Description
The VNQ7003SY is a device made using
STMicroelectronics® VIPower® technology. It is
intended for driving resistive or inductive loads
directly connected to ground. The device is
protected against voltage transient on VCC pin.
An 8 bit short frame access to output control
registers is provided allowing PWM control
through SPI with high granularity.
An analog current feedback for each channel is
connected to the CURRENT-SENSE pin via a
multiplexer. The device detects open-load in OFFstate conditions.
Real time diagnostic is available through the SPI
bus (open-load, output short to VCC,
overtemperature, communication error, power
limitation or latch off).
Output current limitation protects the device in an
over load condition. The device can limit the
dissipated power to a safe level up to thermal
shutdown intervention. Thermal shutdown can be
configured as latched off or programmable time
limited auto restart.
The device enters a limp home mode in case of
loss of digital supply (VDD), reset of digital
memory or watchdog monitoring time-out event.
In this mode states of channel 0, 1, 2 or 3 are
respectively controlled by four dedicated pins IN0,
IN1, IN2 and IN3. Channel 0 and 1 can be
programmed via SPI for load type (BULB/ LED
mode).

Features
 AEC-Q100 qualified
 General
– 16-bit ST-SPI for full diagnostic with 8 bits
Short Frame option
– Programmable Bulb/LED mode for
ch. 0-1
– Advanced limp home functions for robust
fail-safe system
– Very low standby current
– Optimized electromagnetic emissions
– Very low electromagnetic susceptibility
– Control through direct inputs and / or SPI
– Compliant with European directive
2002/95/EC
 Diagnostic functions
– Multiplex proportional load current sense
– Synchronous diagnostic of over load and
short to GND, output shorted to VCC and
OFF-state open-load
– Programmable case overtemperature
warning
 Protection
– Two levels load current limitation
– Self limiting of fast thermal transients
– Undervoltage shutdown
– Overvoltage clamp
– Latch-off or programmable time limited
auto restart (power limitation and
overtemperature shutdown)
– Load dump protected
– Protection against loss of ground