DQM1-5-S5-S

Part: DQM1-5-S5-S — CUI (Bel Fuse)

Type: Isolated DC-DC Converter

Description: 1 W regulated isolated DC-DC converter providing a 5 Vdc output from a 4.5–5.5 Vdc input with 3,000 Vdc isolation and 86% typical efficiency.

Operating Conditions:

• Supply voltage: 4.5–5.5 Vdc (5 Vdc nominal)
• Operating temperature: -40 to 105 °C (with derating)
• Output voltage: 5 Vdc
• Output current: 20 to 200 mA

Absolute Maximum Ratings:

• Surge input voltage: -0.7 to 9 Vdc (for 1 second maximum)
• Pin soldering temperature: 300 °C (1.5 mm away for 10 seconds)
• Storage temperature: -55 to 125 °C

Key Specs:

• Output power: 1 W max
• Efficiency: 86% typ (at nominal input and max full load, 25 °C)
• Ripple and noise: 100 mVp-p max (full load, nominal input, 20 MHz bandwidth)
• Line regulation: ±1.2% typ (input voltage variation ±1%)
• Load regulation: 8% typ (at full load)
• Temperature coefficient: ±0.03%/°C typ (at full load)
• Switching frequency: 220 kHz typ (nominal Vin, full load)
• Isolation voltage: 3,000 Vdc min (input to output for 1 minute, 1 mA max)
• Maximum capacitive load: 4,000 μF

Features:

• 1 W isolated output
• Industry standard SIP package
• 3,000 Vdc isolation voltage
• Continuous short circuit protection with auto recovery
• Certified to IEC/EN/UL 62368-1
• UL94V-0 flame retardant, heat resistant black plastic case

Applications:

• Industrial power isolation
• Distributed power systems
• Telecom and datacom systems

Package:

• SIP (19.60 × 6.00 × 10.10 mm)

• 1 W isolated output
• industry standard SIP package
• single and dual regulated output
• 3,000 Vdc isolation voltage
• -40 to 105°C temperature range with derating
• certified to IEC/EN 62368-1

Notes:

1. At full load, nominal input, 20 MHz bandwidth oscilloscope.

It is recommended to use at a load of over 5%. If the load is below 5%, the ripple index of the product may exceed the specifications, but it does not affect the reliability of the product.

1. The efficiency is test by nominal input and max. full load at 25˚C.
2. The model is UL/cUL certified.
3. All specifications measured at Ta=25°C, nominal input voltage, rated output load, and after warm up unless otherwise specified.
4. The input voltage should not exceed the specified range value, otherwise it may cause permanent and irreparable damage.

To further minimize input and output ripple, a capacitor filtering network can be connected to the input and output ter -minals. The recommended application circuits are illustrated in Figure 1 & 2. It is important to select an appropriate filter capacitor; excessive capacitance may lead to start-up issues. For safe and reliable operation, refer to Table 1 & 2 for the recommended capacitive load values for each output.