Overview
The L99DZ120TR, produced by STMicroelectronics, is an advanced power management IC designed specifically for automotive door zone applications. This device is AEC-Q100 qualified, ensuring it meets the stringent requirements for automotive electronics. It integrates multiple high-side drivers, a LIN 2.2a compliant transceiver, and various protection and supervision features, making it a comprehensive solution for door actuator control and other related functions.
Key Specifications
| Specification | Value |
|---|---|
| Package | LQFP-64 epad |
| Half Bridge Current (RON = 100 mΩ) | 7.5 A |
| Half Bridge Current (RON = 150 mΩ) | 7.5 A |
| Half Bridge Current (RON = 300 mΩ) | 3 A (each of 2 half bridges) |
| Configurable High-Side Driver Current (RON = 500 mΩ) | Up to 1.5 A |
| Configurable High-Side Driver Current (RON = 1600 mΩ) | 0.35 A |
| Internal 10-bit PWM Timer | For each stand-alone high-side driver |
| Voltage Regulators | Two 5 V voltage regulators for microcontroller and peripheral supply |
| LIN Compliance | LIN 2.2a compliant (SAEJ2602 compatible) transceiver |
| Protection Features | Current Monitor, Open-load, Overcurrent, Thermal warning, Thermal shutdown |
Key Features
- AEC-Q100 qualified for automotive applications
- Multiple high-side drivers with various current ratings and RON values
- Internal 10-bit PWM timer for each stand-alone high-side driver
- Programmable soft-start function and thermal expiration feature
- Protection and supervision features including current monitor, open-load, overcurrent, thermal warning, and 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 low-side switches
- Thermal clusters and A/D conversion of supply voltages and internal temperature sensors
Applications
The L99DZ120TR is primarily designed for door zone applications in the automotive sector. It is suitable for controlling door actuators and other related functions that require robust power management and communication capabilities.
Q & A
- What is the primary application of the L99DZ120TR?
The L99DZ120TR is primarily used in automotive door zone applications.
- Is the L99DZ120TR AEC-Q100 qualified?
Yes, the L99DZ120TR is AEC-Q100 qualified, ensuring it meets automotive electronics standards.
- What are the current ratings of the half bridges in the L99DZ120TR?
The device includes half bridges with current ratings of 7.5 A (RON = 100 mΩ and RON = 150 mΩ) and 3 A (RON = 300 mΩ).
- Does the L99DZ120TR have internal voltage regulators?
Yes, it includes two 5 V voltage regulators for microcontroller and peripheral supply.
- What communication protocol does the L99DZ120TR support?
The L99DZ120TR supports the LIN 2.2a protocol (SAEJ2602 compatible).
- What protection features are included in the L99DZ120TR?
The device includes protection features such as current monitor, open-load, overcurrent, thermal warning, and thermal shutdown.
- Does the L99DZ120TR have programmable soft-start and thermal expiration features?
Yes, it includes programmable soft-start and thermal expiration features for driving loads with higher inrush currents.
- What is the package type of the L99DZ120TR?
The L99DZ120TR comes in an LQFP-64 epad package.
- Does the L99DZ120TR support external MOSFETs in H-bridge configuration?
Yes, it supports fully protected drivers for external MOSFETs in H-bridge configuration.
- What is the purpose of the internal 10-bit PWM timer in the L99DZ120TR?
The internal 10-bit PWM timer is used for each stand-alone high-side driver.
