The L99DZ100G and L99DZ100GP are 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 8 high-side drivers to supply LEDs, 2 high-side drivers to supply bulbs increase the system integration level.
Up to 5 DC motors and 4 external MOS transistors 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.
**Key Features**
AEC Q100 compliant qualified
1 half bridge for 7.5 A load (RON = 100 mΩ)
1 half bridge for 7.5 A load (RON = 150 mΩ)
2 half bridges for 0.5 A load (RON = 2000 mΩ)
2 half bridges for 3 A load (RON = 300 mΩ)
1 configurable high-side driver for up to 1.5 A (RON = 500 mΩ) or 0.35 A (RON = 1600 mΩ) load
1 configurable high-side driver for 0.8 A (RON = 800 mΩ) or 0.35 A (RON = 1600 mΩ) load
3 configurable high-side drivers for 0.15 A/0.35 A (RON =2 Ω)
1 configurable high-side driver for 0.25 A/0.5 A (RON = 2 Ω) to supply EC Glass MOSFET
4 configurable high-side drivers for 0.15 A/0.25 A (RON = 5 Ω)
Internal 10bit PWM timer for each stand-alone high-side driver
Buffered supply for voltage regulators and 2 high-side drivers (OUT15 & OUT_HS / both 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, OUT7, OUT8 and OUT_HS) with thermal expiration feature
All the embedded outputs come with protection and supervision features:
Current Monitor (high-side only)
Open-load
Overcurrent
Thermal warning
Thermal shutdown
Fully protected driver for external MOSFETs in H-bridge configuration or dual Half bridge configuration
Fully protected driver for external high-side MOSFET
Control block for electro-chromic element
Two 5 V voltage regulators for microcontroller and peripheral supply
Programmable reset generator for power-on and undervoltage
Configurable window watchdog
LIN 2.2a compliant (SAEJ2602 compatible) transceiver
Advanced high speed CAN transceiver (ISO 11898-2:2003 /-5:2007 and SAE J2284 compliant) with local failure and bus failure diagnosis and selective wake-up functionality according to ISO 11898-6:2013
Separated (Isolated) fail-safe block with 2 LS (RON = 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
