DMO565R DATASHEET PDF

DMOR Datasheet PDF, DMOR datasheet, DMOR pdf, DMOR pinout, DMOR data, circuit, ic, manual, substitute, parts. Description. The FSDMRE, FSDMRE and FSDMRE are an integrated Pulse Width Modulator (PWM) and. SenseFET specifically designed for. Features. • Optimized for Quasi-Resonant Converter (QRC). • Advanced Burst- Mode Operation for under 1W Standby. Power Consumption. • Pulse-by-Pulse.

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DMO565R даташиты PDF

Once Vcc reaches 12V, the internal current source is disabled. SN datasheet – doctor- SN datasheet Author: This causes the feedback voltage to rise. Free standing with no heat-sink under natural convection. Over load protectiontNormal operation Fault situation Normal operationFigure 6.

Pulse width modulation PWM circuit2. The feedback voltage then falls and the process repeats. Excessive voltage across the Rsense resistor would lead to incorrect feedback operation in the current mode PWM control. TempShutDown Delay Current vs. As dqtasheet load decreases, the feedback voltage decreases. Assuming that the 0. This event typically happens when the input voltage is increased or the output load is decreased.

If the voltage of this pin reaches 6. TempBurst Mode Enable Voltage vs.

DMOR Datasheet PDF –

In this condition, Vfb continues increasing until it reaches 6V, when the switching operation is terminated as shown in Figure 7. The voltage on the output datashet is progressively increased with the intention of smoothly establishing the required output voltage. TempFeedback Source Current vs. Then, Vfb climbs up in a similar manner to the over load situation, forcing the preset maximum current to be supplied to the SMPS until the over load protection is activated.

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It is designed to datasueet the transformer directly.

Datasheet DMO565R

At this point switching stops and the output voltages start to drop at a rate dependent on standby current load. An opto-coupler such as the H11AA and shunt regulator such as the KA are typically used to implement the datashet network. In this generation the startup resistor is replaced by an internal high voltage current source. If Vfb exceeds 2.

Therefore, the peak value of the current through the Sense FET is limited. Ql5 datasheet pdf -? Daatsheet continuous power in a non-ventilated enclosed adapter measured at 50C ambient.

Because more energy than required is provided to the output, the output voltage may exceed the rated voltage before the over load protection is activated, resulting in the breakdown of the devices in the secondary side.

Datasheet Release Date This pin is internally connected to the inverting input of the PWM comparator. These parameters, although guaranteed, are tested in EDS wafer test process.

DMOR даташиты PDF – Datasheetcom

If the output consumes beyond this maximum power, the output dmmo565r Vo decreases below the set voltage. It also helps to prevent transformer saturation and reduce the stress on the secondary diode during startup.

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This device is a basic platform well suited for cost effective designs of flyback converters. In this situation, the protection circuit should be activated in order to protect the SMPS. If the secondary side feedback circuit were to malfunction or a solder defect caused an open in the feedback path, the current through the opto-coupler transistor becomes almost zero.

When Vcc reaches the UVLO stop voltage, 8V, the protection is reset and the internal high voltage current source charges the Vcc capacitor via the Vstr pin.

These parameters indicate the inductor current. Published on Apr View This pin is the positive supply voltage input. This pin is the control ground and the Sense FET source. This reduces the current through the opto-coupler LED, which also reduces the opto-coupler transistor current, thus increasing the feedback voltage Vfb.

This causes Vcc to fall. The typical soft start time is 10msec, The pulse width to the power switching device dmo565rr progressively increased to establish the correct working conditions for transformers, inductors, and capacitors.

Cdbe datasheet pdf – datasheet pdf Cdbe datasheet pdf This parameter is the current flowing into the control IC.