L9733XP STMicroelectronics

L9733 Automotive octal self configuring low/high side driver Datasheet - production data Controlled SR for reduced EMC Description The L9733 is a highly flexible monolithic, medium current, output driver that incorporates 8 outputs 3RZHU662 that can be used as either internal low or high-side * 3*36 drives in any combination. Outputs 1-8 are self-configuring as high or low- Features side drives. Self-configuration allows a user to connect a high or low-side load to any of these AEC-Q100 (Rev. F) qualified outputs and the L9733 will drive them correctly as Eight independently self configuring low/high well as provide proper fault mode operation with drivers no other needed inputs. In addition, outputs 6, 7 and Supply voltage from 4.5 V to 5.5 V 8 can be PWM controlled via a external pins (IN6-8). R = 0.7 T = 25 C, ON(max) j This device is capable of switching variable load R = 1.2 T = 125 C ON(max) j currents over the ambient range of -40 C to +125 C. The outputs are MOSFET drivers to Minimum current limit of each output 1 A minimize Vdd current requirements. For low-side Output voltage clamping min. 40 V in low-side configured outputs an internal zener clamp from configuration the drain to gate with a breakdown of 50 V Output voltage clamping max. -14 V in high-side minimum will provide fast turn off of inductive configuration loads. When a high-side configured output is commanded Off after having been commanded SPI interface for outputs control and for On, the source voltage will go to (VGND - 15 V). diagnosis data communication Additional PWM inputs for 3 outputs An 16 bit SPI input is used to command the 8 output drivers eitherO orOf, reducing the Independent thermal shutdown for all outputs I/O port requirement of the microcontroller. open load, short to GND, short to Vb, Multiple L9733 can be daisy-chained. In addition overcurrent diagnostics in latched or unlatched the SPI output indicates latched fault conditions mode for each channel that may have occurred. Internal charge pump without need of external capacitor Table 1. Device summary Order code Package Packing L9733XP PowerSSO-28 (Exposed pad) Tube L9733XPTR PowerSSO-28 (Exposed pad) Tape and reel L9733CN PowerSSO-28 (Exposed pad) Tube L9733CNTR PowerSSO-28 (Exposed pad) Tape and reel May 2016 DocID11319 Rev 12 1/35 This is information on a product in full production. www.st.comContents L9733 Contents 1 Pin description . 6 2 Operating conditions 8 2.1 Operating range . 8 2.1.1 Functional operative range . 8 2.1.2 Jump start conditions 8 2.1.3 Operation at low battery condition 9 2.1.4 Operation at load dump condition 9 2.1.5 Loss of protection against short to battery 9 2.2 Absolute maximum ratings . 9 2.3 Thermal data 10 3 Electrical performance characteristics . 11 3.1 DC characteristics 11 3.2 AC characteristics . 14 3.3 SPI characteristics and timings 16 4 Functional description 18 4.1 Configurations for outputs 1-8 . 18 4.1.1 Low-side drivers . 18 4.1.2 High-side drivers 18 4.2 Outputs 1-5 18 4.3 Outputs 6-8 19 4.4 Drn1-8 susceptibility to negative voltage transients . 19 4.5 Supply pins 19 4.5.1 Main power input (Vdd) . 19 4.5.2 Battery supply (Vbat) . 19 4.5.3 Discrete inputs voltage supply (VDO) 19 4.6 Discrete inputs . 20 4.6.1 Output 6-8 enable input (In6, ln7, ln8) 20 4.6.2 Reset input (RES) . 20 5 Serial peripheral interface (SPI) . 21 2/35 DocID11319 Rev 12