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Description
TinySwitch Family Energy Efficient, Low Power Off-line Switchers
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Lowest Cost, Low Power Switcher Solution
● Lower cost than RCC, discrete PWM and other integrated/hybrid solutions
● Cost effective replacement for bulky linear adapters
● Lowest component count
● Simple ON/OFF control - no loop compensation devices
● No bias winding - simpler, lower cost transformer
● Allows simple RC type EMI filter for up to 2 W from universal input or4 W from 115 VAC input.
Extremely Energy Efficient
● Consumes only 30/60 mW at 115/230 VAC with no load
● Meets Blue Angel, Energy Star, Energy 2000 and 200mW European cell phone requirements for standby
● Saves $1 to $4 per year in energy costs (at $0.12/kWHr) compared to bulky linear adapters
● Ideal for cellular phone chargers, standby power supplies for PC, TV and VCR, utility meters, and cordless phones.
High Performance at Low Cost
● High voltage powered - ideal for charger applications
● Very high loop bandwidth provides excellent transient response and fast turn on with practically no overshoot
● Current limit operation rejects line frequency ripple
● Glitch free output when input is removed
● Built-in curent limit and thermal protection
● 44 kHz operation (TNY253/4) with snubber clamp reduces EMI and video noise in TVs & VCRs
● Operates with optocoupler or bias winding feedback
Description
The TinySwitch family uses a breakthrough design to provide the lowest cost, high efficiency, off-line switcher solution in the 0 to 10 W range.These devices integrate a 700 V power MOSFET, oscillator, high voltage switched current source, current limit and thermal shutdown circuitry. They start-up and run on power derived from the DRAIN voltage, eliminating the need for a transformer bias winding and the associated circuitry. And yet, they consume only about 80mW at no load, from 265VAC input.A simple ON/OFF control scheme also eliminates the need for loop compensation.
The TNY253 and TNY254 switch at 44 kHz to minimize EMI and to allow a simple snubber clamp to limit DRAIN spike voltage. At the same time, they allow use of low cost EE16 core transformers to deliver up to 5 W.The TNY253 is identical to TNY254 except for its lower current limit, which reduces output short circuit current for applications under 2.5W. TNY255 uses higher switching rate of 130kHz to deliver up to 10W from the same low cost EE16 core for applications such as PC standby supply. An EE13 or EF13 core with safety spaced bobbin can be used for applications under 2.5W. Absence of a bias winding eliminates the need for taping/margins in most applications, when triple insulated wire is used for the secondary.This simplifies the transformer construction and reduces cost.
Preview of the first 3 pages of the data sheet
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10000 buyer reviews from United States
Kenneth Hall
Length of registration:7 years
The testing result for the Intergrated Circuits TNY255PN ordered from Utsource website was satisfactory. The device was tested for its functionality, power consumption, and temperature performance. The results showed that the device was able to operate within the specified voltage and current range, and that the power consumption was within the expected range. The temperature performance was also
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03/17/2023
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TNY255P
TNY255P has several brands around the world that may have alternate names for TNY255P due to regional differences or acquisition. TNY255P may also be known as the following names:
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Unit Price:0.88680
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