Overview
The DALC208SC6Y is an automotive low capacitance diode array designed by STMicroelectronics to provide protection against electrostatic discharge (ESD) and other transient overvoltages. This device is specifically tailored to safeguard components connected to data and transmission lines. It features a rail-to-rail protection topology, making it suitable for overshoot and undershoot suppression on sensitive logic inputs. The DALC208SC6Y is AEC-Q101 qualified, ensuring high reliability and compliance with automotive standards.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Peak Reverse Voltage (VRRM) per Diode | 9 | V |
| Input Capacitance per Diode | < 5 | pF |
| Leakage Current (IR) per Diode | < 1 | µA |
| Operating Junction Temperature Range | -40 to +150 | °C |
| Storage Temperature Range | -65 to +150 | °C |
| Maximum Junction Temperature for Soldering | 260 | °C |
| Forward Voltage Drop (VF) at IF = 50 mA | 1.2 | V |
| Package Type | SOT23-6L |
Key Features
- Protection of 4 lines against ESD and transient overvoltages.
- Very low capacitance per diode (< 5 pF) to prevent significant signal distortion.
- Very low leakage current (< 1 µA) to minimize power consumption.
- Cost-effective solution compared to discrete diode solutions.
- High efficiency in ESD suppression with compliance to ISO10605 and ISO7637-3 standards.
- Monolithic integration for high reliability and lower PCB area consumption.
- AEC-Q101 qualified for automotive applications.
Applications
- Information and entertainment systems.
- Signal communications and connectivity.
- Comfort and convenience systems in automotive environments.
- Any equipment requiring ESD and EOS transient overvoltage protection.
Q & A
- What is the primary function of the DALC208SC6Y diode array?
The primary function is to protect components connected to data and transmission lines from overvoltages caused by electrostatic discharge (ESD) and other transients.
- What is the peak reverse voltage (VRRM) per diode in the DALC208SC6Y?
The peak reverse voltage (VRRM) per diode is 9 V.
- How much input capacitance does each diode in the DALC208SC6Y have?
Each diode has an input capacitance of less than 5 pF.
- What is the leakage current (IR) per diode in the DALC208SC6Y?
The leakage current (IR) per diode is less than 1 µA.
- Is the DALC208SC6Y AEC-Q101 qualified?
Yes, the DALC208SC6Y is AEC-Q101 qualified, making it suitable for automotive applications.
- What standards does the DALC208SC6Y comply with for ESD protection?
The DALC208SC6Y complies with ISO10605 and ISO7637-3 standards for ESD protection.
- How can the layout of the PCB affect the ESD protection provided by the DALC208SC6Y?
The layout of the PCB can significantly affect the ESD protection. Short tracks from the VREF2 pin to the power supply and from the VREF1 pin to GND are recommended to avoid overvoltages due to parasitic phenomena. Adding a capacitance of 100 nF close to the DALC208SC6Y can also enhance protection.
- What is the recommended soldering reflow profile for the DALC208SC6Y?
The recommended soldering reflow profile involves specific temperature ramps and times to ensure proper soldering without damaging the component. Details can be found in the datasheet.
- What package type is the DALC208SC6Y available in?
The DALC208SC6Y is available in the SOT23-6L package type.
- What are the storage and operating temperature ranges for the DALC208SC6Y?
The storage temperature range is -65 to +150 °C, and the operating junction temperature range is -40 to +150 °C.
