Door actuator driver

The L99DZ80EP is a microcontroller driven multifunctional door actuator driver for automotive applications. Up to five DC motors and five grounded resistive loads can be driven with six half bridges and five high-side drivers. Four external MOS transistors in bridge configuration can be driven. An electrochromic mirror glass can be controlled using the integrated SPI-driven module in conjunction with an external MOS transistor. The mirror glass can also be discharged through a negative supply. The integrated SPI controls all operating modes (forward, reverse, brake and high impedance). All diagnostic information is available via SPI read.

Key Features

  • AEC-Q100 qualified
  • One full bridge for 6 A load (RON = 150 mΩ)
  • Two half bridges for 3 A load (RON = 300 mΩ)
  • Two half bridges for 0.5 A load (RON = 1600 mΩ)
  • One high-side driver for 5 A load (RON = 100 mΩ)
  • One configurable high-side driver for up to 1.5 A (RON = 500 mΩ) or 0.35 A (RON = 1600 mΩ) load
  • One configurable high-side driver for 0.7 A (RON = 800 mΩ) or 0.35 A (RON = 1600 mΩ) load
  • Two high-side drivers for 0.5 A load (RON = 1600 mΩ)
  • Programmable softstart function to drive loads with higher inrush currents as current limitation value
  • Very low VS current consumption in standby mode (IS < 6 μA typ; Tj ≤ 85 °C)
  • Current monitor output for all high-side drivers
  • Central two-stage charge pump
  • Motor bridge driver with full Rdson down to 6 V
  • Device contains temperature warning and protection
  • Open-load detection for all outputs
  • Overcurrent protection for all outputs
  • Separated half bridges for door lock motor
  • Programmable PWM control of all outputs
  • STM standard serial peripheral interface (ST-SPI 3.1)
  • Control block for electrochromic element
  • Electrochromic element can be negatively discharged
  • Prepared for additional fail-safe path for H-bridge



Description Version Size
DS7038 DS7038: Automotive door actuator driver 6.0 1 MB
Description Version Size
AN4823 AN4823: L99DZ80EP/L99DZ81EP H-bridge driver switching consideration and Rgate calculation 2.0 400 KB
Technical Notes & Articles
Description Version Size
TN0897 TN0897: ST SPI protocol 2.2 420 KB


Description Version Size
L99DZ8x Family 1.0 721 KB
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


型号 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
L99DZ80EPTR TQFP 64 10x10x1.0 Tape And Reel -40 150 Active 4.713 1000 NEC EAR99 MALAYSIA MORE INFO No availability reported, please contact our Sales office
L99DZ80EP TQFP 64 10x10x1.0 Tray -40 150 Active 4.713 1000 NEC EAR99 MALAYSIA MORE INFO No availability reported, please contact our Sales office

(*) 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


型号 Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L99DZ80EPTR ActiveTQFP 64 10x10x1.0AutomotiveEcopack2 0
L99DZ80EP ActiveTQFP 64 10x10x1.0AutomotiveEcopack2 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.