STMicroelectronics L9958 H-Bridge DC-Motor Drivers
STMicroelectronics L9958 H-bridge DC-motor drivers are SPI-controlled devices designed for the control of DC and stepper motors in safety-critical applications and under extreme environmental conditions. STMicroelectronics L9958 H-Bridge DC-motor drivers are protected against over temperature and short circuits. And they have an under-voltage lockout for all the supply voltages VS and VDD and for overvoltage on VDD. All malfunctions cause the output stages to go tristate. The L9958 features a programmable current regulation peak threshold by SPI up to 8.6A typical. The operating battery supply voltage of these STMicroelectronics motor drivers is 4.0V to 28V while the operating VDD supply voltage is 4.5V to 5.5V. These H-bridge drivers are available in three power packages: PowerSO-20, PowerSO-16, and PowerSSO-24.
Features
- Programmable current regulation peak threshold by SPI up to 8.6A typ.
- Operating battery supply voltage 4.0V to 28V
- Operating VDD supply voltage 4.5V to 5.5V
- All pins withstand 19V, Vs and output pins withstand 40V
- Full path RON from 100mΩ (at TJ=-40°C) to 300mΩ (at TJ=150°C)
- Logic inputs TTL/CMOS-compatible
- Operating frequency up to 20kHz
- 16-bit SPI interface for configuration/diagnostics, daisy chain capability
- Over-temperature and short circuit protection
- VS undervoltage disable function
- VDD undervoltage and overvoltage protection
- VDD overvoltage detection
- Open-load detection in ON condition
- Full diagnostics in OFF state
- Enable and disable input
- Low stand by current (<10μA)
- Voltage and current slew-rate control for low EMI, programmable through SPI
- Available in three power packages: PowerSO-20 (L9958), PowerSO-16 (L9958SB), and PowerSSO-24 (L9958XP)
Applications
- DC and Stepper Motors in Safety-Critical Applications and Under Extreme Environmental Conditions
L9958 Block Diagram
Published: 2011-11-11
| Updated: 2022-03-11