Deeteam October 28, 2023
LM3481-Q1 sets the bar high as an automotive-grade product that surpasses the rigorous AEC-Q100 Grade 1 standards. Designed to withstand extreme temperatures ranging from -40°C to +125°C, this chip excels in a wide range of applications with its exceptional features.
Unleash the Power:
Encased in a compact 10-pin VSSOP package, LM3481-Q1 boasts an internal push-pull driver with a peak current capability of 1A, providing unparalleled current limiting and thermal shutdown protection. Its optimized frequency compensation, combined with capacitors and resistors, ensures stable and efficient operation, setting the stage for superior performance.
Efficiency Redefined:
LM3481-Q1 incorporates an internal soft-start feature, enabling a smooth power-up sequence, while operating in current mode for optimal control. With adjustable undervoltage lockout and hysteresis, precise control is maintained even in the most challenging conditions. Its pulse-skipping feature dynamically minimizes power consumption during light loads, optimizing overall efficiency.
Unmatched Specifications:
LM3481-Q1 impresses with its wide input voltage range spanning from 2.97V to 48V, providing versatility for diverse power supply setups. The adjustable and synchronous clock frequency, ranging from 100kHz to 1MHz, allows for fine-tuning and synchronization with external components. With an impressive ±1.5% internal reference voltage stability across the entire temperature range, reliability is guaranteed. Moreover, the chip’s low shutdown current of 10µA (typical, over temperature) further enhances its efficiency.
Versatility at its Core:
As a highly versatile control solution for switch-mode regulators, LM3481-Q1 supports a wide range of topologies, including boost, flyback, SEPIC, and more. Its ability to operate at high switching frequencies empowers designers to create compact, space-saving system designs. With easy frequency adjustment using a single external resistor or synchronization with an external clock, customization is effortless.
Built-In Protection:
Safety is paramount, and LM3481-Q1 excels in this aspect. The chip incorporates essential protection features such as thermal shutdown, short-circuit protection, and overvoltage protection. Furthermore, its energy-saving shutdown mode drastically reduces the total supply current to a mere 5µA, facilitating power sequencing. The internal soft-start limits inrush current during startup, ensuring system reliability from the get-go.
Unbeatable Value:
LM3481-Q1 not only delivers exceptional performance but also comes at a competitive price point, making it the ideal choice for cost-effective and reliable automotive applications. Experience the power, versatility, and efficiency of LM3481-Q1 for your next project.
Keywords: LM3481-Q1, automotive-grade, switching regulator controller, versatile, high performance