IC L9958XP is a high‑side/low‑side motor driver (H‑bridge) integrated circuit made by STMicroelectronics, designed for automotive and industrial power switching applications. It’s not a standard logic IC but a motor/actuator driver with built‑in control and diagnostics. 

🔧 What L9958XP Is

• Part number: L9958XP

• Category: Motor / motion / ignition controllers & drivers — H‑bridge driver IC

• Manufacturer: STMicroelectronics

• Package: PowerSSO‑24 surface‑mount device with 24 pins

• Interface: SPI (Serial Peripheral Interface) to control configuration and read diagnostics from the chip

• Supply voltage range: ~4.0 V to 28 V (battery‑level supply), logic side 4.5 V‑5.5 V

• Output current: up to about 8.6 A (programmable)

• Operating temperature: −40 °C to +125 °C (typical automotive