VN9D5D20FN 4-Channel High-Side Driver with 24-bit SPI

The VN9D5D20FN 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 the V_CC pin. Programming, control, and diagnostics are implemented via the SPI bus. Digital current sense feedback for each channel is provided through an integrated 10-bit ADC with 0.1% of FSR. Dedicated trimming bits allow adjusting the ADC reference current. The device is equipped with four outputs controllable via SPI or with the 2-OTP assignable direct inputs. The device detects open-load in OFF-state conditions. Real time diagnostic is available through the SPI bus (open-load, output short to V_CC, overtemperature, communication error, power limitation, or latch off). Output current limitation protects the device in an overload 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 (V_DD), reset of digital memory, or watchdog monitoring time-out event. In limp home mode, each output is set according to the programmed register to be always OFF or according to the 2x direct inputs pins.

Features

• AEC-Q100 qualified
• Extreme low voltage operation for deep cold cranking applications (compliant with LV124, revision 2013)
• 24-bit ST-SPI for full diagnostic and digital current sense feedback
• Integrated 10-bit ADC for digital current sense
• Integrated PWM engine with independent phase shift and frequency generation (for each channel)
• Programmable bulb/LED mode for all channels
• Advanced limp home functions for robust fail-safe system
• Very low standby current
• Optimized electromagnetic emissions
• Very low electromagnetic susceptibility
• Control through direct inputs, SPI or both
• Compliant with European Directive 2002/95/EC
• Digital proportional load current sense
• Synchronous diagnostic of overload and short to GND, output shorted to V_CC and OFF-state open-load
• Programmable case overtemperature warning
• 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