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VNQ6040S-E：Quad-channel high-side driver

The VNQ6040S-E 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 V_CCpin.

Programming, control and diagnostics are implemented via the SPI bus.

An analog current feedback for each channel is connected to the CURRENT-SENSE pin via a multiplexer. A CS_SYNC pin delivers a synchronous signal for sampling the current sense while the corresponding output is on.

The device detects open-load for both on-state and off-state conditions.

Real time diagnostic is available through the SPI bus (open-load, output short to V_CC, overtemperature, communication error).

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 with automatic restart.

The device enters a limp home mode in case of loss of digital supply (V_DD), reset of digital memory or CSN 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. Each channel can be programmed in BULB/LED mode.

Key Features

• General
  • 16 bit ST-SPI for full and diagnostic
  • Programmable BULB/LED mode
  • Integrated PWM and phase shift generation unit
  • 160 Hz internal PWM fallback frequency
  • Advanced limp home functionalities for robust fail-safe system
  • Very low standby current
  • Optimized electromagnetic emissions
  • Very low electromagnetic susceptibility
  • In compliance with the 2002/95/EC
• Diagnostic
  • Multiplex proportional load current sense
  • Synchronous diagnostic of overload and short to GND, output shorted to VCC , ON-state and OFF-state open-load
  • Programmable case overtemperature warning
• Protections
  • Load current limitation
  • Self limiting of fast thermal transients
  • Power limitation and overtemperature shutdown (latching off or autorestart)
  • Undervoltage shutdown
  • Overvoltage clamp
  • Reverse battery protected through power outputs self turn-on (no external components)
  • Load dump protected
  • Protection against loss of ground

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