Supports front-drive-rear configuration, reduces parts cost and development time

STMicroelectronics (hereinafter ST) accelerates the integration of automotive body electronics with a single IC.

ST announced on the 14th that it is launching the L99DZ200G, a Door-Zone system IC.

The L99DZ200G supports a Front-Drives-Rear configuration with a single chip, allowing control of both front windows, mirrors, lights, and the rear window lift.

These features provide various benefits, such as reduced system standby current, improved reliability, faster assembly speed, reduced Bill of Materials (BoM), and shortened development time.

The L99DZ200G includes two H-bridge gate drivers, a gate driver for an external MOSFET controlling the mirror heating element, a high-side driver and control block for Electro-Chromic Mirror (ECM) dimming, and five high-side drivers capable of LED control.

Three of the high-side drivers can operate in constant current mode, allowing them to supply power to lighting modules with high input capacitance. The other two high-side drivers are suitable for general LED control.

The L99DZ200G, equipped with two H-bridge drivers, can control two spindle motors simultaneously and additionally control a cinch motor to close the power tailgate or power trunk.

Both drivers can operate in generator mode to simultaneously activate the low-side MOSFET to protect the device when overvoltage is detected on the power rail.

The L99DZ200G also provides power management capabilities with two 5V LDO (Low-Dropout) regulators for the host microcontroller and peripherals.

For control and communication connectivity, it is equipped with a LIN 2.2a (SAEJ2602, SAE J2962-1) transceiver, a high-speed CAN (HS-CAN, ISO 11898-2:2003 /-5:2007, SAE J2284, SAE J2962-2) transceiver, and an SPI 4.0 interface.

Diagnostic and protection functions include temperature monitoring and thermal protection, as well as a dedicated failsafe block for gate pull-down of an external high-side MOSFET and open load and overcurrent detection functions for all outputs.

In addition, a current monitoring output pin is provided for each high-side channel. In Overcurrent Recovery and Thermal Expiration modes, operation can be automatically resumed after overcurrent protection operation.

In addition to reverse voltage protection, it is also equipped with system safety features including a configurable Windows watchdog and a reset generator.

The AEC-Q100 certified L99DZ200G is currently in production in a 10mm x 10mm LQFP64 package and is priced at $4.2 for a purchase of 1,000 units.