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STMicroelectronics E-L6219DSATR
- Part No.:
- E-L6219DSATR
- Manufacturer:
- STMicroelectronics
- Category:
- Motor Drivers, Controllers
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
E-L6219DSATR.pdf
- Description:
- IND & POWER CONV
- Quantity:
- Payment:
- Shipping:
Inventory:1,566
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Product details
Overview
E-L6219DSATR from STMicroelectronics is a bipolar stepper motor driver IC in SO24 package, delivering up to 750 mA continuous current per winding with 46 V max supply voltage, internal PWM current control, thermal shutdown, and built-in recirculation diodes-used in precision open-loop motion control for industrial automation and CNC positioning systems.
For engineers reviewing the E-L6219DSATR datasheet, E-L6219DSATR pinout, E-L6219DSATR application, or E-L6219DSATR equivalent, key selection criteria include bipolar H-bridge topology, dual-winding current regulation via external sense resistor and VREF, phase-controlled direction logic, RC-set off-time, and thermal protection behavior under sustained load.
Technical Context
The L6219DSA integrates two independent full H-bridges with Darlington source/saturated sink output stages, each supporting bidirectional current flow up to ±750 mA continuous (±1 A peak). Current regulation uses comparator-based PWM with selectable trip thresholds (via I0/I1 logic inputs) and externally set off-time (RT/CT network).
Logic interface includes TTL-compatible Phase, I0, and I1 inputs with Schmitt-trigger noise immunity and cross-conduction prevention delay. Internal thermal shutdown activates at 170 °C junction temperature, and the device operates across -40 °C to +125 °C ambient with unstabilized motor supply (10–46 V) and separate 4.75–5.25 V logic rail (VSS).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output current (continuous) | ±750 mA per bridge - sets maximum holding torque and low-speed step accuracy |
| Supply voltage range (VS) | 10 V to 46 V - supports wide-range unregulated DC motor supplies without external regulators |
| Logic supply (VSS) | 4.75 V to 5.25 V - requires stable 5 V rail for reliable TTL-level input decoding |
| Current sense reference (VREF) | 1.5 V to 7.5 V - scales full-scale output current linearly (e.g., 5 V → 750 mA; 2 V → ~200 mA) |
| Thermal shutdown threshold | 170 °C - disables outputs to prevent permanent damage during overload or poor heatsinking |
| Off-time programmability | toff = 1.1 × RT × CT - enables tuning of chopper frequency and current ripple (e.g., 56 kΩ + 820 pF → 50 μs) |
| Saturation voltage (sink) | 1.15 V at 750 mA - determines conduction loss and heat dissipation per bridge leg |
Pinout & Package
SO24 surface-mount package with exposed thermal pad (pins 6, 7, 18, 19 serve as GND and thermal conduction paths); 24-pin wide-body SOIC footprint compliant with JEDEC MS-013AC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 21 | OUT1A / OUT2A | H-bridge output terminals for winding 1 and winding 2 high-side connections |
| 2, 5 | OUT1B / OUT2B | H-bridge output terminals for winding 1 and winding 2 low-side connections |
| 3, 23 | SENSE1 / SENSE2 | Emitter sense nodes for external current-sense resistors (Rs) on each bridge |
| 4, 22 | COMP1 / COMP2 | Comparator inputs receiving filtered Rs voltage for PWM current limiting |
| 6, 7, 18, 19 | GND | Power and logic ground return paths; also conduct heat from die to PCB copper |
| 8, 20 | I0_1 / I0_2 | Logic inputs selecting current level (0/3, 1/3, 2/3, or full scale) per bridge |
| 9, 17 | I1_1 / I1_2 | Complementary logic inputs completing 2-bit current level selection per bridge |
| 10, 16 | PHASE1 / PHASE2 | TTL-level direction controls determining current polarity per winding (A→B or B→A) |
| 11, 15 | VREF1 / VREF2 | Analog reference inputs setting full-scale current threshold for each bridge |
| 12, 14 | RC1 / RC2 | External RC network connection points defining PWM off-time per bridge |
| 13 | VSS | Dedicated 5 V logic supply input for internal digital circuitry |
| 24 | VS | High-voltage motor supply input (10–46 V) feeding both H-bridge power stages |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent H-bridge output stage | Enables simultaneous bidirectional control of two motor windings without external transistors or diodes |
| Programmable current regulation | Four discrete current levels per winding (0%, 33%, 67%, 100%) selected by I0/I1 logic and scaled by VREF |
| Integrated recirculation diodes | Eliminates need for eight external flyback diodes, reducing board area and BOM count |
| Cross-conduction protection | Hardware delay prevents shoot-through during phase reversal, enhancing reliability under dynamic switching |
| Thermal shutdown with auto-recovery | Halts operation above 170 °C junction temperature and resumes when safe, avoiding latch-up failure |
Applications
| Industrial CNC Positioning | Lab Automation Stage Control |
|---|---|
Use Scenario: Open-loop X-Y table movement in benchtop CNC mills with 1.8° hybrid stepper motors. IC Role / Device Role / Timing Role: Bipolar H-bridge driver executing half-step and full-step sequences under microcontroller direction. Use Value: Delivers consistent 750 mA per phase across 10–46 V supply range, enabling torque retention at varying input voltages without regulation. | Use Scenario: Precision Z-axis focus adjustment in automated optical inspection systems. IC Role / Device Role / Timing Role: Dual-winding current controller maintaining sub-micron repeatability via regulated microstepping. Use Value: Internal PWM and RC-tuned off-time minimize current ripple (<5% peak-to-peak), reducing positional jitter during dwell periods. |
