NCP1054ST136T3G

Duty Cycle:	77%
Base Part Number:	NCP1054
Mounting Type:	Surface Mount
Supplier Device Package:	SOT-223
Package / Case:	TO-261-4, TO-261AA
Operating Temperature:	-40°C ~ 150°C (TJ)
Control Features:	--
Fault Protection:	Current Limiting, Open Loop, Over Load, Over Temperature
Power (Watts):	40W
Frequency - Switching:	136kHz
Series:	--
Voltage - Supply (Vcc/Vdd):	7.5 V ~ 10 V
Voltage - Start Up:	8.5V
Topology:	Flyback
Voltage - Breakdown:	700V
Internal Switch(s):	Yes
Output Isolation:	Isolated
Part Status:	Active
Packaging:	Tape & Reel (TR)

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PMIC – AC DC Converters, Offline Switchers

The NCP1054ST136T3G is a high-performance POWERMATE Intelligent Power Module (IPM) for AC-DC offline switching applications. It is designed for power supplies up to 400 W. This device consists of a power factor corrector (PFC), an offline half-bridge, a flyback converter, two adaptive on-time controllers, a dedicated comparator and two fault input cancelers.The NCP1054ST136T3G provides fast, integrated control of AC to DC power conversion using its embedded control algorithms, ensuring high efficiency at low losses. It offers analog and digital input signals for simple system design with short validation period. It is suitable for consumer, office and industrial applications, such as PCs, SMPS, consumer and gaming adapters and smart appliances.

Application Field

The NCP1054ST136T3G has various usages in consumer, computer and home appliance fields. Originally designed as a source of AC power to devices, it has also proven useful in a variety of other disciplines such as powering professional audio gear, portable electronics, networking gear, and many other applications. The product efficiency, low output ripple and low EMIs make it a preferred solution for active-mode applications. The product features a wide input voltage range of 89-277VAC, making it the perfect solution for modern development, including remote powering applications.

Working Principle

NCP1054ST136T3G adopts a full-bridge half-bridge topology and all components of an offline power supply can be included in a single IPM package. An external PFC boosts the AC input, and then the power is regulated by an offline half-bridge, followed by a flyback converter. The NCP1054ST136T3G implements an adaptive on-time control scheme, which can detect the switch current and repeat the operation of soft start and burst mode to reduce the output ripple. Furthermore, the fault current is canceled by dedicated comparators, offering protection against short circuit, overload, overvoltage, and abnormal voltage.Overall, the NCP1054ST136T3G provides excellent performance in terms of energy efficiency, power density, and cost. Each of the application fields mentioned above can benefit from the NCP1054ST136T3G, especially away from the power grid. The product’s reliability and efficiency make it an ideal choice for any application that requires AC-DC conversion.

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