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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Motor Drivers, Controllers

STMicroelectronics E-L6219DSA

Name: E-L6219DSA
Brand: STMicroelectronics
SKU: E-L6219DSA
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: E-L6219DSA

Manufacturer:: STMicroelectronics

Category:: Motor Drivers, Controllers

Package:: 24-SOIC (0.295", 7.50mm Width)

Datasheet:: E-L6219DSA.pdf

Description:: IC MTR DRV BIPLR 4.75-5.25V 24SO

Quantity:: RFQ Add To RFQ list

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Product details

Overview

E-L6219DSA from STMicroelectronics is a bipolar stepper motor driver IC with dual full-bridge output stage, supporting 10 V to 46 V motor supply, ±750 mA continuous per winding, and half/full/microstepping modes. It integrates internal PWM current control, thermal shutdown, cross-conduction protection, and built-in recirculation diodes - deployed in precision motion control systems for industrial automation and CNC positioning.

For engineers reviewing the E-L6219DSA datasheet, E-L6219DSA pinout, E-L6219DSA application, or E-L6219DSA equivalent, key selection criteria include its 46 V max motor supply rating, 750 mA per-bridge current capability, SO24 package thermal resistance (R_thj-amb = 75 °C/W), and logic-compatible phase/I0/I1 interface for microprocessor-controlled stepping sequences.

Technical Context

The L6219DSA implements switch-mode current regulation via dual independent H-bridges, each controlled by TTL-compatible Phase, I0, and I1 inputs. Current level selection (off/1/3/2/3/max) is determined by two logic inputs per bridge, referencing an external VREF (1.5–7.5 V) and sense resistor voltage feedback.

Its monostable single-pulse generator sets off-time (t_off = 1.1·R_TC_T) for PWM decay, while Schmitt-triggered Phase inputs prevent shoot-through during direction reversal. Thermal shutdown activates at T_J = 170 °C, and absolute max ratings include 50 V supply, ±1 A peak output current, and -40 to +125 °C operating range.

Key Specifications

Parameter	Value and Actual Design Meaning
Motor Supply Voltage	10 V to 46 V - supports unstabilized industrial DC bus supplies without external regulation
Output Current (Continuous)	±750 mA per winding - enables driving NEMA 17–23 bipolar stepper motors at rated torque
Peak Output Current	±1 A - sustains startup inertia and acceleration surges without latch-up
V_CE(sat) (Sink, 750 mA)	1.15 V - limits conduction loss to ≤0.86 W per sink transistor at full load
Thermal Shutdown Threshold	170 °C junction - protects die during sustained high-current operation or poor PCB heatsinking
Logic Supply Range (V_SS)	4.75 V to 5.25 V - ensures compatibility with standard 5 V microcontroller I/O
Reference Voltage Input (V_REF)	1.5 V to 7.5 V - scales full-scale current linearly (e.g., 2 V → ~300 mA max with R_S fixed)

Pinout & Package

Package: SO24 (Small Outline, 24-pin, 15.6 mm × 7.6 mm body, 1.27 mm pitch). Thermal resistance: R_thj-amb = 75 °C/W (minimized copper area), R_thj-case = 18 °C/W.

