Description:The MEW1000 series is a range of isolated 2W DC-DC converter modules featuring fully regulated output and ultra-wide 4:1 input voltage ranges. The product comes in a SIP-9 package with a very small footprint occupying only 2.4 0.36 square in. on the PCB.
OVER CURRENT, OVER LOAD, SHORT CIRCUIT, UNDER VOLTAGE
Ripple Voltage (Main Out):
0.017675 Vrms
Screening Level:
EN/IEC/UL 62368-1
Seated Height-Max:
12.95 mm
Surface Mount:
NO
Technology:
HYBRID
Terminal Form:
THROUGH-HOLE
Terminal Pitch:
2.54 mm
Terminal Position:
SINGLE
Total Power Output-Max:
2 W
Trim/Adjustable Output:
NO
Width:
9.25 mm
MEW1027 Frequently Asked Questions (FAQs)
Minmax recommends a 4-layer PCB with a solid ground plane, and thermal vias under the device to dissipate heat. A minimum of 1 oz copper thickness is recommended. Additionally, a thermal pad on the bottom of the device should be connected to a heat sink or a thermal management system.
To ensure EMC, Minmax recommends using a shielded enclosure, keeping the DC-DC converter away from sensitive analog circuits, and using a common-mode choke or ferrite bead on the input and output lines. Additionally, a layout with minimal loop areas and a solid ground plane can help reduce EMI.
The maximum allowed capacitance on the output of the MEW1027 is 100uF. Exceeding this value may cause instability or oscillation in the converter. It's recommended to use a low-ESR capacitor with a value between 10uF to 47uF for optimal performance.
While the MEW1027 is a high-quality device, it's not specifically designed for high-reliability or aerospace applications. Minmax recommends using their MEW1027-HR or MEW1027-HP series, which are designed and tested for high-reliability and aerospace applications, respectively.
To troubleshoot issues with the MEW1027, Minmax recommends checking the input voltage, output load, and PCB layout for any errors or inconsistencies. Verify that the device is properly soldered and that the thermal management system is functioning correctly. If issues persist, contact Minmax technical support for further assistance.
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MEW1027 Overview
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