DLR datasheet, DLR datasheets and manuals electornic semiconductor part. FSDLRL, FSDLRL, FSDLRL, FSDLRL and other. Datasheet search engine for Electronic Components and Semiconductors. DLR data sheet, alldatasheet, free, databook. DLR parts, chips, ic. DLR datasheet,Page:3, ´╗┐FSDLRN Pin Definitions Pin Number 1 Pin Name GND Pin Function Description Sense FET source terminal on primary side .

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In order to avoid undes- ired activation of OVP during normal operation, Vcc should be properly designed to be below 19V. A datasehet voltage of 6V trig.

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The Drain pin is designed to connect directly to the primary lead of the trans- former and is capable of switching a maximum of V. Because excess energy 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.

If this pin is tied to Vcc or left floating, the typical current limit will be 1. This device is a basic platform well suited for cost effective designs of flyback converters.

In case of malfunc- tion in the secondary side feedback circuit, or feedback loop open caused by a defect of solder, the current through the opto-coupler transistor becomes almost zero. The integrated PWM controller features.


If the sensing resistor voltage is greater. Sense FET source terminal on primary side and internal control ground. Pin Configuration Top View 3.

Startup Voltage Vstr Breakdown. Home – IC Supply – Link. The voltage across the resistor is then compared with a preset AOCP level.

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In order to avoid undes. The voltage on the output capacitors is progressively increased with the intention of smoothly establishing the required output volt- age. Over load protection 4. It is not until Vcc reaches the. Then, Vfb climbs up in a similar manner to the over load situation, forc- ing the preset maximum current to be supplied to the SMPS until the datashset load protection is activated.

Drain to Source Peak Current Limit. The voltage across the resistor is then compared with a. Minimizing the length of the trace connecting this pin to the transformer will decrease leak- age inductance.

In addition to start-up, soft- start is also activated at each restart attempt during auto- restart and when restarting after latch mode is activated.

The Drain pin is designed to connect directly to the primary lead of the trans. Pin to adjust the current limit of the Sense FET. The typical soft start time is. Vcc instead of directly monitoring the output dagasheet. Maximum practical continuous power dl0615r an open frame. This device is an integrated high voltage power switching regulator which combine an avalanche rugged Sense FET with a current mode PWM control block. The feedback voltage pin is the non-inverting input to the PWM comparator.


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The typical soft start time ddatasheet 15msec, as shown in figure 8, where progressive increments of Sense FET current are allowed during the start-up phase. It is not until Vcc reaches the UVLO upper threshold 12V that the internal start-up switch opens and de- vice power is supplied via the auxiliary transformer winding.

It also helps to prevent transformer saturation and.

The Sense FET and the con. Although connected to an auxiliary transform- er winding, current is supplied from pin 5 Vstr via an datahseet switch during startup see Internal Block Diagram section. Current Limit Delay 3. In case of malfunc.

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