L6470HTR - dSPIN Stepper Motor Driver | STMicroelectronics
Référence : L6470HTR ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $6.5 | $6,50 |
| 10 | $5.85 | $58,50 |
| 100 | $5.2 | $520,00 |
| 500 | $4.68 | $2 340,00 |
| 1 000 | $4.16 | $4 160,00 |
L6470HTR Présentation
A stepper motor driver is a power management IC that translates digital step and direction commands into the precise current sequences needed to rotate a stepper motor. The L6470HTR integrates the control logic, gate drivers, and power MOSFETs, eliminating the need for external components and simplifying PCB design. It belongs to the hierarchy: stepper motor driver -> motor driver -> power management IC -> semiconductor. This integration reduces system cost and board space while improving reliability.
Key features of the L6470HTR include programmable microstepping up to 1/128 step, which provides smooth motion and high positioning accuracy. It offers a wide range of protection features, including overcurrent, overtemperature, and undervoltage lockout. The device also includes a SPI interface for configuration and control, allowing real-time adjustment of motor parameters. The integrated current sensing eliminates the need for external sense resistors, further reducing component count.
The L6470HTR uses a proprietary control algorithm that automatically adjusts the current decay mode to optimize performance across different motor types and load conditions. This adaptive decay control minimizes audible noise and power dissipation. The device also features a programmable slew rate to reduce electromagnetic interference (EMI) in sensitive applications. The digital core operates at up to 16 MHz SPI clock, enabling fast communication with microcontrollers.
Typical applications include 3D printers, CNC machines, robotics, office automation, and industrial automation. In 3D printers, the L6470HTR provides precise filament positioning with microstepping, resulting in high-quality prints. In CNC machines, it drives stepper motors for axis movement with high torque and accuracy. The device's wide voltage range and current capability make it versatile for various motor sizes.
When designing with the L6470HTR, ensure proper thermal management by providing adequate copper area on the PCB for heat dissipation. The HTSSOP28 package has an exposed pad that must be soldered to a thermal relief. Additionally, place decoupling capacitors close to the power supply pins to minimize voltage transients. The SPI interface allows configuration of motor parameters, but careful attention to the register settings is required to avoid unintended behavior.
Alternatives de remplacement direct pour L6470HTR — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
L6472HTR
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
DRV8825
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
L6470HTR Valeurs maximales et caractéristiques électriques
| Supply Voltage Range | 8 V to 45 V |
| Output Current (Peak) | 3 A per phase |
| Output Current (RMS) | 2.1 A per phase |
| Microstepping Resolution | Up to 1/128 step |
| Control Interface | SPI (up to 16 MHz) |
| Number of Channels | 2 (dual full-bridge) |
| Motor Type | Bipolar stepper |
| Protection Features | Overcurrent, overtemperature, undervoltage lockout |
| Boîtier | HTSSOP28 |
| Type de montage | Surface Mount |
| Plage de température de fonctionnement | -40°C to +150°C (junction) |
| Arrêt thermique | Yes |
| Current Decay Mode | Adaptive |
| Slew Rate Control | Programmable |
| Statut RoHS | Compliant |
Configuration des broches de L6470HTR
| Broche 1 | VCC — Logic supply voltage |
| Broche 2 | GND — Ground |
| Broche 3 | OUT1A — Motor output phase A |
| Broche 4 | OUT1B — Motor output phase A |
| Broche 5 | OUT2A — Motor output phase B |
| Broche 6 | OUT2B — Motor output phase B |
| Broche 7 | VS — Motor supply voltage |
| Broche 8 | GND — Ground |
| Broche 9 | SPI_CLK — SPI clock input |
| Broche 10 | SPI_CS — SPI chip select |
| Broche 11 | SPI_DI — SPI data input |
| Broche 12 | SPI_DO — SPI data output |
| Broche 13 | FLAG — Error flag output |
| Broche 14 | RESET — Reset input |
| Broche 15 | STCK — Step clock input |
| Broche 16 | DIR — Direction input |
| Broche 17 | EN — Enable input |
| Broche 18 | GND — Ground |
| Broche 19 | VCC — Logic supply voltage |
| Broche 20 | GND — Ground |
| Broche 21 | NC — Not connected |
| Broche 22 | NC — Not connected |
| Broche 23 | NC — Not connected |
| Broche 24 | NC — Not connected |
| Broche 25 | NC — Not connected |
| Broche 26 | NC — Not connected |
| Broche 27 | NC — Not connected |
| Broche 28 | NC — Not connected |
Applications typiques
L6470HTR convient pour 6 applications: 3D Printers, CNC Machines, Robotics, Office Automation, Industrial Automation, Medical Devices.
3D Printers
The L6470HTR is widely used in 3D printers to drive stepper motors for filament extrusion and axis movement. Its high microstepping resolution (up to 1/128 step) ensures smooth and precise motion, which is critical for print quality. The device's adaptive current decay control minimizes audible noise and vibration, resulting in quieter operation. With a peak current of 3 A, it can drive a wide range of NEMA 17 and NEMA 23 motors commonly found in 3D printers. The SPI interface allows the printer controller to adjust motor parameters in real time, enabling features like current limiting and stall detection. The integrated protection features, including overcurrent and overtemperature shutdown, enhance system reliability. The HTSSOP28 package is compact, fitting well on printer control boards. Overall, the L6470HTR provides a robust and flexible solution for 3D printer motion control.
