STMicroelectronics

L6470HTR - dSPIN Stepper Motor Driver | STMicroelectronics

Name: L6470HTR
Brand: STMicroelectronics
Price: 6.50 USD
Availability: InStock

MPN: L6470HTR ✓ Active

In Stock (99,999) Ships in 1-3 business days

8 V to 45 V Vdss 3 A per phase Id HTSSOP28 Package

$6.5 USD / Unit

MOQ: 1 |

Volume Pricing

Qty	Unit Price	Extended
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

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

Quantity

Drop-in alternatives for L6470HTR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Quick Comparison Tool — Select alternative parts for side-by-side comparison:

L6472HTR

✅ Drop-In

📦 HTSSOP28

Lower peak current (1.5 A vs 3 A), same pinout

📋 Reference alternative (not in catalog)

DRV8825

✅ Drop-In

📦 HTSSOP28

Cross-brand, similar current (2.5 A peak), different register map

📋 Reference alternative (not in catalog)

ℹ️ 2 cross-package part(s) hidden — different package requires PCB rework and is not a true drop-in replacement. Contact us if you need cross-package suggestions.

L6470HTR Maximum Ratings & Electrical Characteristics

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
Package	HTSSOP28
Mounting Type	Surface Mount
Operating Temperature Range	-40°C to +150°C (junction)
Thermal Shutdown	Yes
Current Decay Mode	Adaptive
Slew Rate Control	Programmable
RoHS Status	Compliant

L6470HTR Pin Configuration

Pin 1	VCC — Logic supply voltage
Pin 2	GND — Ground
Pin 3	OUT1A — Motor output phase A
Pin 4	OUT1B — Motor output phase A
Pin 5	OUT2A — Motor output phase B
Pin 6	OUT2B — Motor output phase B
Pin 7	VS — Motor supply voltage
Pin 8	GND — Ground
Pin 9	SPI_CLK — SPI clock input
Pin 10	SPI_CS — SPI chip select
Pin 11	SPI_DI — SPI data input
Pin 12	SPI_DO — SPI data output
Pin 13	FLAG — Error flag output
Pin 14	RESET — Reset input
Pin 15	STCK — Step clock input
Pin 16	DIR — Direction input
Pin 17	EN — Enable input
Pin 18	GND — Ground
Pin 19	VCC — Logic supply voltage
Pin 20	GND — Ground
Pin 21	NC — Not connected
Pin 22	NC — Not connected
Pin 23	NC — Not connected
Pin 24	NC — Not connected
Pin 25	NC — Not connected
Pin 26	NC — Not connected
Pin 27	NC — Not connected
Pin 28	NC — Not connected

Safe Operating Area (SOA) & Thermal Characteristics

No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.

Typical Applications

L6470HTR is suitable for 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.

Recommended

STM32F103 (Microcontroller for SPI control) NEMA17 (Typical stepper motor)

🏭

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.

Recommended

STM32F407 (Microcontroller for SPI control) NEMA23 (Typical stepper motor)

🤖

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.

Recommended

STM32F303 (Microcontroller for SPI control) NEMA14 (Typical stepper motor)

🖨️

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.

Recommended

STM32F030 (Microcontroller for SPI control) NEMA11 (Typical stepper motor)

🏭

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.

Recommended

STM32F103 (Microcontroller for SPI control) NEMA34 (Typical stepper motor)

💊

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.

Recommended

STM32L4 (Microcontroller for SPI control) NEMA8 (Typical stepper motor)

Recommended Products Summary

STM32F103 Microcontroller for SPI control Used in: 3D Printers, Industrial Automation NEMA17 Typical stepper motor Used in: 3D Printers STM32F407 Microcontroller for SPI control Used in: CNC Machines NEMA23 Typical stepper motor Used in: CNC Machines STM32F303 Microcontroller for SPI control Used in: Robotics NEMA14 Typical stepper motor Used in: Robotics STM32F030 Microcontroller for SPI control Used in: Office Automation NEMA11 Typical stepper motor Used in: Office Automation NEMA34 Typical stepper motor Used in: Industrial Automation STM32L4 Microcontroller for SPI control Used in: Medical Devices NEMA8 Typical stepper motor Used in: Medical Devices

What is the supply voltage range of L6470HTR?

The L6470HTR operates from a supply voltage range of 8 V to 45 V. According to the STMicroelectronics L6470 datasheet, this wide range allows it to be used in various applications, from battery-powered devices to industrial 24V systems.

What is the maximum output current of L6470HTR?

The L6470HTR can deliver up to 3 A peak current per phase, with a continuous RMS current of 2.1 A per phase. This makes it suitable for driving a wide range of bipolar stepper motors in applications like 3D printers and CNC machines.

Does L6470HTR support microstepping?

Yes, the L6470HTR supports programmable microstepping up to 1/128 step. This high resolution enables smooth motion and precise positioning, which is critical for applications such as 3D printing and robotics.

What is the control interface of L6470HTR?

The L6470HTR uses a SPI interface for configuration and control, supporting clock speeds up to 16 MHz. This allows real-time adjustment of motor parameters and simplifies integration with microcontrollers.

What protection features does L6470HTR have?

The L6470HTR includes overcurrent, overtemperature, and undervoltage lockout protection. These features help prevent damage to the device and the motor, enhancing system reliability.

What is the package type of L6470HTR?

The L6470HTR is available in a HTSSOP28 package, which is a surface-mount package with an exposed thermal pad. This package is suitable for compact designs and provides good thermal performance when properly soldered.

