LV8968BBUW Datasheet Text
LV8968BBUW
Multi-purpose BLDC
Gate-driver for Automotive
Overview The LV8968BB is a 3- phase BLDC/PMSM pre- driver with integrated phase voltage sensing and logic level FET patibility. The wide operating voltage range and AEC- Q100 qualification make this device ideal for automotive applications. Six gate drivers provide 400 mA (typ) gate current to external power bridges allowing use of low resistance power FETs as well as logic level FETs. All FETs are protected against over- current, short- circuit, over- temperature and gate under- voltage. A multitude of protection and monitoring Features make this device suitable for ISO26262 applications. Three independent low- side source pins allow multiple shunt measurement.
The device also includes a programmable linear regulator, a fast current- sense amplifier and a window watchdog for microcontroller support. The SPI interface allows for real time parameter setup and diagnostics. Critical system parameters can be programmed into non- volatile OTP memory.
Junction temperature tolerance up to 175°C and control via wide level WAKE and PWM signals make the LV8968BB an ideal motor pre- driver for automotive applications such as engine cooling fans, fuel, oil, and hydraulic pumps.
Features
- Full Drive Power from 8 V to 28 V Supply Voltage with Transient
Tolerance from 4.5 V to 40 V
- Extended Voltage Range from 6 V to 33 V Using Logic- level Mode
- Up to 30 kHz Motor PWM with Individual Six Gate Control or
Drive- 3 Mode with Integrated Programmable Dead- Time
- 5 V / 3.3 V Linear Regulator for External Loads up to 50 mA
- Extensive System Protection Features
Including:
- Drain- Source Short Detection for External FET
- Over- current Shutoff
- Low Gate Voltage Warning
- Over- temperature Warning and Shutoff
- Over / Under- voltage...