| Medical Infusion Pump Actuation | Printed Circuit Board Router |
Use Scenario: Peristaltic pump actuation requiring fail-safe current-limited motor drive in Class II medical devices. IC Role / Device Role / Timing Role: Protected stepper driver with thermal shutdown and overcurrent detection replacing mechanical limit switches. Use Value: Built-in 170 °C thermal cutoff and ±1 A peak current limit ensure compliance with IEC 60601-1 safety requirements without external monitoring. | Use Scenario: High-duty-cycle XY gantry motion in desktop PCB milling machines operating 8+ hours/day. IC Role / Device Role / Timing Role: Dual-bridge motor controller managing simultaneous winding excitation with shared VREF and RC timing. Use Value: Exposed GND pins (6, 7, 18, 19) enable direct thermal coupling to 2 oz copper pour, sustaining 750 mA continuous without heatsink. |
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 rating (4.5 A), external MOSFET drivers, no integrated diodes | Requires external gate drivers, sense resistors, and flyback diodes; suited for high-power systems | Select when >1 A per phase is required and board space allows discrete power stage design |
| DRV8825 | Microstepping up to 1/32, integrated current DAC, lower voltage range (8.2–45 V) | No external RC timing; fixed internal PWM; lacks dual independent VREF inputs | Prefer for compact designs needing fine microstepping resolution and simplified layout |
Compared with TB6600HG and DRV8825, the E-L6219DSATR offers unique dual independent VREF and RC timing per bridge, enabling asymmetric current profiles and custom chopper frequencies-valuable for multi-motor systems with mismatched inductance or thermal constraints.
Availability
E-L6219DSATR is available at Aetrix Electronics and suitable for industrial CNC positioning, lab automation stage control, and medical infusion pump actuation requiring stable component supply across extended production lifecycles.
Supply support for E-L6219DSATR 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, mixed-signal, power, and microcontroller solutions for industrial, automotive, and consumer markets.
The L6219DSA belongs to ST's legacy motor driver product line, engineered specifically for cost-sensitive, high-reliability open-loop stepper control in industrial equipment where integration, thermal robustness, and supply flexibility are critical.
FAQ
What is the maximum allowable motor supply voltage for E-L6219DSATR?
The absolute maximum motor supply voltage (VS) is 50 V, but the recommended operating range is 10 V to 46 V per the datasheet. Operation above 46 V risks exceeding safe operating area limits under load, especially at elevated temperatures. The 46 V upper limit ensures margin for transient spikes and maintains specified output saturation voltage and thermal performance.
Can E-L6219DSATR drive unipolar stepper motors?
No, E-L6219DSATR is designed exclusively for bipolar stepper motors with center-tapped or dual-winding configurations requiring full H-bridge current reversal. It lacks the internal transistor arrangement needed for unipolar 5-lead or 6-lead motor drive, and its Phase and I0/I1 logic assumes bidirectional winding current control-not unipolar phase sequencing.
How does the RC network affect motor performance?
The RC network connected to pins 12 and 14 sets the PWM off-time (toff = 1.1 × RT × CT), directly controlling chopper frequency and current ripple. Shorter toff increases switching frequency, reducing audible noise and improving current regulation at low speeds-but raises switching losses. Longer toff lowers frequency, easing EMI filtering but increasing ripple amplitude and potential step loss at high microstep resolutions.
Is external current-sense resistor placement critical?
Yes-external sense resistors (Rs) must connect directly between SENSE pins (3, 23) and GND with minimal trace length and no vias. The ground return path from Rs to pins 6/7/18/19 must be a dedicated low-inductance copper pour. Poor layout introduces noise into the comparator input (pins 4, 22), causing erratic current limiting, missed steps, or thermal runaway due to false PWM disabling.
E-L6219DSATR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 24-SOIC (0.295", 7.50mm 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:
- -
- 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-L6219DSATR FAQ
1.How can I place an order for E-L6219DSATR through Aetrix?
Please submit a Request for Quotation (RFQ) for E-L6219DSATR 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-L6219DSATR reliable?
The price and inventory of E-L6219DSATR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for E-L6219DSATR is usually 5 days.
3.What payment methods are accepted for E-L6219DSATR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for E-L6219DSATR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for E-L6219DSATR?
E-L6219DSATR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your E-L6219DSATR 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-L6219DSATR?
For technical support, including E-L6219DSATR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your E-L6219DSATR requirements.
6.How does Aetrix verify that E-L6219DSATR is sourced from the original manufacturer or authorized distributors?
All E-L6219DSATR 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-L6219DSATR meets industry standards.
7.What is the process for return or replacement of E-L6219DSATR?
All E-L6219DSATR units undergo pre-shipment inspection (PSI). If there is an issue with E-L6219DSATR, 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-L6219DSATR part is unused and in its original packaging.
Return procedure for E-L6219DSATR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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