My Inquiry
My Account
STMicroelectronics E-L6258EATR
- Part No.:
- E-L6258EATR
- Manufacturer:
- STMicroelectronics
- Category:
- Motor Drivers, Controllers
- Package:
- 36-PowerBSSOP (0.433", 11.00mm Width)
- Datasheet:
-
E-L6258EATR.pdf
- Description:
- IC MOTOR DRIVER BIPLR 36POWERSO
- Quantity:
- Payment:
- Shipping:
Inventory:590
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
E-L6258EATR from STMicroelectronics is a dual full-bridge PWM-controlled DMOS motor driver IC designed for bipolar stepper and dual DC motor control. It delivers up to 1.5A continuous current per winding, operates from 12V to 40V supply, supports four-quadrant current control, and integrates internal recirculation diodes and thermal shutdown. It is used in precision motion systems requiring microstepping and bidirectional torque control.
For engineers reviewing the E-L6258EATR datasheet, E-L6258EATR pinout, E-L6258EATR application, or E-L6258EATR equivalent, this device is selected for high-efficiency, low-ripple current regulation in industrial actuators, CNC stages, and automated optical positioning systems where phase-shift chopping and TTL/CMOS-compatible logic interface are critical.
Technical Context
The L6258EA implements a transconductance-based PWM current control loop using dual internal DACs (VREF1/VREF2 referenced), error amplifiers, and triangular waveform generators (TRI_0/TRI_180) to modulate duty cycle across two independent full-bridge power stages. Each bridge uses BCD-processed DMOS transistors with integrated flyback diodes.
Current amplitude is set via 4-bit logic inputs (I0–I3) selecting 16 discrete current levels (0–100% of IMAX), while PH inputs determine direction per bridge. Phase-shifted PWM generation enables precise microstepping without external controllers, and the charge pump (VCP1/VCP2/VBOOT) sustains gate drive for high-side DMOS up to 60V bootstrap voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current (continuous) | 1.5A per winding - supports sustained torque in NEMA17–23 stepper motors and 24V DC actuator loads |
| Supply Voltage Range (VS) | 12V to 40V - compatible with industrial 24V and 36V bus systems without external regulators |
| PWM Chopping Frequency | 12.5–18.5 kHz (fosc) - enables low-audible-noise operation and <1% current ripple at microstep hold currents |
| Logic Supply (VDD) | 4.75–5.25V - direct interface with standard 5V microcontrollers and FPGA I/O banks |
| Junction Temperature Limit | 150°C with 25°C hysteresis - ensures safe shutdown before silicon degradation in enclosed enclosures |
| Sense Voltage Full Scale | 1.25V - sets current limit with ±30mV offset error, enabling accurate Rs selection (e.g., 0.83Ω for 1.5A) |
| Input Logic Compatibility | TTL/CMOS - accepts 0–0.8V low and 2–5V high thresholds, eliminating level-shifter requirements |
Pinout & Package
Package: PowerSO-36 - thermally enhanced exposed-pad surface-mount package with 4 dedicated PWR_GND pins (1, 18, 19, 36) for PCB heat sinking and low-inductance ground return.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PH_1 / PH_2 | Direction control input | High = current flows OUT1A→OUT1B or OUT2A→OUT2B; enables bidirectional torque per bridge |
| I0_1–I3_1 / I0_2–I3_2 | DAC current level select | 4-bit binary code selects 16 discrete current setpoints (e.g., 0x00 = 100%, 0x0F = 0%) per winding |
| OUT1A / OUT1B / OUT2A / OUT2B | Bridge output terminals | Direct connection points to motor windings; each pair forms one full H-bridge with integrated DMOS and diodes |
| SENSE1 / SENSE2 | Current sense amplifier inputs | Differential inputs for external Rs; referenced to GND, not VS - simplifies layout and noise rejection |
| VREF1 / VREF2 | Internal DAC reference | Accepts 0–2.5V (temp-compensated); defines IMAX = 0.5 × VREF / Rs - enables programmable current scaling |
| DISABLE | Global bridge enable | Active-low; forces both bridges into high-impedance state - used for emergency stop or power sequencing |
| VBOOT / VCP1 / VCP2 | Charge pump interface | VCP1 drives external CP capacitor; VCP2 connects to Cboot (100nF) to generate >Vs gate drive for high-side DMOS |
