L99PD08 Datasheet, PDF (1/41 Pages) STMicroelectronics – SPI control diagnosis interface device for VIPower M0-5 and M0-5E high side drivers

L99PD08
SPI control diagnosis interface device for
VIPower™ M0-5 and M0-5E high side drivers
Features
I 8 channel VIPower driver and diagnostics
device
I Supports analog and digital VIPower status
readback
I 8 independent PWM channels
I Selectable PWM base clock (2 external, one
internal)
I Programmable PWM turn on phase shift
I Programmable diagnostic thresholds (analog
VIPower)
I Programmable over temperature latch off for
enhanced HSD short circuit reliability
I Limp home safety mode
I ST-SPI interface protocol for data
communication
I External enable pin for low power mode
I Detailed and filtered diagnostic for each
channel
I Direct multiplexed VIPower status / current
sense feedback
I Supply voltage 3.3 or 5.0 V (two pins)
Applications
I Exterior and interior automotive light system
LQFP32
Description
The device has integrated several functions which
save job load of the microcontroller and save
necessary connections to the microcontroller. It’s
possible to connect analog and digital high side
drivers (HSD) to the device and control them via
SPI interface. A synchronous detailed diagnostics
feature is integrated.
The device has 8 outputs to the HSD with the
possibility to be driven either by steady state
ON/OFF mode or by PWM. Two clock inputs used
as base frequency to generate the PWM signal
internally are provided. The outputs are fully
independent and can also be driven with phase
shift to improve characteristics of power net
during the inrush phase. The device has 8 current
sense (CS)/status (ST) pins connected to the
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
Package
LQFP32
April 2010
Tube
L99PD08
Order codes
Tape and reel
L99PD08TR
Doc ID 15872 Rev 3
1/41
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