Overview
The STSPIN840 is a compact brushed DC motor driver designed by STMicroelectronics. It is capable of driving two bi-directional brushed DC motors simultaneously. This device integrates both the control logic and a fully protected low RDSon dual full-bridge power stage within a small 4 x 4 mm QFN package. The STSPIN840 features a dedicated PARALLEL input pin that enables parallel mode, transforming the device into an equivalent and more powerful single full-bridge capable of delivering up to 3 Arms current.
Key Specifications
| Specification | Value |
|---|---|
| Operating Voltage | 7 to 45 V |
| Maximum Output Current | 1.5 Arms per motor |
| RDSon (HS + LS) | 1 Ω typ. |
| Package | TFQFPN 24L 4X4X1.05 |
| Operating Temperature | -40 to 150°C |
| RoHS Compliance Grade | Ecopack2 |
Key Features
- Current control with adjustable OFF time
- Current sensing based on external shunt resistors
- Full protection set including non-dissipative overcurrent, short-circuit, undervoltage lockout, and thermal shutdown
- Parallel operation mode achieving single full-bridge configuration with output IRMS = 3 Arms and RDSon (HS + LS) = 500 mΩ typ.
- Low standby current consumption (less than 45 μA)
- Compatible with Arduino UNO R3 connector and most STM32 Nucleo boards (via X-NUCLEO-IHM15A1 expansion board)
Applications
The STSPIN840 is suitable for various applications, including:
- Industrial automation
- Personal electronics
- Thermal printers
- Robotics
- Toys and other consumer devices
Q & A
- What is the STSPIN840?
The STSPIN840 is a compact brushed DC motor driver capable of driving two bi-directional brushed DC motors simultaneously.
- What is the operating voltage range of the STSPIN840?
The operating voltage range is from 7 to 45 V.
- What is the maximum output current of the STSPIN840?
The maximum output current is 1.5 Arms per motor.
- What protections does the STSPIN840 include?
The STSPIN840 includes non-dissipative overcurrent, short-circuit, undervoltage lockout, and thermal shutdown protections.
- Can the STSPIN840 operate in parallel mode?
Yes, the STSPIN840 can operate in parallel mode, achieving a single full-bridge configuration with increased current capability.
- What is the typical RDSon value for the STSPIN840?
The typical RDSon (HS + LS) value is 1 Ω.
- What is the standby current consumption of the STSPIN840?
The standby current consumption is less than 45 μA.
- Is the STSPIN840 compatible with other development boards?
Yes, it is compatible with Arduino UNO R3 connector and most STM32 Nucleo boards via the X-NUCLEO-IHM15A1 expansion board.
- What are some common applications for the STSPIN840?
Common applications include industrial automation, personal electronics, thermal printers, robotics, and toys.
- What is the operating temperature range of the STSPIN840?
The operating temperature range is from -40 to 150°C.