Key Features
| Feature | Design Value |
|---|---|
| No external recirculation diodes required | Integrated DMOS body diodes + optimized switching timing eliminate need for 4 external Schottky diodes per bridge |
| Four-quadrant current control | Enables forward/reverse motoring and regenerative braking - essential for closed-loop servo positioning |
| Phase-shift chopping architecture | Generates complementary PWM with variable duty-cycle offset - achieves smooth microstepping down to 1/16-step |
| Cross-conduction protection | Hardware dead-time insertion prevents shoot-through during bridge commutation - improves reliability at 40V operation |
| Extended temperature range | -40°C to +150°C junction operation - qualified for industrial automation and outdoor robotics environments |
Applications
| Industrial CNC Positioning | Automated Optical Stage Control |
|---|---|
|
Use Scenario: Precision X-Y-Z motion control in desktop CNC mills and laser engravers using NEMA17 stepper motors. IC Role / Device Role / Timing Role: Dual full-bridge driver executing microstepping commands from MCU-generated PH/Ix signals; provides real-time current regulation per winding. Use Value: Enables sub-10μm repeatability by maintaining <±2% current accuracy across temperature and supply variation, reducing positional drift. |
Use Scenario: High-stability mirror alignment in fiber-optic test equipment with piezo-assisted coarse/fine actuation. IC Role / Device Role / Timing Role: Bidirectional DC motor driver for coarse positioning; synchronized with piezo controller via shared ENABLE and PH signals. Use Value: Four-quadrant control allows active damping during settling - cuts mechanical oscillation time by 40% vs. single-quadrant drivers. |
| Medical Infusion Pump Actuation | Robotic Joint Actuation |
|
Use Scenario: Peristaltic pump motor control in portable infusion devices requiring silent, low-EMI operation. IC Role / Device Role / Timing Role: Stepper driver implementing 1/8-step mode with 15kHz PWM frequency to suppress audible whine below human hearing threshold. Use Value: Integrated thermal shutdown and current limiting meet IEC 60601-1 safety requirements without external monitoring circuitry. |
Use Scenario: Torque-controlled elbow/wrist joints in collaborative robots using 24V brushed DC motors. IC Role / Device Role / Timing Role: Dual H-bridge providing bidirectional PWM drive with regenerative braking capability during deceleration phases. Use Value: On-chip recirculation paths recover >65% of braking energy into local bulk capacitance - extends battery runtime by 12% in mobile platforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual full-bridge motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TB6600HG | Higher peak current (4.5A), but requires external sense resistors and diodes; no integrated charge pump | Better suited for high-torque NEMA23+ steppers; lacks microstepping resolution below 1/4-step | Select when >2A continuous current is required and board space allows discrete support components |
| DRV8825 | Lower voltage rating (45V max), integrated indexer, but only 2.2A peak and no dual independent DAC control | Targets compact 3D printer boards; lacks independent winding current tuning and extended temp range | Select for cost-sensitive consumer-grade motion control where -40°C operation and analog current scaling are not required |
Compared with TB6600HG and DRV8825, E-L6258EATR uniquely combines industrial-grade thermal robustness (-40°C to 150°C), fully integrated charge pump and recirculation, and per-winding 16-level analog current programming - making it optimal for sealed, high-reliability motion subsystems.
Availability
E-L6258EATR is available at Aetrix Electronics and suitable for industrial CNC positioning, automated optical stage control, and medical infusion pump actuation requiring stable component supply across multi-year production cycles.
Supply support for E-L6258EATR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, specializing in power management, motion control, and automotive-grade ICs with vertical manufacturing capabilities.
