STMicroelectronics L99DZ200G

The L99DZ200G is a door zone systems IC providing electronic control modules with enhanced power management power supply functionality, including various standby modes, as well as LIN and HS CAN physical communication layers.

The two low-drop voltage regulators of the devices supply the system microcontroller and external peripheral loads such as sensors and provide enhanced system standby functionality with programmable local and remote wake-up capability. In addition 5 high-side drivers to supply LEDs, 2 high-side drivers to supply bulbs increase the system integration level.

Three High Side drivers can be configured to support the so-called Constant Current mode conceived to supply external LED modules with huge decoupling capacitors.

Up to 3 DC motors and 8 external MOS transistors (4 for each of the 2 H-bridges) in H-bridge configuration can be driven. An additional gate drive can control an external MOSFET in high-side configuration to supply a resistive load connected to GND (e.g. mirror heater). An electro-chromic mirror glass can be controlled using the integrated SPI-driven module in conjunction with an external MOS transistor. All outputs are SC protected and implement an open-load diagnosis.

The ST standard SPI interface (4.0) allows control and diagnosis of the device and enables generic software development.

• AEC-Q100 qualified
• 2 configurable half bridges for 7.5 A load (R_ON = 150 Ω) or 3 A load (R_ON = 300 Ω)
  
• 2 half bridges for 0.5 A load (R_ON = 2000 Ω)
  
• 1 configurable high-side driver for up to 1.5 A (R_ON = 500 Ω) or 0.35 A (R_ON = 1600 Ω) load
  
• 1 configurable high-side driver for 0.7 A (R_ON = 800 Ω) or 0.35 A (R_ON = 1600 Ω) load
  
• 3 configurable high-side drivers for 0.15 A/0.35 A (R_ON =2 Ω)
  
• 1 configurable high-side driver for 0.25 A/0.5 A (R_ON = 2 Ω) to supply EC Glass MOSFET
  
• 1 configurable P-channel high-side drivers for 0.15 A/0.25 A (R_ON = 5 Ω)
  
• Internal 10-bit PWM timer for each stand-alone high-side driver
• Buffered supply for voltage regulators and 1 high-side driver (OUT15 P-channel) to supply e.g. external contacts
• Programmable soft-start function to drive loads with higher inrush currents as current limitation value for OUT1-6 (i.e. motors) and OUT7, OUT8 (i.e. bulbs) with thermal expiration feature
• Flexible HS drivers (OUT7, OUT8 and OUT9) suitable to drive external LED modules with high input capacitance
• All the embedded outputs come with protection and supervision features:
  • Current Monitor (high-side only)
    
  • Open-load and Overcurrent
    
  • Thermal warning and Thermal shutdown
    
• 2 fully protected drivers for external MOSFETs in H-bridge configuration, dual Half bridge configuration and combined configuration to drive 3 motors
• Fully protected driver for external high-side MOSFET
• Control block for electro-chromic element
• One 5 V voltage regulators for microcontroller supply
• One 5 V voltage tracker for peripheral supply
• Programmable reset generator for power-on and under voltage
• Configurable window watchdog
• LIN 2.2a compliant (SAEJ2602 compatible and SAE J2962-1 compliant) transceiver
• Advanced high speed CAN transceiver (ISO 11898-2:2003 /-5:2007 and SAE J2284 and SAE J2962-2 compliant) with local failure and bus failure; HS-CAN Transceiver Conformance Test according to «Interoperability test specification for high-speed CAN transceiver or equivalent devices IOPT.CAN v02d00»
• Separated (Isolated) fail-safe block with 2 LS (R_ON = 1 Ω) to pull down the gates of the external HS MOSFETs
  
• Thermal clusters
• A/D conversion of supply voltages and internal temperature sensors
• Embedded and programmable VS duty cycle adjustment for LED driver outputs
• Generator Mode for Power Trunk/Tailgate applications