ST L9301-TR

The L9301 is a SPI (Serial Peripheral Interface) controlled octal channel with 4 high/low and 4 low side drivers with the possibility to use four integrated PowerMOS as recirculation diodes for PWM load driving. L9301 contains 12 PowerMOS: 4 configurable High/Low side drivers with Ronmax = 0.6 Ω (DRN1 - 4, SRC1 - 4), 4 low side drivers with Ronmax = 0.6 Ω (OUT1 - 4) and 4 low side drivers with Ronmax = 0.3 Ω (OUT5 - 8). The power DRN/SRC1 - 4 and OUT1 - 4 can be connected in parallel outside the device in order to get 4 low - side drivers with Ronmax = 0.3 Ω: DRN1//DRN2, DRN3//DRN4, OUT1//OUT2, OUT3//OUT4. In this way there is a total of 8 LS channels for ON - OFF mode with Ronmax = 0.3 Ω. There is also the possibility to connect the OUT1 - 4 and OUT5 - 8 in order to drive in PWM mode a load connected to VB or GND without the necessity of a freewheeling diode. In this case the Ronmax = 0.6 Ω. The above configuration can be driven by parallel input or SPI command. Through the SPI it is possible to configure the device parameters like configuration, Slew - rate, Overcurrent threshold, to send the drivers commands and to read back the diagnosis results.

• AEC - Q100 qualified
• Eight integrated PowerMOS configurable as:
  • 8 low side ON - OFF with RON(max)=0.3 Ω @ Tj = 175 ℃
  • High/low side PWM with RON(max)=0.6 Ω @ Tj = 175 ℃ and 4 Low side with RON(max)=0.3 Ω @ Tj = 175 ℃
• Operating battery supply voltage 5 V to 18 V
• Operating Vdd supply voltage 4.75 V to 5.25 V
• Logic inputs TTL/CMOS - compatible
• Output voltage clamping 37 V typ. in low - side configuration
• SPI interface for outputs control and for diagnosis data communication
• Additional PWM inputs for 8 outputs
• Over temperature protection
• Open load, short to GND, short to VB
• Overcurrent diagnostics in latched or unlatched mode for each channel
• Controlled SR for improved EMC behavior

• Automotive electronic systems
• Load driving
• PWM control