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Step1:Prepare product

Step2:Desiccant Protection

Step3:Vacuum Packaging

Step4:Individual Package

Step5:Anti-collision Filling

Step6:Packaging Box
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Currently, our products are shipped through DHL, FedEx, SF, and UPS.
DELIVERY TIME1. Once the goods are shipped, estimated delivery time depends on the shipping methods you chose: FedEx International, 5-7 business days.
2. For in-stock parts, orders normally could be shipped out within 1-2days.
STMicroelectronics STEVAL-L6983IV1 technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics STEVAL-L6983IV1.
Download datasheets and manufacturer documentation for STMicroelectronics STEVAL-L6983IV1.
The STEVAL-L6983IV1 is an evaluation board based on ST L6983I, 38 V, 10 W synchronous iso-buck converter designed for isolated applications.
The primary output voltage can be accurately adjusted, whereas the isolated secondary output is derived by using a given transformer ratio. No optocoupler is required.
The primary sink capability up to -4.5 A (even during soft-start) allows a proper energy transfer to the secondary side as well as enables a tracked soft-start of the secondary output.
The control loop is based on a peak current mode architecture and the device operates in forced PWM. The 390 ns blanking time filters oscillations, generated by the transformer leakage inductance, making the solution more robust.
The compact QFN-16 3x3 mm package and the internal compensation of the L6983I help minimizing design complexity and size.
The switching frequency can be programmed in the 200 kHz - 1 MHz range with optional spread spectrum for improved EMC.
The EN pin provides enable/disable functionality. The typical shutdown current is 2 uA when disabled. As soon as the EN pin is pulled-up the device is enabled, and the internal 1.3 ms soft start takes place.
The L6983I features power good open collector that monitors the FB voltage. Pulse by pulse current sensing on both power elements implements an effective constant current protection and thermal shutdown prevents thermal run-away. Due to the primary reverse current limit, the secondary output is protected against short-circuit events.
The evaluation board generates an isolated unregulated voltage and provides the possibility to use a post-regulation to generate a dual voltage (layout available on the bottom of the PCB, components not mounted).
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