L9823中文资料用于灯泡、电阻和电感负载的八通道低侧驱动器，支持串行输入控制、输出保护和诊断数据手册ST规格书

描述 Description

L9823 is a octal low-side driver circuit, dedicated for automotive applications.

Output voltage clamping is provided for flyback current recirculation, when inductive loads are driven.

Chip select and cascadable serial 8-bit Interface for outputs control and diagnostic data transfer.

特性 Features

• Outputs current capability up to 0.5 A
• Cascadable SPI control for outputs
• Reset function with reset signal or undervoltage at VDD
• Programmable intrinsic output voltage clamping at typ. 50 V for inductive switching
• Overcurrent shutdown with latch-off for every write cycle (SFPD = low)
• Independent thermal shutdown of outputs (SOA Protection)
• Output status data available on the SPI using 8-bit I/O protocol up to 3.0 MHz
• Low standby current with reset = low (typ. 35 μA @ VDD)
• Open load detection (outputs off)
• Single VDD logic supply
• High EMS immunity and low EME (controlled output slopes)
• Full functionality of the remaining device at negative voltage drop on outputs (-1.5 V or -3.0 A)
• Output mode programmable for sustained current limit or shutdown