L9658中文资料用于安全应用的四通道发火管驱动器和双通道传感器接口ASIC数据手册ST规格书

描述 Description

L9658 is intended to deploy up to 8 squibs and to interface up to 4 satellites. 2 satellite interfaces can be used to interface Hall sensors.

Squib drivers are sized to deploy 1.2 A minimum for 2 ms minimum during load dump and 1.75 A minimum for 1ms minimum during load dump.

Diagnostic of squib driver and squib resistance measurement is controlled by micro controller.

Satellite interfaces support Manchester decoder with variable bit rate.

特性 Features

• 8 deployment drivers sized to deliver 1.2 A (min) for 2 ms (min) and 1.75 A (min) for 1 ms (min)
• Independently controlled high-side and low-side MOS for diagnosis
• Analog output available for resistance
• Squib short to ground, short to battery and MOS diagnostic available on SPI register
• Capability to deploy the squib with 1.2 A (min) or 1.75 A under 35 V load-dump condition and the low side MOS is shorted to ground
• Capability to deploy the squib with 1.2 A (min) at 6.9 V VRES and 1.75 A at 12 V VRES
• Interface with 4 satellite sensors
• Programmable independent current trip points for each satellite channel
• Support Manchester protocol for satellite sensors
• Supports for variable bit rate detection
• Independent current limit and fault timer shutdown protection for each satellite output
• Short to ground and short to battery detection and reporting for each satellite channel
• 5.5 MHz SPI interface
• Satellite message error detection
• Hall effect sensor support on satellite channels 3 and 4.
• Low voltage internal reset
• 2 kV ESD capability on all pins
• Package: 64 leads LQFP
• Technology: ST proprietary BCD5s (0.57 μm)

简介

L9658属于集成电路（IC）的专用IC。由制造生产的L9658专用 IC专用专用集成电路 (IC) 或芯片设计用于执行特定功能。这个类别包括可寻址开关、空芯仪表驱动器、音视频开关、验证芯片、自动放电、时钟发生器、彩色扫描仪，以及各种应用所用的其他许多集成电路。