a versatile choice for both high-performance and energy-efficient systems.
Q & A
- What is the maximum output current of the E-L9935013TR?
The maximum output current is 1.1 A per full bridge output.
- What is the supply voltage range for the E-L9935013TR?
The supply voltage range is from 8 V to 24 V.
- Does the E-L9935013TR have built-in protection features?
Yes, it includes short-circuit protection, over-temperature protection, and cross-conduction protection.
- How is the E-L9935013TR controlled?
The device can be controlled via a serial interface (SPI).
- What is the standby consumption of the E-L9935013TR?
The standby consumption is typically 40 µA.
- What type of motor does the E-L9935013TR drive?
The E-L9935013TR is designed to drive bipolar stepper motors.
- What is the package type of the E-L9935013TR?
The package type is PowerSO-20.
- Does the E-L9935013TR have electromagnetic radiation reduction features?
Yes, it has output stages with controlled output voltage slopes to reduce electromagnetic radiation.
- How does the E-L9935013TR handle overcurrent conditions?
The device has an internal overcurrent shut down that turns off the source transistors in case of overload and sets the corresponding error flag.
- Can the E-L9935013TR be synchronized with other devices?
Yes, it supports external clocking to synchronize multiple devices.
