The product is a dual-chip automotive-grade power protection solution designed for antenna systems. Developed by Al Summers Company (elmos) based in Dortmund, Germany, this compact chip offers comprehensive protection features including ESD (electrostatic discharge) protection for the antenna and short-circuit protection for the power supply to ground or battery. It also includes overheat protection to ensure safe operation under various conditions.
The device uses an I²C bus interface, allowing easy communication with multiple devices through just two data lines. It is available in a QFN20L5 package, making it ideal for space-constrained applications. The chip supports input voltages ranging from 4.5V to 25V, making it suitable for a wide range of automotive environments. It can independently provide two power supplies, with output voltages adjustable between 3.3V and VBat.
With its built-in 8-bit ADC and I²C interface, the chip enables real-time monitoring of output voltage and current. It allows users to set custom thresholds for overvoltage and undervoltage on each output channel. If a fault is detected, the chip automatically shuts down to prevent damage. Additionally, it can control an external bipolar NPN transistor to reduce power consumption.
The analog sensor at the input can be used alongside a programmable digital output to monitor the third antenna power circuit or other system functions. This makes the chip highly versatile for different automotive applications.
Key Features:
- Automotive input voltage range: 6V to 40V, including load dump conditions
- Programmable output voltage range: 3.3V to VBat via resistor divider
- Soft start function for controlled power-up
- Overcurrent and open-circuit protection up to 200mA
- Overvoltage, undervoltage, overtemperature, and input open-circuit protection
- Fault indication signal when protection is triggered
- External NPN transistor control for reduced power loss
- I²C interface for programmable voltage and current thresholds
- Digital comparator for additional functionality
- Fast 8-bit ADC for real-time voltage and current monitoring
Applications:
- Car antenna modules
- Navigation and radio equipment
- General-purpose voltage regulation
This chip is ideal for automotive systems requiring reliable and efficient power management, especially in environments where stability and safety are critical. Its small size and advanced diagnostic capabilities make it a powerful choice for modern vehicle electronics.
Fast Charge with PD 3.0: The USB C charger features a Thunderbolt 3 USB C port for full-speed charging, charging a 16-inch MacBook Pro in just 1 hour and 30 minutes. (Note input: AC 100-240V-1.5A(1.5A), 50-60Hz, output: 20.5V=4.7A, 15V=3A, 9V=3A or 5.2V=2.4A.
Wide Compatibility: Macbook Charger is compatible with Mac Pro 16 15 14 13", Mac Air 13", i-Pad Pro 11"/12.9", and also compatible with other USB-C enabled devices. Such as laptops, cameras, smart watches, mobile phones, tablets, game consoles, headphones, Nintendo Switch, etc.
GREAT ALTERNATIVE USB-C CHARGER: This compact USB C laptop charger is designed with a foldable plug for easy portability and convenient home/office and outdoor charging.
What you get: USB C Charger Add a free 6.6" USB-C to USB-C charging cable, compatible with Macbook Pro, Mac book Air, iPad Pro, it's more sturdy, super durable, tangle-free, with a lifespan of over 10000 Second-rate.
About this project
ADVANCED SAFE CHARGING: The USB-C MacBook Pro Charger Power Adapter combines advanced safety features and premium fire-resistant materials with built-in protection against overheating, overcharging, overcurrent, and overvoltage.Fast Charge with PD 3.0: The USB C charger features a Thunderbolt 3 USB C port for full-speed charging, charging a 16-inch MacBook Pro in just 1 hour and 30 minutes. (Note input: AC 100-240V-1.5A(1.5A), 50-60Hz, output: 20.5V=4.7A, 15V=3A, 9V=3A or 5.2V=2.4A.
Wide Compatibility: Macbook Charger is compatible with Mac Pro 16 15 14 13", Mac Air 13", i-Pad Pro 11"/12.9", and also compatible with other USB-C enabled devices. Such as laptops, cameras, smart watches, mobile phones, tablets, game consoles, headphones, Nintendo Switch, etc.
GREAT ALTERNATIVE USB-C CHARGER: This compact USB C laptop charger is designed with a foldable plug for easy portability and convenient home/office and outdoor charging.
What you get: USB C Charger Add a free 6.6" USB-C to USB-C charging cable, compatible with Macbook Pro, Mac book Air, iPad Pro, it's more sturdy, super durable, tangle-free, with a lifespan of over 10000 Second-rate.
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Shenzhen Waweis Technology Co., Ltd. , https://www.waweis.com