The L9390 is a twelve output low side valve driver designed for use in an ABS/ESP vehicle system. All outputs are PWM configurable, while six out of twelve are current regulated. Each of the twelve outputs is open drain configured and has a built-in 35V clamp. Eight of the twelve have integrated active freewheeling diodes for active rectification of the PWM controlled load. In order to minimize electromagnetic emissions during load actuation, the possibility to control output slopes is provided. Two separate communication interfaces support SPI communication for configuration and diagnostics.
The L9390 is a twelve output low side valve driver designed for use in an ABS/ESP vehicle system. It features four low side switched output drivers, two low side PWM controlled output drivers with integrated active freewheeling diodes, and six low side current controlled output drivers with integrated active freewheeling diodes. All outputs are open drain configured and have a built-in 35V clamp.
| Number of outputs | Twelve |
|---|---|
| On-resistance (Switched/PWM) | 0.12 Ohms |
| On-resistance (Current controlled) | 0.162 Ohms |
| Current accuracy (Iload < 800mA) | 10% |
| Current accuracy (Iload > 800mA) | 6% |
| Output clamp voltage | 35V |
| Package type | TQFP100 |
| Operating junction temperature | -40 to +150 °C |
It is designed for use in an ABS/ESP vehicle system.
The device includes over current protection, under current detection, open load detection, and more.