Includes PWM control logic, 58V power stage, and two operational amplifiers
Applicable to various applications, such as factory automation systems

STMicroelectronics (hereinafter ST) announced on the 2nd the first two STSPIN9 devices as it launches a high-current motor drive series supporting high-end industrial, home, and professional applications.

ST released the 4.5A STSPIN948 and 5.0A STSPIN95 motor drivers on the 2nd, which feature a wide operating voltage range and flexibility for use in various industrial applications.

These are applicable to factory automation systems, textile machinery, industrial and household robots, stage lighting, ATMs and cash dispensers, antenna controllers, vending machines, and most general household and industrial appliances.

Both drives include PWM control logic and a 58V power stage, as well as two operational amplifiers for system protection and current sensing.

These ICs are suitable for driving brushed DC motors and bipolar stepper motors, providing flexibility and scalability while reducing the Bill of Materials (BoM).

The STSPIN948 features two full bridges that can be configured to operate in different ways, providing developers with the flexibility to drive various rated motors in various configurations.

STSPIN948 is PWM-based current control This 4.5A IC is available in five modes, selectable with a fixed off-time or a programmable threshold, and is provided in a 7mm x 7mm VQFPN48 package.

STSPIN958 includes a single full bridge that can be configured to drive one high-current unidirectional motor, one bidirectional brushed DC motor, or two unidirectional motors by parallelizing the outputs.

This IC supports seven different driving modes, including fixed off-time and programmable current control, dual half-bridge, single full-bridge, and half-bridge parallel connection, and the 5.0A STSPIN958 is available in a 5mm x 5mm VFQFPN32 package.

Both drivers allow designers to maintain the best balance between power consumption and electromagnetic compatibility by using an external resistor to program the slew rate of the output transistor to 0.3V/ns, 0.6V/ns, 1.2V/ns, or 2V/ns.

Dead time is also built in to prevent shoot-through, and the on-resistance of each MOSFET is only 200mΩ, maximizing operating efficiency.

A very short propagation delay of 280ns ensures a fast dynamic response to system commands.

In addition, each IC is equipped with complete protection functions such as overcurrent, overheating, short-circuit protection, low bus voltage detection, and under-voltage lockout (UVLO).

To accelerate such device-based development work, ST provides an economical and easy-to-use evaluation board.

EVSPIN948, which drives up to two motors using STSPIN948, and EVSPIN958, which drives a single motor using STSPIN958, are available evaluation boards. Each board is designed to be used as an expansion card and is compatible with most STM32 Nucleo boards and Arduino® UNO R3 connectors.