STMicroelectronics L99DZ200G Door Zone Systems IC

STMicroelectronics L99DZ200G Door Zone Systems IC supplies electronic control modules with enhanced power management-power supply functionality. This includes various standby modes with LIN and HS CAN physical communication layers.

The STMicroelectronics L99DZ200G IC features two low-drop voltage regulators that supply the system microcontroller and external peripheral loads and provide enhanced system standby functionality with programmable local and remote wake-up capability. Additionally, five high-side drivers supply LEDs, and two high-side drivers supply bulbs increasing the system integration level. Three high side drivers are configured to support the so-called Constant Current mode conceived to supply external LED modules with huge decoupling capacitors. The device can drive up to three DC motors and eight external MOS transistors (four for each of the two H-bridges) in an H-bridge configuration. Adding another gate drive can control an external MOSFET in a high-side configuration to supply a resistive load connected to GND (e.g., mirror heater).

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.

The STMicroelectronics L99DZ200G Door Zone Systems IC is available in an LQFP-64 package. All parameters of this device are guaranteed in the -40°C to 150°C junction temperature range. The device is still operative and functional at higher temperatures up to 175°C.

Features

AEC-Q100 qualified
2 configurable half bridges for 7.5A load (R_ON = 150Ω) or 3A load (R_ON = 300Ω)
2 half bridges for 0.5 A load (R_ON = 2000Ω)
1 configurable high-side driver for up to 1.5A (R_ON = 500Ω) or 0.35A (R_ON = 1600Ω) load
1 configurable high-side driver for 0.7A (R_ON = 800Ω) or 0.35A (R_ON = 1600Ω) load
3 configurable high-side drivers for 0.15A/0.35A (R_ON =2Ω)
1 configurable high-side driver for 0.25A/0.5A (R_ON = 2Ω) to supply EC Glass MOSFET
1 configurable P-channel high-side drivers for 0.15A/0.25A (R_ON = 5Ω)
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 a 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
Two fully protected drivers for external MOSFETs in H-bridge configuration, dual Half-bridge configuration, and combined configuration to drive
Three motors
Fully protected driver for external high-side MOSFET
Control block for electrochromic element
One 5V voltage regulator for microcontroller supply
One 5V 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 = 1Ω) 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