NCP1254BSN65T1G

Voltage - Supply (Vcc/Vdd):	8.8 V ~ 35 V
Mounting Type:	Surface Mount
Supplier Device Package:	6-TSOP
Package / Case:	SOT-23-6 Thin, TSOT-23-6
Operating Temperature:	-40°C ~ 125°C (TJ)
Control Features:	--
Fault Protection:	Over Load, Over Power, Over Voltage, Short Circuit
Frequency - Switching:	65kHz
Duty Cycle:	80%
Series:	--
Voltage - Start Up:	18V
Topology:	Flyback
Voltage - Breakdown:	--
Internal Switch(s):	No
Output Isolation:	Isolated
Part Status:	Active
Packaging:	Tape & Reel (TR)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The NCP1254BSN65T1G is one of the most versatile and reliable power management integrated circuits (PMIC) available today. Designed to address the needs of both AC/DC and offline switcher applications, it provides all the necessary features required to minimize component count and simplify circuit design. In this article, we\'ll discuss the application field and working principle of NCP1254BSN65T1G.AC/DC ConvertersThe NCP1254BSN65T1G is ideal for low power, AC/DC converters with a maximum output of 65 watts. Designed for use in both isolated and non-isolated applications, it integrates all of the necessary protections, making it an ideal choice for embedded and industrial systems. The NCP1254BSN65T1G provides constant frequency and valley switch current mode control for greater power efficiency. It operates in continuous and discontinuous mode, and provides low startup current for high efficiency.The NCP1254BSN65T1G includes integrated protection and control features such as overvoltage protection, overcurrent protection, peak current limit, and hiccup mode and latch-off. The device also provides an adjustable soft-start time and a wide input voltage range. The integrated loop compensation simplifies the design process, and reduces external component count.Offline SwitchersThe NCP1254BSN65T1G is also well-suited for offline power supplies such as adapter and charger applications with an output of up to 65W. The device includes an integrated full-bridge topology with a wide input voltage range and high-efficiency switching operation, making it ideal for cost-sensitive applications. The device also provides integrated protection features such as overvoltage protection, overcurrent protection, peak current limit, and hiccup mode and latch-off. Additionally, the device features a programmable soft-start time and a fixed switching frequency.The NCP1254BSN65T1G is designed to meet the stringent requirements of no-load and light-load efficiency, as well as power-good indicator and brown-out protection. The device also provides a temperature pre-warning function, allowing users to increase reliability and safety.Working PrincipleThe NCP1254BSN65T1G is designed to operate in either continuous or discontinuous mode, making it ideal for applications requiring low standby power. In continuous mode, the inductor current is always flowing even when the output load current is low, resulting in improved load regulation and efficiency. At light load, the device enters discontinuous mode and the inductor current is reset to zero, reducing the overall power consumption. The device detects the minimum current by sensing the inductor current before it turns off each output switch. The device then adjusts the duty cycle to maintain minimum inductor current.In addition to operating in continuous and discontinuous mode, the NCP1254BSN65T1G features constant frequency and valley current switch mode control. This allows the device to maintain the same switching frequency over an input voltage range, while at the same time allowing the switching current to be reduced or increased in order to minimize losses. This helps to enhance efficiency and reduce component count.ConclusionThe NCP1254BSN65T1G is one of the most versatile and reliable PMICs available today. It is designed for both AC/DC and offline switcher application fields, providing a high degree of flexibility and excellent performance. Its integrated protection features make it ideal for embedded and industrial systems, while its constant frequency and valley switch current mode control allow for efficient operation with minimum component count. Finally, its optimized operating modes ensure that it can maintain a high level of efficiency even under low load conditions.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description