L9969U中文资料Automotive chip for single and dual H-bridge数据手册ST规格书

描述 Description

L9969S/L9969U and L9969T are single and dual integrated H-bridges for resistive and inductive loads featuring output current direction and supervising functions.

The PowerSSO24 houses one full H-bridge, while the PowerSSO36 houses both two H-bridges that can work in parallel, through independent input driving commands.

Target application ranges from throttle control actuators to exhaust gas recirculation control valves in automotive domain to a more general use to drive DC and Stepper motors.

特性 Features

• AEC-Q100 qualified
• Full path RDS(on) less than 540 mΩ
• Nominal continuous load current > 3 A
• Operating battery supply voltage 4.5 V to 28 V
• Operating VDD supply voltage 4.5 V to 5.5 V
• All ECU internal pins can withstand up to 18 V
• Output switching frequency up to 20 kHz
• Monitoring of VDD supply voltage including bidirectional switch-off pin NABE
• Overtemperature and short-circuit protection
• Full diagnosis capability
• Output stage with SPI-adjustable current limitation 5-8.6 A in 3 steps (two-point regulation)
• Fast switch-off open-drain input/output
• Current-monitoring with current feedback output signal CF
• Reliable full diagnostic capability
• Settable chip-address via bond-wire configuration on the silicon or E-Fuse
• SPI-interface for configuration and diagnosis
• Error history in diagnosis register
• Two independent enable pins: \"NABE\" and \"DIS\"
• Control of power stages by SPI or two input signals, PWM and DIR (configurable via SPI)
• Logic levels 5 V compatible
• Conformity to improved EMC requirements due to smart H-bridge switching
• Full ISO 26262 compliant, ASIL-B (D) systems ready