STMicroelectronics STSPIN9P1 75V Advanced Motor Drivers

The STMicroelectronics STSPIN9P1 includes pin-to-pin compatible half-bridge devices. Components in the STSPIN9P1 differ in R_DS(ON), driving mode, and control features to enable the adoption of a tailored solution for each specific application. Despite the device's topological simplicity, each integrates a wide set of functional blocks and advanced features. All versions incorporate regulators, making the device fully self-supplied. A charge pump allows for unlimited high-side on time.

The integrated AFE, composed of a differential amplifier and a comparator, is designed to amplify the signal from a shunt resistor and compare it to a reference. In cases where versions with an integrated current limiter are used, the comparator output is used to implement a fixed off-time or a PWM trimming control strategy; otherwise, it is only available for the application on the COUT open-drain output.

All devices in the STSPIN9P1 family feature an adjustable slew rate, enabling optimization of the EMI/efficiency trade-off. This capability improves overall performance and accelerates customer design qualification. The devices are also fully protected thanks to UVLO (overcurrent protection and thermal shutdown). Additionally, open-load detection verifies proper motor connection when the power stage is disabled, providing dedicated signaling on the nOL output. The STSPIN9P1 products come in a compact 7mm x 7mm QFN package.