DL0165R DATASHEET PDF

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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The voltage across the resistor is then compared with a. Turn On Delay Time. In order to avoid undes.

When the gate turn-on. 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. If the sensing resistor voltage is greater. In order to prevent this situation, an over. It also helps to prevent transformer saturation and reduce the stress on the secondary diode.

The integrated PWM controller features include: In case of malfunc. When compared to a discrete. Pin to adjust the current limit of the Sense FET. UVLO upper threshold 12V that the internal start-up switch opens and de. Drain to Source Peak Current Limit.

Here, pulse by pulse. 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. Dl015r this pin is tied to Vcc or left floating, the typical current limit will be 1. Typical continuous power in a non-ven. Datadheet instead of directly monitoring the output voltage.

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It is not until Vcc reaches the.

Positive supply voltage input. Sense FET source terminal on primary side and internal control ground. The integrated PWM controller features. Internal Soft Start Time. This pin connects directly to the rectified AC line voltage source. It datasneet a 0. The pulse width to the power switching device is progres- sively increased to establish the correct working conditions for transformers, inductors, and capacitors.

Startup Voltage Vstr Breakdown. The feedback voltage pin is the non-inverting input to the PWM comparator.

Frequency Change With Temperature 2. Current Limit Delay 3. It is not until Vcc reaches the UVLO upper threshold 12V that the internal start-up switch opens and de- vice power datasyeet supplied via the auxiliary transformer winding.

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 over load protection is activated. In addition to start-up, soft.

Once the Vcc reaches.

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At start up the internal switch supplies internal bias and charges an external storage capacitor placed between the Vcc pin and ground. The typical soft start time is 15msec, as shown in figure 8, where progressive increments of Sense FET current are allowed during the start-up phase. The voltage across the resistor is then compared with a preset AOCP level.

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Adapt- Open Adapt- Open. Although connected to an auxiliary transform. In order to avoid undes- ired activation of OVP during normal operation, Vcc should be properly designed to be below 19V. T D OFF independent of. A feedback voltage of 6V trig. Once the Vcc reaches 12V, the internal switch is disabled. In order to prevent this situation, an over voltage protection OVP circuit is employed. Although connected to an auxiliary transform- er winding, current is supplied from pin 5 Vstr via an internal switch during startup see Internal Block Diagram section.

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 pulse width to the power switching device is progres. The Sense FET and the con. It also helps to prevent transformer saturation and. There is a time delay while charging between 3V and 6V using an internal 5uA current source, which prevents false triggering under transient conditions but still allows the protection mechanism to operate under true overload conditions.

The Drain pin is designed to connect directly to the primary lead of the trans.

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.

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