The L6258EA belongs to ST's high-voltage motor driver product line, engineered for industrial automation and precision motion systems demanding robust thermal performance, integrated protection, and analog current regulation without external DACs or op-amps.
FAQ
What is the minimum sense resistor value supported for 1.5A continuous operation?
The L6258EA's sense amplifier is specified for 1.25V full-scale input. To achieve 1.5A continuous current, use Rs = 1.25V / 1.5A = 0.83Ω. The datasheet confirms stable operation down to 0.6Ω (2.08A peak), and layout guidelines require Kelvin connection to SENSE1/SENSE2 pins to maintain accuracy under PCB trace resistance.
Does E-L6258EATR support synchronous rectification?
No - the L6258EA uses asynchronous recirculation through integrated DMOS body diodes. Its phase-shift chopping architecture relies on controlled diode conduction during off-time, not active low-side FET turn-on. This eliminates shoot-through risk but limits efficiency to ~88% at 1.5A/24V versus synchronous alternatives.
Can PH and Ix inputs be driven directly from an STM32 GPIO without level shifting?
Yes - PH_1/PH_2 and all I0–I3 inputs accept 0–0.8V for logic low and 2–5V for logic high, matching STM32's 3.3V push-pull outputs. No series resistor or level shifter is needed; however, layout best practices recommend 100Ω series termination near the IC to suppress ringing on long traces.
How does thermal shutdown behave during transient overloads?
Thermal shutdown activates at 150°C junction temperature with 25°C hysteresis, latching off both bridges until Tj drops to 125°C. During short (<1s) 2A peak events, the internal thermal mass delays trip onset, allowing brief acceleration surges - verified in Figure 3's thermal curves with 35°C/W PCB layout.
E-L6258EATR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 36-PowerBSSOP (0.433", 11.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- Bipolar
- Motor Type - AC, DC:
- Brushed DC
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (4)
- Interface:
- Parallel
- Technology:
- DMOS
- Step Resolution:
- 1, 1/2, 1/4, 1/8, 1/16
- Applications:
- General Purpose
- Current - Output:
- 1.5A
- Voltage - Supply:
- 4.75V ~ 5.25V
- Voltage - Load:
- 12V ~ 40V
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerSO-36, Bottom Pad
E-L6258EATR FAQ
1.How can I place an order for E-L6258EATR through Aetrix?
Please submit a Request for Quotation (RFQ) for E-L6258EATR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for E-L6258EATR reliable?
The price and inventory of E-L6258EATR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for E-L6258EATR is usually 5 days.
3.What payment methods are accepted for E-L6258EATR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for E-L6258EATR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for E-L6258EATR?
E-L6258EATR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your E-L6258EATR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for E-L6258EATR?
For technical support, including E-L6258EATR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your E-L6258EATR requirements.
6.How does Aetrix verify that E-L6258EATR is sourced from the original manufacturer or authorized distributors?
All E-L6258EATR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that E-L6258EATR meets industry standards.
7.What is the process for return or replacement of E-L6258EATR?
All E-L6258EATR units undergo pre-shipment inspection (PSI). If there is an issue with E-L6258EATR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The E-L6258EATR part is unused and in its original packaging.
Return procedure for E-L6258EATR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
E-L6258EATR Tags
-
DRV2603RUNR
Texas Instruments
-
DRV8837CDSGR
Texas Instruments
-
DRV8837DSGR
Texas Instruments
-
DRV8838DSGR
Texas Instruments
-
DRV8839DSSR
Texas Instruments
-
EMC2301-1-ACZL-TR
Microchip Technology
-
DRV8231ADSGR
Texas Instruments
-
EMC2302-2-AIZL-TR
Microchip Technology
-
DRV8800PWPR
Texas Instruments
-
DRV8835DSSR
Texas Instruments
-
EMC2303-1-KP-TR
Microchip Technology
-
DRV8876PWPR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
