STMicroelectronics

L99DZ80EP

L99DZ80EP Description

The L99DZ80EP from STMicroelectronics is a highly integrated door module driver IC designed for automotive applications. Packaged in a 64-pin TQFP (Thin Quad Flat Package), this surface-mount device operates within a wide supply voltage range of 5V to 28V, making it suitable for robust automotive power systems. With an ultra-low quiescent current of 4µA, it ensures minimal power consumption, critical for energy-efficient designs. The device is RoHS3 compliant, REACH unaffected, and rated MSL 3 (168 hours), ensuring reliability under harsh environmental conditions. Its automotive-grade qualification underscores its suitability for mission-critical vehicle systems.

L99DZ80EP Features

• Low Power Consumption: 4µA supply current enhances battery life in always-on systems.
• Wide Voltage Range: 5V–28V operation supports 12V/24V automotive architectures.
• Robust Packaging: 64TQFP ensures compact footprint and thermal performance.
• Automotive Compliance: AEC-Q100 qualified for reliability in extreme temperatures and vibrations.
• Integrated Protection: Built-in safeguards against overvoltage, reverse polarity, and short circuits.
• High Efficiency: Optimized for driving loads like motors, LEDs, and solenoids in door modules.

L99DZ80EP Applications

The L99DZ80EP excels in automotive door control systems, including:

• Power Window Drivers: Precision motor control for smooth operation.
• Central Locking Systems: Reliable actuation of locking mechanisms.
• Mirror Adjustment Modules: Efficient bidirectional motor driving.
• Interior Lighting Control: PWM-driven LED management for ambient lighting.
  Its low EMI emissions and diagnostic features (e.g., fault reporting) make it ideal for ISO 26262-compliant safety systems.

Conclusion of L99DZ80EP

The L99DZ80EP stands out as a highly reliable, power-efficient solution for automotive door modules, combining low standby current, wide voltage tolerance, and robust protection. Its integration simplifies design while meeting stringent automotive standards, reducing BOM complexity. Engineers targeting next-gen vehicle electrification will find it indispensable for space-constrained, safety-critical applications.