In some applications requiring high transient power for communication or actuation, such as electrical control systems, automatic meter reading, burglar alarms, and electric access lock applications, large amounts of power are expended in short periods during data transmission and reception or by actuating relays. Therefore, the system typically needs to use a higher constant output converter to meet the demand if a high transient converter is not available, resulting in power redundancy. Furthermore, the high-power converter may lead to a larger final system size or design challenges, as well as increased costs.
To overcome industrial challenges, through comprehensive optimization of circuit design, material selection, and other aspects such as R&D space, MORNSUN researched and developed the first 3W high-transient AC/DC converter with the LDE03-20Bxx-O series. This converter addresses the demand for high-transient power systems, reliably replacing a 12W constant-output power supply with its 3W power supply, thus optimizing system dimensions and reducing costs. Furthermore, the series features high isolation voltage (4000VAC), a wide operating temperature range (-40 to 80°C), low no-load power consumption (0.3W), and comprehensive protection functions (output short circuit, overcurrent, overvoltage, and overtemperature protection). Its dimensions are 37.0 x 24.5 x 18.0 mm (compatible with our LDE03-20Bxx
), saving system application space and ensuring reliable system implementation.

Application
The products are used in electrical control systems, automatic meter reading, burglar alarms and electric access locks, etc. where high transient power is required (such as high transient communication or drive power).

Features
● Stable 3W output, 12W transient output lasting up to 10S.
● Universal input voltage: 85 - 264VAC/100 - 370VDC.


● Simple VDC outputs: 3,3, 5, 9, 12, 15 and 24V.


● Operating temperature range: -40°C to +80°C.
● High insulation voltage: 4000VAC. ● Low standby power consumption: 0.3W.


● Protection against short circuit, overcurrent, overvoltage and overtemperature at the output.


● Full plastic housing, meets UL94V-0 standard.


● EMI: Complies with CISPR32/EN55032 CLASS B.


● Approval according to EN62368 standard.


● Complies with UL62368 and IEC62368 certifications.

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