L99PD08TR STMicroelectronics

L99PD08 SPI control diagnosis interface device for VIPower M0-5 and M0-5E high side drivers Features 8 channel VIPower driver and diagnostics device Supports analog and digital VIPower status readback 8 independent PWM channels Selectable PWM base clock (2 external, one internal) LQFP32 Programmable PWM turn on phase shift Programmable diagnostic thresholds (analog Description VIPower) The device has integrated several functions which Programmable over temperature latch off for save job load of the microcontroller and save enhanced HSD short circuit reliability necessary connections to the microcontroller. Its Limp home safety mode possible to connect analog and digital high side ST-SPI interface protocol for data drivers (HSD) to the device and control them via communication SPI interface. A synchronous detailed diagnostics feature is integrated. External enable pin for low power mode Detailed and filtered diagnostic for each The device has 8 outputs to the HSD with the channel possibility to be driven either by steady state ON/OFF mode or by PWM. Two clock inputs used Direct multiplexed VIPower status / current as base frequency to generate the PWM signal sense feedback internally are provided. The outputs are fully Supply voltage 3.3 or 5.0 V (two pins) independent and can also be driven with phase shift to improve characteristics of power net Applications during the inrush phase. The device has 8 current sense (CS)/status (ST) pins connected to the Exterior and interior automotive light system HSD to run diagnostics. The index of ST/CS pin corresponds to the input connected to the same HSD channel (ST0/CS0 with OUT0, ST1/CS1 with OUT1 ). Table 1. Summary device Order codes Package Tube Tape and reel LQFP32 L99PD08 L99PD08TR September 2013 Doc ID 15872 Rev 4 1/41 www.st.com 1Contents L99PD08 Contents 1 Block diagram 6 2 Pin definitions and functions . 7 2.1 ST-SPI: SCK, SDI, SDO, CSN 8 2.2 CLK IN0, CLK IN1 8 2.3 LHOMEN 9 2.4 Output 0 to 7 (OUT0 OUT7) . 9 2.5 Status/current sense inputs (ST0/CS0 ST7/CS7) . 9 2.6 Multiplexed status/current sense output (MUX ST/CS) . 9 2.7 VDDIO, VCORE3 9 2.7.1 5.0 volt operation 10 2.7.2 3.3 volt operation 10 2.8 GND (2 pins) 10 2.9 Faultn 10 2.10 SYNC 10 2.11 EN 11 3 Device mode 12 4 Absolute maximum ratings 14 4.1 ESD protection . 14 4.2 Operating junction temperature 14 5 Electrical characteristics 15 6 SPI . 22 6.1 SPI timing parameter definition 23 6.2 Functional description of the SPI . 23 6.2.1 Serial clock (SCK) . 24 6.2.2 Serial data input (SDI) . 25 6.2.3 Serial data output (SDO) . 25 6.2.4 Chip select not (CSN) 25 6.3 SPI communication flow 25 2/41 Doc ID 15872 Rev 4