ST L9958SBTR

驱动器 - 全集成，控制和功率级8.6A4.5V ~ 5.5V

Overview

The L9958SBTR is an SPI controlled H-Bridge, designed for the control of DC and stepper motors in safety critical applications and under extreme environmental conditions.

The H-Bridge is protected against over temperature, short circuits and has an undervoltage lockout for all the supply voltages Vsand Vdd, and for overvoltage on Vdd. All malfunctions cause the output stages to go tristate. Detailed failure diagnostics on each channel is provided via SPI: short circuit to battery, short circuit to ground, short circuit overload, over temperature. Open-load can be detected in ON condition, for the widest application ranges. Current regulation threshold can be set by SPI from 2.5 A to 8.6 A (Typ.), in 4 steps. Guaranteed accuracy is ±10 % on all temp range, using an external reference resistor with 1% accuracy over all temp range. Current limitation threshold is linearly reduced by temperature over 165 °C.and a thermal warning bit is set by SPI. The H-Bridge contains integrated free-wheel diodes. In case of free-wheeling condition, the low side transistor is switched on in parallel of its diode to reduce power dissipation. A multiple wire bonding technique, as well as ST proprietary package design is making L9958SBTR compatible with three power packages, for maximum flexibility: PowerSO-20 package (medium power, JEDEC standard MO166);PowerSO16 package (medium power, lower cost);PowerSSO24 package (low power, very low cost JEDEC standard MO271A).

Features

Tape & Reel (TR) Package
Applications : General Purpose
Load voltage across the chip 4V~28V
base on L9958 number
designed with 2 outputs

Surface Mount Mounting Type

Applications

There are a lot of STMicroelectronics
L9958SBTR motor drivers applications.

• Large outdoor LED display
• Commercial office
• Hospitality buildings
• Smart lighting applications
• Automotive applications
• Dome
• Dash
• Footwell lighting
• Indicator
• Telltale lights