L9301-TR

Power Switch Hi Side/Lo Side 8Out 0.3Ω Automotive 36Pin PowerSSO EP T/R

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 are 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.

**Key Features**

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Eight integrated PowerMOS configurable as:

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8 low side ON-OFF with RONmax = 0.3 Ω @ Tj = 175 °C

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High/low side PWM with RONmax = 0.6 Ω @ Tj = 175 °C and 4 Low side with RONmax = 0.3 Ω @ Tj = 175 °C

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Operating battery supply voltage 5 V to 18 V

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Operating Vdd supply voltage 4.75 V to 5.25 V

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Logic inputs TTL/CMOS-compatible

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Output voltage clamping 37 V typ. in low-side configuration

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SPI interface for outputs control and for diagnosis data communication

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Additional PWM inputs for 8 outputs

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Over temperature protection

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Open load, short to GND, short to VB

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Overcurrent diagnostics in latched or unlatched mode for each channel

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Controlled SR for improved EMC behavior