L99DZ120TR

Ic Auto Door Actuator 64lqfp

The L99DZ120 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 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 3 DC motors and 4 external MOS transistors in H-bridge configuration can be driven. 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 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 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

.

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

.

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

.

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