产品特点 FEATURES

1 Isolated, regulated DC-DC converter

2 Up to 240W continuous output power, 8.60A continuous output current

3 Peak efficiency of 92.7%, high power density of 653W/in³

4 Wide input voltage range: 43Vdc to 154Vdc

5 Safety Extra Low Voltage (SELV) 28.0V nominal output, with 3000Vdc isolation

6 Zero Voltage Switching (ZVS) high-frequency switching topology, enabling low-profile, high-density filtering

7 Optimized for array operation: supports up to 8 units (total 1920W) without power derating, and allows dissimilar line voltages across the array

8 Equipped with fully operational current limit, and multiple protections including overvoltage (OV), overcurrent (OC), undervoltage (UV), short circuit, and thermal protection

9 Compact 3623 through-hole ChiP package with dimensions: 1.524”x0.898”x0.284” (38.72mmx22.8mmx7.21mm)

10 Supports dynamic trim control (when trim mode is active) with ~30Hz bandwidth

11 Low no-load power consumption: enabled no-load power is up to 4.0W at worst-case line

12 Fast transient response: voltage deviation <10% for load steps, settling time ≤4.0ms

13 RoHS compliant and CE marked

14 High MTBF: 3.39MHrs (per MIL-HDBK-217 FN2) and 5.68MHrs (per Telcordia Issue2)

使用场景 APPLICATIONS

1 Industrial equipment power supply systems

2 Process control systems requiring stable and isolated DC power

3 Transportation and heavy equipment power modules

4 Single unit application: Used alone to power non-isolated point-of-load regulators or direct loads

5 Array application: Paralleled in arrays (e.g., 4 units, up to 8 units) to provide higher power output for large load requirements

6 Applications needing wide input voltage range and high power density

7 Systems requiring multiple protections and high reliability

注意事项 PRECAUTIONS

1 Do not operate beyond absolute maximum ratings, as this may cause permanent damage to the device

2 Ensure input voltage slew rate is ≤1V/µs; if exceeding, a pre-charge circuit must be added

3 External output capacitor requirement: Use 1000-20000µF capacitors with ESR ≤10mΩ; adjust to COUT-EXT-TRANS or COUT-EXT-TRANS-TRIM if load is below 10% rated or trim is dynamically varied

4 Thermal design: Ensure case bottom temperature does not exceed case top temperature for effective over-temperature protection; utilize top surface, bottom surface, and leads for heat dissipation, refer to thermal models for calculation

5 Array operation: Each DCM unit needs a separate input filter and output inductor; follow recommended component values (e.g., L1_x=1µH, R1_x=1Ω, C1_x=2µF) for paralleling circuits

6 Fault handling: Output overvoltage protection (OVP) is latched; clear it by disabling the EN pin or removing input power below VIN-INIT (3Vdc)

7 Light load operation: When load is <10% rated, output voltage may rise up to 3.43V above the calculated value due to light load boosting

8 ESD protection: Follow HBM (CLASS1C) and CDM (CLASS2) ratings to prevent ESD damage

9 Soldering: Peak temperature on the top case should not exceed 135°C; this product is not intended for reflow solder attach

10 Input filter: Add a minimum 1000µF input capacitor if source impedance is insufficient to ensure stability

DCM3623TA5N31B4T00-PDF数据手册-参考资料