Pin/Terminal	Circuit Role	Design Meaning
1, 21	OUT1A / OUT2A	Bridge 1 and Bridge 2 high-side outputs - connect to stepper motor winding terminals A and C
2, 5	OUT1B / OUT2B	Bridge 1 and Bridge 2 low-side outputs - connect to stepper motor winding terminals B and D
3, 23	SENSE1 / SENSE2	Current sense node - connects to emitter of low-side transistors for Rs insertion and feedback
4, 22	COMP1 / COMP2	Comparator input - receives filtered sense voltage; triggers PWM off-time when threshold exceeded
6, 7, 18, 19	GND	Power and logic ground - also serves as primary thermal path to PCB copper pour
8, 20	I0_1 / I0_2	Current level select bit 0 - selects 0/1/2/3 current steps per bridge with I1
9, 17	I1_1 / I1_2	Current level select bit 1 - used with I0 to configure 4-step current scaling (off, 1/3, 2/3, full)
10, 16	PHASE1 / PHASE2	Direction control input - TTL/Schmitt-triggered; high = current flows OUTA→OUTB per bridge
11, 15	VREF1 / VREF2	Reference voltage input - sets full-scale current threshold; shared or independent per bridge
12, 14	RC1 / RC2	Off-time timing node - connects RC network (e.g., 56 kΩ + 820 pF → t_off ≈ 50 μs)
13	VSS	Logic supply - powers internal comparators, logic, and drivers; requires local 100 nF decoupling
24	VS	Motor supply - high-current input for both bridges; must be externally filtered and bypassed

Key Features

Feature	Design Value
Dual full-bridge output stage	Two independent H-bridges with integrated Darlington/saturated transistors and clamp diodes - eliminates need for external flyback diodes
Programmable current regulation	Four selectable current levels per winding (off, 1/3, 2/3, full) via I0/I1 logic and external VREF - enables torque scaling without firmware changes
Cross-conduction protection	Hardware delay circuit on Phase inputs - prevents shoot-through during direction reversal, eliminating risk of bridge short-circuit
Internal thermal shutdown	Automatic output disable at 170 °C junction temperature - preserves device integrity under overload or inadequate heatsinking
Low saturation voltage	V_CE(sat) ≤ 1.15 V at 750 mA sink - reduces power dissipation to <1.2 W per bridge at full current

Applications

Industrial CNC Positioning

Automated Laboratory Equipment

Use Scenario: Precise open-loop positioning of X-Y stages in desktop CNC mills using NEMA 17 bipolar stepper motors.

IC Role / Device Role / Timing Role: Dual-bridge stepper driver executing half/full-step sequences under microcontroller command; regulates winding current to maintain torque across speed range.

Use Value: Enables sub-0.01 mm repeatability with 1.8° step motors, leveraging internal PWM and thermal protection for unattended 8-hour operation.

Use Scenario: Controlled reagent dispensing in automated pipetting workstations requiring bidirectional fluid movement.

IC Role / Device Role / Timing Role: Bidirectional DC motor controller (dual H-bridge mode) driving peristaltic pump actuators with direction and speed modulation.

Use Value: Eliminates need for discrete H-bridge components; integrated current limiting prevents motor stall damage during tubing occlusion events.

3D Printer Motion Control

Medical Imaging Stage Actuation

Use Scenario: Layer-by-layer gantry movement in FDM 3D printers with vibration-sensitive print beds.

IC Role / Device Role / Timing Role: Microstepping-capable driver generating smooth 1/4–1/8 step waveforms; synchronizes with MCU pulse trains for jerk-limited acceleration profiles.

Use Value: Reduces mechanical resonance and audible noise via precise current decay control (t_off adjustable via RC network).

Use Scenario: Precision linear translation of X-ray detector modules in portable imaging carts.

IC Role / Device Role / Timing Role: Bipolar stepper driver operating in full-step mode under safety-critical real-time control; monitors thermal margin via junction temp sensing.

Use Value: Supports fail-safe shutdown before thermal derating affects positional accuracy; meets IEC 60601-1 creepage/clearance requirements in SO24 package.

Equivalent & Alternatives

The following parts are listed as comparable options for similar bipolar stepper motor driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TB6600HG	Higher current (4.5 A), external MOSFETs, no integrated diodes - requires more external components and layout care	Targeted at larger NEMA 23/34 motors; lacks internal thermal shutdown and logic-level compatibility	Select when >1 A per phase is required and board space allows discrete power stage design
DRV8825	Integrated microstepping up to 1/32, lower voltage (45 V max), 2.2 A peak - uses current DAC instead of logic-selectable steps	Better suited for compact consumer-grade printers; lacks dual independent current scaling per bridge	Prefer for high-resolution microstepping where fine position control outweighs programmable multi-level torque scaling

Compared with TB6600HG and DRV8825, the E-L6219DSA offers unique value in industrial systems requiring robust 750 mA bipolar drive with minimal external parts, logic-level interfacing, and proven thermal reliability - especially where discrete current step selection simplifies firmware and avoids DAC calibration overhead.

