lt3755 sealed lead acid battery charger
The Sealed Lead Acid Battery Charger utilizing the LT3755 DC-DC controller is engineered to efficiently charge SLA batteries while ensuring optimal performance and safety. The LT3755 is a versatile device that can handle a wide input voltage range, making it suitable for various applications. The ability to operate between 4.5 and 40 volts allows for flexibility in power source selection, accommodating different charging environments and requirements.
The adjustable frequency feature, ranging from 100 kHz to 1 MHz, enables the designer to optimize the switching frequency for efficiency and thermal management. Selecting a higher frequency may reduce the size of passive components such as inductors and capacitors, leading to a more compact design. Conversely, a lower frequency may improve efficiency under certain load conditions, allowing for tailored performance based on the specific application needs.
The low shutdown current of less than 1 A is a critical feature for battery management systems, as it minimizes power consumption when the charger is not in active use. This characteristic is particularly beneficial in portable or battery-operated devices where energy conservation is paramount.
The constant-current and constant-voltage regulation capabilities of the LT3755 ensure that the SLA battery is charged safely and effectively. During the initial charging phase, the constant-current mode provides a steady current to the battery, which is essential for preventing damage and ensuring longevity. Once the battery reaches a predetermined voltage threshold, the charger transitions to constant-voltage mode, maintaining the voltage to complete the charging cycle without overcharging.
Overall, this Sealed Lead Acid Battery Charger circuit is a well-rounded solution for charging SLA batteries, combining advanced features, flexibility, and efficiency to meet the demands of modern electronic applications.This Sealed Lead Acid Battery Charger is deigned using the LT3755 DC DC controller. The LT3755 is a DC DC controller designed to operate as a constant-current source and supports a wide input voltage range from 4. 5 up to 40 volts and a can provide a maximum output voltage of 70 volts. The main features of this Sealed Lead Acid (SLA) Battery Char ger circuit are : adjustable frequency 100kHz to 1MHz, low shutdown current: <1 A, constant-current and constant-voltage regulation. 🔗 External reference
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