Door Actuator driver with embedded LIN

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


Publications and Collaterals

Description Version Size
L99DZ8x Family 1.0 721 KB
Selection Guides
Description Version Size
Smart power solutions for car body applications 4.0 3 MB
Description Version Size
Advanced door electronics solutions 1.0 696 KB

Technical Documentation

Product Specifications
Description Version Size
DS11567 DS11567: Automotive door actuator driver with embedded LIN 4.0 2 MB
Support & Community

Sample & Buy

Part Number Package Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
L99DZ120TR TQFP 64 10x10x1.4 Tape And Reel - - Active 4.336 1000 NEC EAR99 - MORE INFO DISTRIBUTOR AVAILABILITY
L99DZ120 TQFP 64 10x10x1.4 Tray - - Active 4.336 1000 NEC EAR99 - MORE INFO

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L99DZ120TR ActiveTQFP 64 10x10x1.4AutomotiveEcopack2 0 0
L99DZ120 ActiveTQFP 64 10x10x1.4AutomotiveEcopack2 0 0

(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.