Overview
The E-L6258EX is a PWM controlled high current DMOS universal motor driver produced by STMicroelectronics. This device is realized in BCD (Bipolar-CMOS-DMOS) technology and is designed for motor control applications. It can drive both windings of a bipolar stepper motor or bidirectionally control two DC motors. The E-L6258EX features high efficiency phase shift chopping, which minimizes current ripple, making it ideal for both stepper and DC motors. The device includes thermal protection circuitry to ensure safe operation and is packaged in a PowerSO36 package.
Key Specifications
| Parameter | Description | Value | Unit |
|---|---|---|---|
| Vs (Supply Voltage) | Maximum supply voltage | 45 | V |
| VDD (Logic Supply Voltage) | Logic supply voltage | 7 | V |
| Vref1/Vref2 (Reference Voltage) | Reference voltage | 2.5 | V |
| IO (Output Current - Peak) | Peak output current (non-repetitive, max 1 second) | 2 | A |
| IO (Output Current - Continuous) | Continuous output current per winding | 1.5 | A |
| Vin (Logic Input Voltage Range) | Logic input voltage range | -0.3 to 7 | V |
| Vboot (Bootstrap Supply) | Bootstrap supply voltage | 60 | V |
| Tj (Junction Temperature) | Maximum junction temperature | 150 | °C |
| Tstg (Storage Temperature Range) | Storage temperature range | -55 to 150 | °C |
Key Features
- Able to drive both windings of a bipolar stepper motor or two DC motors.
- Output current up to 1.5A per winding in continuous mode, with peak start-up current up to 2A.
- Wide voltage range: 12V to 40V.
- Four quadrant current control, ideal for microstepping and DC motor control.
- Precision PWM control.
- No need for recirculation diodes.
- TTL/CMOS compatible inputs.
- Cross conduction protection.
- Thermal shutdown protection.
Applications
The E-L6258EX is suitable for various motor control applications, including:
- Bipolar stepper motor control
- DC motor control
- Microstepping applications
- Industrial automation
- Robotics
- Automotive systems requiring high current motor control
Q & A
- What is the maximum supply voltage for the E-L6258EX?
The maximum supply voltage is 45V.
- What is the continuous output current per winding?
The continuous output current per winding is 1.5A.
- What is the peak start-up current for the E-L6258EX?
The peak start-up current is up to 2A for a maximum of 1 second.
- Is the E-L6258EX compatible with TTL/CMOS inputs?
Yes, the E-L6258EX is TTL/CMOS compatible.
- Does the E-L6258EX require recirculation diodes?
No, the E-L6258EX does not require recirculation diodes.
- What type of protection does the E-L6258EX have against overheating?
The E-L6258EX has thermal shutdown protection.
- What is the package type for the E-L6258EX?
The E-L6258EX is packaged in a PowerSO36 package.
- What are the typical applications for the E-L6258EX?
Typical applications include bipolar stepper motor control, DC motor control, microstepping, industrial automation, robotics, and automotive systems.
- What is the voltage range for the E-L6258EX?
The voltage range is from 12V to 40V.
- Does the E-L6258EX support four quadrant current control?
Yes, the E-L6258EX supports four quadrant current control, ideal for microstepping and DC motor control.
