"BD8372HFP-M", a driver IC for automotive LED taillights developed by Japanese semiconductor manufacturer Romco, can significantly increase the output current accuracy, increase the allowable range of LED errors, and improve the yield of the taillight assembly process.
Rom said that the new product has begun sampling in March 2011, the price is 300 yen / only, and will be in June 2011 from the tentative monthly production of 50,000 units in volume production. The pre-process plan was produced at Rohm and Hachima Co., Ltd. (Okayama Prefecture) and later at ROHM Integrated Systems Co. , Ltd. (Thailand).
According to reports, compared with ordinary LED drivers, the new product has an output power of 200mA, and the output current is increased by about 3 to 5 times, while the output current accuracy is controlled to ±3%.
The new product adopts the source driving method. After the connection between the driver IC board and the LED circuit board is reduced to one point, the on/off detection required by the vehicle use can be easily realized. The brightness of the taillights and the brake lights can be set to independent currents, which greatly facilitates the design of the vehicle taillights. The P-BUS function and the LED open/short detection protection function further enrich the failsafe function.
In addition, the development of this new product has established a dedicated production line for the automotive market. After the substantial expansion of automotive electrical products, ROHM will further strengthen the serialization of LED driver IC products.
Rom said that the new product has begun sampling in March 2011, the price is 300 yen / only, and will be in June 2011 from the tentative monthly production of 50,000 units in volume production. The pre-process plan was produced at Rohm and Hachima Co., Ltd. (Okayama Prefecture) and later at ROHM Integrated Systems Co. , Ltd. (Thailand).
According to reports, compared with ordinary LED drivers, the new product has an output power of 200mA, and the output current is increased by about 3 to 5 times, while the output current accuracy is controlled to ±3%.
The new product adopts the source driving method. After the connection between the driver IC board and the LED circuit board is reduced to one point, the on/off detection required by the vehicle use can be easily realized. The brightness of the taillights and the brake lights can be set to independent currents, which greatly facilitates the design of the vehicle taillights. The P-BUS function and the LED open/short detection protection function further enrich the failsafe function.
In addition, the development of this new product has established a dedicated production line for the automotive market. After the substantial expansion of automotive electrical products, ROHM will further strengthen the serialization of LED driver IC products.
Lead Acid vs. Lithium: Safety
Safety is always a primary consideration when designing a solar system, but it becomes even more important when your system is on a boat far from shore, or an RV on a remote road. Different battery chemistries have different risk factors. Obviously, abusing any type of battery can create a dangerous situation. But with normal, and perhaps even a bit of rough treatment, the different batteries have different safety concerns that need to be addressed.
- Flooded lead acid batteries have an acid and water electrolyte in the battery that has to be checked on a regular basis. During normal charging cycles, this mixture turns into a gas that needs to be vented outside. A buildup of the gas inside a vehicle or vessel can be explosive. Proper ventilation mitigates this concern. The outgassing of the battery is normal, but requires owners to regularly check to see when the electrolyte level gets low from the outgassing. If low, it needs to have more distilled water added. This runs the risk of acid spills if overfilled or overcharged. This requires you to be prepared with proper safety equipment including gloves, safety glasses, and baking soda to neutralize the acid if needed.
- Sealed lead acid batteries do not have outgassing or electrolyte levels to check, as they do not outgas. Normal battery safety measures should be followed, like checking for tight cable connections, corrosion, and preventing physical damage to the battery itself.
- Lithium batteries also do not outgas, but certain types (the ones with cobalt, known as lithium cobalt oxide or LCO) can experience thermal runaway – a condition where the battery starts to get hot, which causes it to react to the heat and get hotter and hotter until it catches on fire. LCO batteries are most commonly used in cell phones, hoverboards, and electric cars, and are generally not recommended for mobile applications.
Storage Battery Pack,Power Pack Home,Battery Storage Pack,Battery Pack Storage
Shenzhen Zhifu New Energy Co., Ltd. , https://www.sunbeambattery.com