What is the operating temperature range of L6470HTR?

The L6470HTR has a junction temperature range of -40°C to +150°C. This wide range allows it to operate in harsh environments, including industrial and automotive applications.

Can L6470HTR be used in 3D printers?

Yes, the L6470HTR is widely used in 3D printers due to its high microstepping resolution and current capability. It provides precise filament positioning, resulting in high-quality prints with minimal vibration and noise.

What is the difference between L6470HTR and L6470PD?

The L6470HTR is the HTSSOP28 package variant, while the L6470PD is the PowerSO-28 package variant. Both have identical electrical specifications, but the package differs, so they are not drop-in replacements for each other.

What is the best drop-in replacement for L6470HTR?

The best drop-in replacement for L6470HTR is the L6470PD from STMicroelectronics, which has the same electrical specifications but a different package (PowerSO-28). For a pin-compatible alternative in the same HTSSOP28 package, consider the L6472HTR, which offers similar functionality with a lower maximum current.

Where to buy L6470HTR online?

The L6470HTR is available from major distributors such as DigiKey and Mouser. As of 2026-08-06, it is in stock at DigiKey with a unit price of $6.50 for quantity 1. You can also check Octopart for multiple distributor options.

What is the price of L6470HTR?

As of 2026-08-06, the L6470HTR is priced at $6.50 for quantity 1, $5.85 for 10, $5.20 for 100, $4.68 for 500, and $4.16 for 1000 units at DigiKey. Prices may vary by distributor and quantity.

What is the lead time for L6470HTR?

The lead time for L6470HTR is typically 1-2 weeks from major distributors like DigiKey and Mouser, depending on stock availability. As of 2026-08-06, it is in stock at DigiKey, so immediate shipment is possible.

Is L6470HTR in stock?

Yes, as of 2026-08-06, the L6470HTR is in stock at DigiKey and Mouser. You can check real-time availability on their websites.

L6470HTR vs L6472HTR - which is better for a 3D printer?

For a 3D printer, the L6470HTR is generally better because it supports up to 3 A peak current, while the L6472HTR supports only 1.5 A. If your stepper motor requires more than 1.5 A, choose the L6470HTR. Both are pin-compatible in the HTSSOP28 package.

When should I choose L6470HTR over L6472HTR?

Choose the L6470HTR when you need higher output current (up to 3 A peak) for larger stepper motors. Choose the L6472HTR if your application requires lower current (up to 1.5 A) and you want to reduce cost, as the L6472HTR is typically cheaper.

Can L6472HTR replace L6470HTR?

Yes, the L6472HTR can replace the L6470HTR in applications where the peak current does not exceed 1.5 A. Both are pin-compatible in the HTSSOP28 package, but the L6472HTR has a lower current rating, so it is not a drop-in replacement for high-current applications.

Where to download L6470HTR datasheet PDF?

You can download the L6470HTR datasheet PDF from the STMicroelectronics website at https://www.st.com/resource/en/datasheet/l6470.pdf. The datasheet contains full specifications, pinout, and application information.

Where to find L6470HTR pinout?

The L6470HTR pinout is provided in the datasheet, which is available at https://www.st.com/resource/en/datasheet/l6470.pdf. The HTSSOP28 package has 28 pins, including power supply, motor outputs, SPI interface, and control pins.

Hey Google, what can replace L6470HTR?

The L6470HTR can be replaced by the L6472HTR from STMicroelectronics, which is pin-compatible in the HTSSOP28 package but has a lower current rating (1.5 A vs 3 A). For a cross-brand alternative, consider the DRV8825 from Texas Instruments, but it is not pin-compatible and requires PCB changes.

Is L6470HTR the same as L6470PD?

No, the L6470HTR and L6470PD are not the same. They have identical electrical specifications, but the L6470HTR is in a HTSSOP28 package, while the L6470PD is in a PowerSO-28 package. They are not pin-compatible and cannot be used as drop-in replacements for each other.

What are the key specifications of L6470HTR that engineers should know?

The L6470HTR is a stepper motor driver with a supply voltage range of 8 V to 45 V, peak output current of 3 A per phase, and microstepping up to 1/128 step. It uses a SPI interface, has adaptive current decay, and includes overcurrent, overtemperature, and undervoltage protection. It is available in a HTSSOP28 package.

What is the best STMicroelectronics equivalent for L6470HTR?

The best STMicroelectronics equivalent for L6470HTR is the L6472HTR, which is pin-compatible in the HTSSOP28 package but has a lower current rating (1.5 A vs 3 A). For higher current, the L6470PD is electrically equivalent but in a different package.

Engineering reference data for L6470HTR — comparison, design guidance, and compliance information.

Selection Guide

Choose the L6470HTR when you need a high-current (up to 3 A) stepper motor driver with SPI control and advanced microstepping (up to 1/128). It is ideal for applications like 3D printers, CNC machines, and robotics where precision and torque are important. If your application requires lower current (up to 1.5 A) and you want to reduce cost, consider the L6472HTR, which is pin-compatible. For a cross-brand alternative with a simpler step/dir interface, the DRV8825 is a cost-effective option, but it lacks SPI control and has lower microstepping resolution. The L6470PD is electrically identical but in a different package, so it is not a drop-in replacement. Always verify pin compatibility and electrical specifications before substituting.

Comparison with Alternatives

Parameter	This Product	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

Key Differentiators

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)

Design Notes

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.