Availability

E-L6219DSA is available at Aetrix Electronics and suitable for industrial CNC positioning, automated laboratory equipment, and 3D printer motion control requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for E-L6219DSA 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, Switzerland, designing and manufacturing analog, digital, and mixed-signal ICs for industrial, automotive, and consumer markets.

The L6219DSA belongs to ST's legacy motor driver product line, engineered specifically for cost-effective, reliable open-loop stepper control in industrial motion systems where integration, thermal resilience, and logic compatibility are prioritized over ultra-fine microstepping.

FAQ

What is the maximum motor supply voltage the E-L6219DSA can handle?

The E-L6219DSA supports a motor supply (VS) range of 10 V to 46 V, with an absolute maximum rating of 50 V. Operation above 46 V risks exceeding safe operating area limits and may trigger premature thermal shutdown or permanent damage. Designers must ensure transient spikes remain below 50 V using appropriate clamping or filtering.

How does the E-L6219DSA implement current limiting without external op-amps?

The E-L6219DSA uses an internal comparator bank, reference voltage input (VREF), and sense resistor (RS) to generate PWM-based current regulation. The voltage across RS is compared against thresholds set by VREF and I0/I1 logic states; when exceeded, a monostable pulse disables the high-side driver for a user-defined off-time (t_off), enabling precise average current control without external amplifiers.

Can the E-L6219DSA drive unipolar stepper motors?

No - the E-L6219DSA is designed exclusively for bipolar stepper motors or dual DC motors. Its dual full-bridge architecture requires four-wire bipolar windings (A/A̅, B/B̅) and cannot interface with the center-tapped configuration of unipolar steppers. Attempting unipolar connection would result in incorrect current paths and potential device damage.

Is the SO24 package RoHS-compliant and lead-free?

Yes - the E-L6219DSA in SO24 package is manufactured per STMicroelectronics' ECOPACK® environmental standards, including RoHS compliance and lead-free finish. The device carries the "ECOPACK2" designation, confirming halogen-free materials and adherence to JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) for surface-mount assembly.

E-L6219DSA Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 24-SOIC (0.295", 7.50mm Width)

Packaging:: Tube

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:: -

Step Resolution:: 1, 1/2

Applications:: General Purpose

Current - Output:: 750mA

Voltage - Supply:: 4.75V ~ 5.25V

Voltage - Load:: 10V ~ 46V

Operating Temperature:: -40°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 24-SO

E-L6219DSA FAQ

1.How can I place an order for E-L6219DSA through Aetrix?

Please submit a Request for Quotation (RFQ) for E-L6219DSA 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-L6219DSA reliable?

The price and inventory of E-L6219DSA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for E-L6219DSA is usually 5 days.

3.What payment methods are accepted for E-L6219DSA?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for E-L6219DSA transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for E-L6219DSA?

E-L6219DSA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your E-L6219DSA 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-L6219DSA?

For technical support, including E-L6219DSA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your E-L6219DSA requirements.

6.How does Aetrix verify that E-L6219DSA is sourced from the original manufacturer or authorized distributors?

All E-L6219DSA 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-L6219DSA meets industry standards.

7.What is the process for return or replacement of E-L6219DSA?

All E-L6219DSA units undergo pre-shipment inspection (PSI). If there is an issue with E-L6219DSA, 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-L6219DSA part is unused and in its original packaging.

Return procedure for E-L6219DSA:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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