Recommandé
CNC Machines
In CNC machines, the L6470HTR drives stepper motors for precise axis positioning. Its high current capability (3 A peak) ensures sufficient torque for cutting and milling operations. The microstepping feature allows fine positioning, which is essential for achieving tight tolerances. The device's adaptive decay control optimizes motor performance across different speeds and loads, reducing heat generation and improving efficiency. The SPI interface enables the CNC controller to dynamically adjust current and speed settings, providing flexibility for various machining tasks. The wide supply voltage range (8 V to 45 V) accommodates different power supply configurations. The integrated protection features, such as overcurrent and overtemperature shutdown, protect the motor and driver from damage. The HTSSOP28 package is suitable for compact CNC controller boards. Overall, the L6470HTR offers a reliable and high-performance solution for CNC motion control.
Recommandé
Robotics
The L6470HTR is used in robotics to drive stepper motors for joint actuation and wheel movement. Its high microstepping resolution enables smooth and precise motion, which is important for tasks like pick-and-place and navigation. The device's adaptive current decay control reduces power consumption and heat generation, extending battery life in mobile robots. The SPI interface allows the robot controller to adjust motor parameters in real time, enabling features like torque control and stall detection. The wide supply voltage range (8 V to 45 V) supports various battery configurations. The integrated protection features, including overcurrent and overtemperature shutdown, enhance system safety. The HTSSOP28 package is compact, fitting well on robot control boards. Overall, the L6470HTR provides a versatile and efficient solution for robotic motion control.
Recommandé
Office Automation
The L6470HTR is used in office automation equipment such as printers, scanners, and copiers to drive stepper motors for paper feeding and scanning mechanisms. Its high microstepping resolution ensures smooth and quiet operation, which is important for office environments. The device's adaptive current decay control minimizes audible noise and vibration, enhancing user experience. The SPI interface allows the equipment controller to adjust motor parameters for different paper sizes and media types. The wide supply voltage range (8 V to 45 V) accommodates various power supply designs. The integrated protection features, including overcurrent and overtemperature shutdown, improve reliability. The HTSSOP28 package is compact, fitting well on control boards. Overall, the L6470HTR provides a reliable and efficient solution for office automation motion control.
Recommandé
Industrial Automation
The L6470HTR is used in industrial automation systems to drive stepper motors for conveyor belts, packaging machines, and assembly lines. Its high current capability (3 A peak) ensures sufficient torque for heavy loads. The microstepping feature allows precise positioning, which is essential for automated processes. The device's adaptive current decay control optimizes motor performance across different operating conditions, reducing energy consumption and heat generation. The SPI interface enables the industrial controller to adjust motor parameters in real time, providing flexibility for various tasks. The wide supply voltage range (8 V to 45 V) supports industrial power supplies. The integrated protection features, including overcurrent and overtemperature shutdown, enhance system reliability. The HTSSOP28 package is suitable for industrial control boards. Overall, the L6470HTR offers a robust and high-performance solution for industrial motion control.
Recommandé
Medical Devices
The L6470HTR is used in medical devices such as infusion pumps, diagnostic equipment, and laboratory automation to drive stepper motors for precise fluid control and sample handling. Its high microstepping resolution ensures accurate and smooth motion, which is critical for medical applications. The device's adaptive current decay control minimizes noise and vibration, which is important for patient comfort. The SPI interface allows the medical device controller to adjust motor parameters for different protocols. The wide supply voltage range (8 V to 45 V) supports various power supply designs. The integrated protection features, including overcurrent and overtemperature shutdown, enhance safety. The HTSSOP28 package is compact, fitting well on medical device boards. Overall, the L6470HTR provides a reliable and precise solution for medical motion control.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour L6470HTR — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | L6472HTR | L6470PD | DRV8825 |
|---|---|---|---|---|
| Package | HTSSOP28 | HTSSOP28 | PowerSO-28 | HTSSOP28 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | Texas Instruments |
| Supply Voltage Range | 8 V to 45 V | 8 V to 45 V | 8 V to 45 V | 8.2 V to 45 V |
| Peak Output Current | 3 A | 1.5 A | 3 A | 2.5 A |
| Microstepping Resolution | Up to 1/128 step | Up to 1/128 step | Up to 1/128 step | Up to 1/32 step |
| Control Interface | SPI | SPI | SPI | Step/Dir |
| Protection Features | Overcurrent, overtemperature, undervoltage | Overcurrent, overtemperature, undervoltage | Overcurrent, overtemperature, undervoltage | Overcurrent, overtemperature, undervoltage |
| Price (1 pcs) | $6.50 | $5.20 | $6.50 | $3.50 |
Principaux différenciateurs
- Higher peak current (3 A) compared to L6472HTR (vs L6472HTR)
- SPI interface with advanced control features (vs DRV8825)
- Higher microstepping resolution (1/128) compared to DRV8825 (vs DRV8825)
Notes de conception
The L6470HTR can dissipate significant power when driving high currents. Ensure the exposed pad on the HTSSOP28 package is soldered to a large copper area on the PCB to act as a heat sink. For continuous operation at 3 A, a minimum of 2 square inches of copper is recommended. Use thermal vias to connect the pad to inner layers for better heat spreading.
Place a 100 nF ceramic capacitor close to each power supply pin (VS and VCC) to decouple high-frequency noise. Additionally, use a bulk capacitor (e.g., 10 uF) on the VS pin to handle current transients. Keep the SPI lines short and avoid routing them near high-current traces to prevent interference.
Do not exceed the absolute maximum ratings, especially the supply voltage (45 V) and output current (3 A peak). Ensure the SPI communication is properly configured before enabling the motor. Incorrect register settings can cause unexpected motor behavior. Also, note that the L6470HTR requires a logic supply (VCC) separate from the motor supply (VS); both must be present for proper operation.
Informations de conformité
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified.
